[{"id":256565,"date":"2026-09-17T16:47:50","date_gmt":"2026-09-17T20:47:50","guid":{"rendered":"https:\/\/www.thetransmitter.org\/?p=256565"},"modified":"2026-09-22T11:38:09","modified_gmt":"2026-09-22T15:38:09","slug":"incredible-shrinking-grant-deadlines-at-the-brain-initiative","status":"publish","type":"post","link":"https:\/\/www.thetransmitter.org\/funding\/incredible-shrinking-grant-deadlines-at-the-brain-initiative\/","title":{"rendered":"Incredible shrinking grant deadlines at the BRAIN Initiative"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>\u201cA month is crazy,\u201d says one former recipient, referring to a new funding opportunity\u2019s timeline.<\/p>\n","protected":false},"author":73,"featured_media":256566,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[152],"tags":[107,40],"class_list":["post-256565","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-funding","tag-policy"],"acf":{"primary_tag":107,"doi_url":"https:\/\/doi.org\/10.53053\/PTAN9112","citation_count":"0","custom_js_library":"","hero_type":"feat_image","hero_alt_image":null,"hero_youtube":"","hero_video":null,"hero_layout":"landscape","hero_caption":"<strong>Tight timeline:<\/strong> Scientists have been given just 38 days to apply for the latest funding opportunity offered by the BRAIN Initiative.","hero_by":"Illustration by Rebecca Horne \/ Source: iStock\/ baona","hero_credit":"","hero_bg_color":"tan","authors":[107146],"other_authors":"","related_title":"Explore more from <em>The Transmitter<\/em>","related_hide":false,"related_filter":"latest","related_tag":null,"related_category":null,"related_custom":{"articles":null},"related_custom_wwn":{"articles":null},"newsletter":"","banner_content":"","banner_url":"","apple_article_id":"960f8c22-f92d-4dc4-a66a-9cb8f31b1ee4","apple_article_revision":"AAAAAAAAAAAAAAAAAAAAAA==","google_button_text":"","google_btn_bg_color":"","tooltip_text":"","sidebar_related_hide":false,"sidebar_related_title":"related articles","sidebar_related_hide_images":false,"sidebar_related_articles":"","comps":[{"acf_fc_layout":"copy_comp","copy":"<span style=\"font-weight: 400;\">The scramble began on 31 August.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">That was the day that the National Institutes of Health released a new notice for a funding opportunity from the BRAIN Initiative.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The \u201cIntegrated BRAIN Circuits Program\u201d<\/span> <span style=\"font-weight: 400;\">offers around $1 million per year and requires \u201c<\/span><a href=\"https:\/\/files.simpler.grants.gov\/opportunities\/ffe98704-96a8-4f41-a32b-49edd0409006\/attachments\/82224d64-9f1d-484d-ada4-dc9fdd1071d6\/RFA-NS-27-002-Full-Announcement.html\"><span style=\"font-weight: 400;\">a high level of coordination and sharing<\/span><\/a><span style=\"font-weight: 400;\">\u201d among teams of three to six investigators.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The program has been <\/span><a href=\"https:\/\/grants.gov\/search-results-detail\/360398\"><span style=\"font-weight: 400;\">in the works at the NIH for over a year<\/span><\/a><span style=\"font-weight: 400;\">, but prospective applicants have only 38 days to submit their completed application. The deadline is 7 October.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">From that, subtract the seven-plus days that university grant administrators typically demand to review outgoing proposals.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u201cIt\u2019s just not enough time,\u201d says <\/span><a href=\"https:\/\/med.nyu.edu\/faculty\/zhe-s-chen\"><span style=\"font-weight: 400;\">Zhe Sage Chen<\/span><\/a><span style=\"font-weight: 400;\">, professor of neuroscience at New York University, who was invited to join two separate teams applying for the BRAIN Initiative's circuits program earlier this month. One team has since decided to postpone their application for another year. \u201cThey don\u2019t even have the right people yet,\u201d Chen says.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The shrinking deadlines for the BRAIN Initiative and other programs at the National Institutes of Health represent one more way in which the Trump Administration appears to be straitjacketing the funding agency, which has seen <\/span><a href=\"https:\/\/www.thetransmitter.org\/funding\/nih-cuts-quash-323-million-for-neuroscience-research-and-training\/\"><span style=\"font-weight: 400;\">programs canceled<\/span><\/a><span style=\"font-weight: 400;\"> and <\/span><a href=\"https:\/\/www.thetransmitter.org\/funding\/u-s-brain-initiative-set-to-lose-81-million-this-year\/\"><span style=\"font-weight: 400;\">budgets slashed<\/span><\/a><span style=\"font-weight: 400;\"> in recent years.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">When NIH <\/span><a href=\"https:\/\/dpcpsi.nih.gov\/autism-data-science-initiative\/faqs\"><span style=\"font-weight: 400;\">launched<\/span><\/a><span style=\"font-weight: 400;\"> its Autism Data Science Initiative in May 2025, investigators only had a month to submit a full proposal.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">At the time, the NIH said that \u201cthe timeline is shortened to allow NIH to commit the funds for this ROA [research opportunity announcement] by the end of the fiscal year.\u201d<\/span>\r\n\r\n<span style=\"font-weight: 400;\">But such tight deadlines have become the rule rather than the exception. \u201cA month is crazy,\u201d says one BRAIN Initiative grantee, who asked not to be named so that he could talk openly. \u201c[The Administration\u2019s] goal is, I think, to just screw NIH as badly as they can.\u201d<\/span>\r\n\r\n[tt_sidebar_quote author='<span style=\"font-weight: 400;\">John Ngai<\/span>']<span style=\"font-weight: 400;\">It\u2019s no secret that getting these NOFOs published has been taking longer than it has in the past.<\/span>[\/tt_sidebar_quote]\r\n\r\n[tt_text class='']L[\/tt_text]<span style=\"font-weight: 400;\">aunched in <\/span><a href=\"https:\/\/obamawhitehouse.archives.gov\/node\/300741\"><span style=\"font-weight: 400;\">April 2013<\/span><\/a><span style=\"font-weight: 400;\">, the BRAIN Initiative aims to help develop technologies that can improve our understanding of how the brain works and how certain brain disorders arise. Since 2023, its funding <\/span><a href=\"https:\/\/www.thetransmitter.org\/funding\/letter-asks-congress-for-nearly-500-million-to-sustain-brain-initiative\/\"><span style=\"font-weight: 400;\">has declined<\/span><\/a><span style=\"font-weight: 400;\"> by more than 30 percent from a high of $680 million.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Although the initiative received <\/span><a href=\"https:\/\/www.thetransmitter.org\/funding\/neuroscience-brain-initiative-gain-budget-in-bad-nih-funding-bill\/\"><span style=\"font-weight: 400;\">a boost from Congress earlier this year<\/span><\/a><span style=\"font-weight: 400;\">, the Administration has since made it difficult for grantmakers to give out their funds.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">For example, in previous years, the NIH posted the BRAIN Initiative\u2019s notice for funding opportunities (NOFOs) anywhere from <\/span><a href=\"https:\/\/grants.nih.gov\/grants\/guide\/rfa-files\/RFA-EB-22-001.html\"><span style=\"font-weight: 400;\">three<\/span><\/a><span style=\"font-weight: 400;\"> to <\/span><a href=\"https:\/\/grants.nih.gov\/grants\/guide\/rfa-files\/rfa-mh-22-245.html\"><span style=\"font-weight: 400;\">eight months<\/span><\/a><span style=\"font-weight: 400;\"> prior to the first submission deadline.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">But <\/span><a href=\"https:\/\/irp.nih.gov\/pi\/john-ngai\"><span style=\"font-weight: 400;\">John Ngai<\/span><\/a><span style=\"font-weight: 400;\">, director of the BRAIN Initiative, says that these funding announcements can now be released only after they have been cleared by the Department of Health and Human Services, which is led by political appointees.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u201cIt\u2019s no secret that getting these NOFOs published has been taking longer than it has in the past,\u201d he says. \u201cBecause of budget fluctuations, we had to put a pause on certain programs, and we kind of got ourselves reoriented.\u201d<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The Department of Health and Human Services did not directly answer questions from <\/span><i><span style=\"font-weight: 400;\">The Transmitter <\/span><\/i><span style=\"font-weight: 400;\">about delays in approval or the rationale behind them.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">A statement attributed to the National Institutes of Health noted that \u201cforecasted funding opportunities are now posted well in advance of application windows, giving the research community adequate time to prepare.\u201d<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Researchers, however, say that after so many programs were canceled last year, they are reluctant to trust such forecasts, which rarely provide a firm timeline or a guarantee that the program will move forward.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u201cSometimes the prediction is accurate, sometimes it\u2019s not,\u201d Chen says. \u201cIf you ask the P.O. [program officer], they don\u2019t know.\u201d<\/span>\r\n\r\n<span style=\"font-weight: 400;\">As with the BRAIN Initiative, the latest round of funding for the National Institute of Mental Health\u2019s Conte Centers program <\/span><a href=\"https:\/\/www.grants.gov\/search-results-detail\/360574\"><span style=\"font-weight: 400;\">was first forecast in August 2025<\/span><\/a><span style=\"font-weight: 400;\">, but the notice of funding <\/span><a href=\"https:\/\/files.simpler.grants.gov\/opportunities\/95d8c541-2ee0-40cc-960c-61b524d2babd\/attachments\/57027f1d-07a5-4cee-82d9-3d37579dff22\/PAR-27-127-Full-Announcement.html\"><span style=\"font-weight: 400;\">was only released this month<\/span><\/a><span style=\"font-weight: 400;\">. That deadline is 15 October.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Under federal law, calls for funding <\/span><a href=\"https:\/\/www.ecfr.gov\/current\/title-2\/subtitle-A\/chapter-II\/part-200\/subpart-C\/section-200.204\"><span style=\"font-weight: 400;\">must be open for a minimum of 30 days<\/span><\/a><span style=\"font-weight: 400;\">.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Ngai says he\u2019s hopeful that he will soon have some exciting proposals for the BRAIN circuits program in his inbox. \u201cThe not-so-good-news is people need to get themselves together quickly to do it,\u201d he says.<\/span>"}]},"_links":{"self":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256565","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/users\/73"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/comments?post=256565"}],"version-history":[{"count":5,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256565\/revisions"}],"predecessor-version":[{"id":256624,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256565\/revisions\/256624"}],"acf:post":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/contributor\/107146"}],"acf:term":[{"embeddable":true,"taxonomy":"post_tag","href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags\/107"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media\/256566"}],"wp:attachment":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media?parent=256565"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/categories?post=256565"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags?post=256565"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}},{"id":256371,"date":"2026-09-17T00:00:21","date_gmt":"2026-09-17T04:00:21","guid":{"rendered":"https:\/\/www.thetransmitter.org\/?p=256371"},"modified":"2026-09-22T11:27:48","modified_gmt":"2026-09-22T15:27:48","slug":"sylvia-fogel-reshaping-u-s-autism-research-strategy","status":"publish","type":"post","link":"https:\/\/www.thetransmitter.org\/spectrum\/sylvia-fogel-reshaping-u-s-autism-research-strategy\/","title":{"rendered":"Sylvia Fogel, reshaping U.S. autism research strategy"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>In a wide-ranging and provocative interview, the chair of the federal Interagency Autism Coordinating Committee shares her views on vaccines, regression, neuroimmune conditions and more.<\/p>\n","protected":false},"author":73,"featured_media":256503,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[152],"tags":[17,40,420,197],"class_list":["post-256371","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-autism","tag-policy","tag-regression","tag-spectrum"],"acf":{"primary_tag":197,"doi_url":"https:\/\/doi.org\/10.53053\/LGRP8878","citation_count":"0","custom_js_library":"","hero_type":"youtube","hero_alt_image":null,"hero_youtube":"o2VMYzDbsBY","hero_video":null,"hero_layout":"landscape","hero_caption":"","hero_by":"","hero_credit":"","hero_bg_color":"tan","authors":[107144],"other_authors":"","related_title":"Explore more from <em>The Transmitter<\/em>","related_hide":false,"related_filter":"latest","related_tag":null,"related_category":null,"related_custom":{"articles":null},"related_custom_wwn":{"articles":null},"newsletter":"","banner_content":"","banner_url":"","apple_article_id":"2e4b8c89-d118-42d5-a5a3-21133bcdbe28","apple_article_revision":"AAAAAAAAAAAAAAAAAAAAAQ==","google_button_text":"","google_btn_bg_color":"","tooltip_text":"","sidebar_related_hide":false,"sidebar_related_title":"related articles","sidebar_related_hide_images":false,"sidebar_related_articles":"","comps":[{"acf_fc_layout":"callout_comp","callout_title":"Editor's note","callout_copy":"Update: Following the publication of this interview, on 18 September 2026, United States Secretary of Health and Human Services Robert F. Kennedy Jr. replaced Sylvia Fogel as chair of the IACC, <i>Reuters<\/i> <a href=\"https:\/\/www.reuters.com\/world\/kennedy-names-new-chair-us-autism-advisory-panel-sources-say-2026-09-18\/\">reports<\/a>, naming John Gaitanis, director of the U.S. National Institute of Child Health and Human Development, as the new chair. Fogel remains on the committee as one of 20 public members, according to <i>Reuters<\/i>.","callout_color":"red"},{"acf_fc_layout":"copy_comp","copy":"<span style=\"font-weight: 400;\">Last month, the panel that advises the U.S. government on autism research funding adopted a new strategic plan. The Interagency Autism Coordinating Committee (IACC) de-emphasized genetics and called for more research on environmental factors and the causes of <\/span><a href=\"https:\/\/www.thetransmitter.org\/spectrum\/rethinking-regression-autism\/\"><span style=\"font-weight: 400;\">regression<\/span><\/a><span style=\"font-weight: 400;\">, among other topics.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">We interviewed IACC chair <\/span><a href=\"https:\/\/connects.catalyst.harvard.edu\/Profiles\/display\/Person\/160752\"><span style=\"font-weight: 400;\">Sylvia Fogel<\/span><\/a><span style=\"font-weight: 400;\">, a psychiatrist and instructor at Harvard Medical School, about her views on autism and priorities for research. In this wide-ranging and provocative conversation, conducted over two sessions, we asked Fogel for her thoughts on vaccines, regression and neuroimmune conditions, such as <\/span><a href=\"https:\/\/www.thetransmitter.org\/spectrum\/how-a-controversial-condition-called-pandas-is-gaining-ground-on-autism\/\"><span style=\"font-weight: 400;\">PANS and PANDAS<\/span><\/a><span style=\"font-weight: 400;\">. We also asked her about the makeup of the <\/span><a href=\"https:\/\/www.thetransmitter.org\/spectrum\/latest-iteration-of-u-s-federal-autism-committee-comes-under-fire\/\"><span style=\"font-weight: 400;\">current IACC committee<\/span><\/a><span style=\"font-weight: 400;\"> and its goals.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u201cWe have open spaces on the committee,\u201d Fogel says. \u201cI hope that we could have some more researchers on the committee.\u201d<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Read the <a href=\"https:\/\/www.thetransmitter.org\/wp-content\/uploads\/2026\/09\/TT-Fogel-IACC-autism-policy-transcript.pdf\" target=\"_blank\" rel=\"noopener\">transcript<\/a>.\u00a0<\/span>\r\n\r\n<i>The video has been edited to combine the <\/i><i>parts of the <\/i><i>two interviews <\/i><i>that discuss related topics <\/i><i>and remove repetitive questions and answers.<\/i>"}]},"_links":{"self":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256371","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/users\/73"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/comments?post=256371"}],"version-history":[{"count":8,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256371\/revisions"}],"predecessor-version":[{"id":256621,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256371\/revisions\/256621"}],"acf:post":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/contributor\/107144"}],"acf:term":[{"embeddable":true,"taxonomy":"post_tag","href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags\/197"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media\/256503"}],"wp:attachment":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media?parent=256371"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/categories?post=256371"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags?post=256371"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}},{"id":256378,"date":"2026-09-16T11:00:16","date_gmt":"2026-09-16T15:00:16","guid":{"rendered":"https:\/\/www.thetransmitter.org\/?p=256378"},"modified":"2026-09-22T11:24:46","modified_gmt":"2026-09-22T15:24:46","slug":"human-brain-organoids-flourish-in-emptied-mouse-cortex","status":"publish","type":"post","link":"https:\/\/www.thetransmitter.org\/spectrum\/human-brain-organoids-flourish-in-emptied-mouse-cortex\/","title":{"rendered":"Human brain organoids flourish in emptied mouse cortex"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>The chimeric mice could help untangle the biology of human brain development or conditions such as autism.<\/p>\n","protected":false},"author":73,"featured_media":256381,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[152],"tags":[17,457,29,322,24,56,157,39,197],"class_list":["post-256378","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-autism","tag-brain","tag-cortex","tag-developmental-neuroscience","tag-mouse-models","tag-neural-circuits","tag-neurodevelopment","tag-organoids","tag-spectrum"],"acf":{"primary_tag":197,"doi_url":"https:\/\/doi.org\/10.53053\/OTCV7043","citation_count":"0","custom_js_library":"","hero_type":"feat_image","hero_alt_image":null,"hero_youtube":"","hero_video":null,"hero_layout":"landscape","hero_caption":"<strong>Long range:<\/strong> Nerve fibers from the human graft (green and red) extend throughout the mouse brain (blue).","hero_by":"S. Pa\u0219ca lab, Stanford University","hero_credit":"","hero_bg_color":"tan","authors":[107153],"other_authors":"","related_title":"Explore more from <em>The Transmitter<\/em>","related_hide":false,"related_filter":"latest","related_tag":null,"related_category":null,"related_custom":{"articles":null},"related_custom_wwn":{"articles":null},"newsletter":"","banner_content":"","banner_url":"","apple_article_id":"9b616efb-b2c9-4b51-8c99-8b0d31c90d5c","apple_article_revision":"AAAAAAAAAAAAAAAAAAAAAQ==","google_button_text":"","google_btn_bg_color":"","tooltip_text":"","sidebar_related_hide":false,"sidebar_related_title":"related articles","sidebar_related_hide_images":false,"sidebar_related_articles":"","comps":[{"acf_fc_layout":"copy_comp","copy":"<span style=\"font-weight: 400;\">Human cortical organoids transplanted into newborn mice integrate into the nervous system and form circuits that support electrical activity, according to a new <a href=\"http:\/\/doi.org\/10.1038\/s41586-026-11032-2\">study<\/a> published today in <\/span><i><span style=\"font-weight: 400;\">Nature. <\/span><\/i><span style=\"font-weight: 400;\">The mice were engineered to lack nearly all of their cerebral cortex, creating space for the human-derived tissue to take hold.\u00a0\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The researchers then used the \u2018xenocortical\u2019 mice to model hypoxia, a state that occurs when brain cells don\u2019t get enough oxygen. When hypoxia occurs prenatally or around the time of birth, it can cause cerebral palsy; it is also associated <\/span><a href=\"https:\/\/doi.org\/10.1002\/aur.3250\"><span style=\"font-weight: 400;\">with autism<\/span><\/a><span style=\"font-weight: 400;\"> and epilepsy.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The transplantation approach could serve as a new tool to study typical development and neurodevelopmental conditions, as well as test potential therapeutics, says <\/span><a href=\"https:\/\/www.med.upenn.edu\/songlab\/current-personnel.html\"><span style=\"font-weight: 400;\">Hongjun Song<\/span><\/a><span style=\"font-weight: 400;\">, professor of neuroscience at the University of Pennsylvania\u2019s Perlman School of Medicine, who was not involved in the study.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u201cNow you have a model, a live model where you can actually test all of this with human cells in live animals,\u201d Song says.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The lack of access to living brain tissue has presented a long-standing barrier to understanding human development. Brain organoids derived from human stem cells have opened up <\/span><a href=\"https:\/\/www.thetransmitter.org\/organoids\/five-year-old-human-brain-organoids-aged-on-schedule\/\"><span style=\"font-weight: 400;\">fresh possibilities<\/span><\/a><span style=\"font-weight: 400;\">, and transplanting the organoids <\/span><a href=\"https:\/\/www.thetransmitter.org\/spectrum\/human-cortical-organoids-forge-functional-circuits-in-rat-brains\/\"><span style=\"font-weight: 400;\">into animals<\/span><\/a><span style=\"font-weight: 400;\"> such as rats can help the human cells mature even further and form more complex circuits. But physical space within the rodents is finite, and the human neurons can struggle to establish themselves.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u201cThey will be outcompeted by mouse cells very quickly,\u201d says <\/span><a href=\"https:\/\/www.thetransmitter.org\/contributor\/sergiu-p-pasca\/\"><span style=\"font-weight: 400;\">Sergiu Pa\u0219ca<\/span><\/a><span style=\"font-weight: 400;\">, professor of psychiatry and behavioral sciences at Stanford University and the study\u2019s senior investigator. \u201cIt\u2019s also very difficult to actually distentangle, to be honest, the effect of the human versus the mouse.\u201d\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">In the new paper, Pa\u0219ca and his team used a knockout strategy to design a mouse model. They deleted ESCO2, a protein that aids in cell division,<\/span> <span style=\"font-weight: 400;\">from cells expressing a marker for the dorsal and medial pallium, the areas of the embryonic forebrain that give rise to the cortex and hippocampus. The team also designed the mice to be immunocompromised so that the animals would not reject the human cells.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The resulting mice were missing 98 percent of their cortex and hippocampus and had a 50 percent decrease in total brain tissue, compared with controls. Even so, the mice exhibited only minor behavioral changes, such as having a more cautious gait.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u201cThese animals are not perfectly normal but also surprisingly functional, much more than we thought they would be,\u201d Pa\u0219ca says.\u00a0<\/span>"},{"acf_fc_layout":"image_comp","aspect_ratio":"inline3-2","title":"","image":256380,"link":"","image_caption":"<strong>Road map:<\/strong> An MRI scan reveals an estimated map of nerve-fiber pathways and directions (green, top to bottom; red, front to back; blue, side to side). ","image_byline":{"by":"S. Pa\u0219ca lab, Stanford University","credit":""}},{"acf_fc_layout":"copy_comp","copy":"[tt_text class='']T[\/tt_text]<span style=\"font-weight: 400;\">he researchers successfully transplanted the human organoids into 25 out of 29 newborn engineered mice. The human-derived tissue proliferated, taking over the space and growing 4.7-fold between two and three months after transplantation. The grafts integrated into the mouse nervous system, and the mice performed similarly to wildtype controls on motor, learning and social tests.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u201cReplacing a substantial portion of an animal brain with human neural tissue represents an impressive technical advance,\u201d <\/span><a href=\"https:\/\/medicine.yale.edu\/lab\/park\/\"><span style=\"font-weight: 400;\">In-Hyun Park<\/span><\/a><span style=\"font-weight: 400;\">, associate professor of genetics and neuroscience at Yale School of Medicine, wrote in an email to <\/span><i><span style=\"font-weight: 400;\">The Transmitter<\/span><\/i><span style=\"font-weight: 400;\">. Park was not involved in the study.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The grafts contained a diverse range of human cortical cell types, including rare von Economo neurons. VENs, which appear in large-brained, social animals, are implicated in some neuropsychiatric conditions and have been challenging to produce in cell culture, the paper says.\u00a0<\/span>\r\n\r\n[tt_sidebar_quote author='<span style=\"font-weight: 400;\">In-Hyun Park<\/span>']<span style=\"font-weight: 400;\">Replacing a substantial portion of an animal brain with human neural tissue represents an impressive technical advance.<\/span>[\/tt_sidebar_quote]\r\n\r\n<span style=\"font-weight: 400;\">The researchers then tracked the calcium dynamics in graft-derived neurons. Large, synchronous bursts occurred every few minutes, correlating with mouth and facial movements. Electrophysiologic signals also matched the bursts and were detected across the electrode, suggesting that the graft forms into a functional neural network, the researchers wrote.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">To test if the mice could be used to study disease, the researchers modeled hypoxic injury, which affects humans more severely than mice. The team exposed xenocortical, cortex-less and control mice to low oxygen for five hours. The xenocortical mice were uniquely impacted, showing trouble maintaining their balance and sustaining a steady gait.\u00a0<\/span>\r\n\r\n[tt_text class='']T[\/tt_text]<span style=\"font-weight: 400;\">he grafted organoids have their own set of limitations, Pa\u0219ca says. The human-derived neurons still develop at their same, slower pace than the mouse cells. The tool so far applies only to the earliest stages of human development and is limited by the lifespan of the mice.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The neurons also aren\u2019t organized in layers, and the organoids lack inhibitory neurons. Variability in how the organoids grow and integrate might make it difficult to answer some questions, says <\/span><a href=\"https:\/\/neurosciences.ucsd.edu\/research\/labs\/gleeson\/index.html\"><span style=\"font-weight: 400;\">Joseph Gleeson<\/span><\/a><span style=\"font-weight: 400;\">, professor of neuroscience at the University of California, San Diego, who was not involved with the work.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u201cIt doesn\u2019t build a new cortex. What it does is it gives a lot of room for these organoids, or the cells in the organoids, to divide and grow and take up residence,\u201d he says. \u201cIt\u2019s the single biggest finding and also the single biggest limitation.\u201d<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u201cThis was about the best you can do at this point,\u201d he adds. \u201cI\u2019m really interested to see where the field goes.\u201d\u00a0\u00a0\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The team also published details on the experiment\u2019s ethical oversight, describing how they consulted with bioethicists and other neuroscientists throughout the project. In addition, Stanford convened a group of legal scholars, patient advocates, ethicists and scientists to oversee and provide feedback on the experiments, as neuroscientists continue to <\/span><a href=\"https:\/\/www.thetransmitter.org\/organoids\/what-is-the-future-of-organoid-and-assembloid-regulation\"><span style=\"font-weight: 400;\">grapple with the ethics<\/span><\/a><span style=\"font-weight: 400;\"> of creating increasingly sophisticated human brain organoids.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Meanwhile, the model could help investigate both environmental injuries and genetic conditions. \u201cEvery time you have somebody with a genetic mutation, you can either induce it in control cells, or you can take that patient\u2019s cells and transplant them,\u201d Pa\u0219ca says.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The approach is also apt to answer basic questions about how human circuits form, he adds. \u201cWhat makes human circuits unique? Or primate circuits so unique?\u201d he says. \u201cHow are they processing information very early in development?\u201d\u00a0<\/span>"}]},"_links":{"self":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256378","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/users\/73"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/comments?post=256378"}],"version-history":[{"count":9,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256378\/revisions"}],"predecessor-version":[{"id":256620,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256378\/revisions\/256620"}],"acf:post":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/contributor\/107153"}],"acf:term":[{"embeddable":true,"taxonomy":"post_tag","href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags\/197"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media\/256381"}],"wp:attachment":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media?parent=256378"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/categories?post=256378"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags?post=256378"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}},{"id":256295,"date":"2026-09-16T00:00:49","date_gmt":"2026-09-16T04:00:49","guid":{"rendered":"https:\/\/www.thetransmitter.org\/?p=256295"},"modified":"2026-09-22T11:20:44","modified_gmt":"2026-09-22T15:20:44","slug":"what-if-hegel-were-a-neuroscientist","status":"publish","type":"post","link":"https:\/\/www.thetransmitter.org\/brain-inspired\/what-if-hegel-were-a-neuroscientist\/","title":{"rendered":"What if Hegel were a neuroscientist?"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>Andrea Gambarotto shares what Hegel and enactivism have in common: an agency-first approach to understanding minds and brains.<\/p>\n","protected":false},"author":73,"featured_media":256302,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[156],"tags":[613,147],"class_list":["post-256295","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-podcasts","tag-brain-inspired","tag-philosophy"],"acf":{"primary_tag":613,"doi_url":"https:\/\/doi.org\/10.53053\/MVBN2998","citation_count":"0","custom_js_library":"","hero_type":"youtube","hero_alt_image":null,"hero_youtube":"26itPsS3smw","hero_video":null,"hero_layout":"landscape","hero_caption":"","hero_by":"","hero_credit":"","hero_bg_color":"tan","authors":[211244],"other_authors":"","related_title":"Explore more from <em>The Transmitter<\/em>","related_hide":false,"related_filter":"latest","related_tag":null,"related_category":null,"related_custom":{"articles":null},"related_custom_wwn":{"articles":null},"newsletter":"","banner_content":"","banner_url":"","apple_article_id":"0a19a717-aa35-400b-a3a0-e8c348665be3","apple_article_revision":"AAAAAAAAAAAAAAAAAAAAAA==","google_button_text":"","google_btn_bg_color":"","tooltip_text":"","sidebar_related_hide":false,"sidebar_related_title":"related articles","sidebar_related_hide_images":false,"sidebar_related_articles":"","comps":[{"acf_fc_layout":"copy_comp","copy":"<span style=\"font-weight: 400;\">In this \"Brain Inspired\" episode, Paul Middlebrooks talks with<\/span> <a href=\"https:\/\/www.uni.lu\/fhse-en\/people\/andrea-gambarotto\/\"><span style=\"font-weight: 400;\">Andrea Gambarotto<\/span><\/a><span style=\"font-weight: 400;\">, a postdoctoral philosopher and researcher at the University of Luxembourg. Gambarotto discusses how German philosopher Georg Wilhelm Friedrich Hegel and enactivism flip neuroscience on its head, suggesting we use minds to explain the brain, not brains to explain the mind.<\/span>"}]},"_links":{"self":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256295","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/users\/73"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/comments?post=256295"}],"version-history":[{"count":4,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256295\/revisions"}],"predecessor-version":[{"id":256616,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256295\/revisions\/256616"}],"acf:post":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/contributor\/211244"}],"acf:term":[{"embeddable":true,"taxonomy":"post_tag","href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags\/613"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media\/256302"}],"wp:attachment":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media?parent=256295"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/categories?post=256295"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags?post=256295"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}},{"id":256284,"date":"2026-09-16T00:00:06","date_gmt":"2026-09-16T04:00:06","guid":{"rendered":"https:\/\/www.thetransmitter.org\/?p=256284"},"modified":"2026-09-22T13:48:27","modified_gmt":"2026-09-22T17:48:27","slug":"this-paper-changed-my-life-transformative-work-in-addiction-neuroscience","status":"publish","type":"post","link":"https:\/\/www.thetransmitter.org\/this-paper-changed-my-life\/this-paper-changed-my-life-transformative-work-in-addiction-neuroscience\/","title":{"rendered":"This paper changed my life: Transformative work in addiction neuroscience"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>A 2011 <em>Nature<\/em> study found that loss of a nicotinic receptor subunit leads to increased nicotine intake in mice. The work set the standard for how to functionally validate genetic association study findings in neuroscience.<\/p>\n","protected":false},"author":73,"featured_media":256288,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[139],"tags":[262,27,251,593],"class_list":["post-256284","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-perspectives","tag-addiction","tag-audio-research-news","tag-molecular-neuroscience","tag-this-paper-changed-my-life"],"acf":{"primary_tag":593,"doi_url":"https:\/\/doi.org\/10.53053\/BEKP2034","citation_count":"0","custom_js_library":"","hero_type":"feat_image","hero_alt_image":null,"hero_youtube":"","hero_video":null,"hero_layout":"landscape","hero_caption":"<strong>Beyond correlation:<\/strong> This work identified a concrete mechanism through which genetic risk influences drug-taking behavior.","hero_by":"Illustration by","hero_credit":238774,"hero_bg_color":"tan","authors":[255674],"other_authors":"","related_title":"Explore more from <em>The Transmitter<\/em>","related_hide":false,"related_filter":"latest","related_tag":null,"related_category":null,"related_custom":{"articles":null},"related_custom_wwn":{"articles":null},"newsletter":"","banner_content":"","banner_url":"","apple_article_id":"eeb5556a-87ab-4224-bbf8-2a131af55b9e","apple_article_revision":"AAAAAAAAAAAAAAAAAAAAAA==","google_button_text":"","google_btn_bg_color":"","tooltip_text":"","sidebar_related_hide":false,"sidebar_related_title":"related articles","sidebar_related_hide_images":false,"sidebar_related_articles":"","comps":[{"acf_fc_layout":"audio_comp","audio_title":"LISTEN TO THIS STORY:","audio":256636,"apple_link":"","spotify_link":"","google_link":""},{"acf_fc_layout":"callout_comp","callout_title":"","callout_copy":"<em>In the \u201c<a href=\"https:\/\/www.thetransmitter.org\/this-paper-changed-my-life\/\">This paper changed my life<\/a>\u201d series, neuroscientists respond to a set of questions to reflect on a paper that profoundly influenced their career and how they think about their research.<\/em>","callout_color":"red"},{"acf_fc_layout":"copy_comp","copy":"<i><span style=\"font-weight: 400;\">Answers have been edited for length and clarity.<\/span><\/i>\r\n\r\n<b>What paper changed your life?<\/b>\r\n\r\n<a href=\"https:\/\/doi.org\/10.1038\/nature09797\"><span style=\"font-weight: 400;\">Habenular alpha-5 nicotinic receptor subunit signalling controls nicotine intake<\/span><\/a><span style=\"font-weight: 400;\">. Fowler C.D., Lu Q., Johnson P.M., Marks M.J., Kenny P.J. <\/span><i><span style=\"font-weight: 400;\">Nature<\/span><\/i><span style=\"font-weight: 400;\"> (2011)<\/span>\r\n\r\n<span style=\"font-weight: 400;\">This paper provided one of the clearest demonstrations of how researchers can use genome-wide association studies (GWAS) to pinpoint genetic risk signals and better understand causal neurobiological mechanisms.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">In 2008, CHRNA5, a gene that encodes the alpha-5 nicotinic receptor subunit, started popping up in a few GWAS that were searching for genes linked to nicotine dependence and smoking. But these studies could only tell us that a particular genetic variant was associated with smoking. They could not tell us whether\u00a0CHRNA5\u00a0was actually causing differences in nicotine intake, or how it might do so in the brain.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">That\u2019s where mice come in. <\/span><a href=\"https:\/\/www.faculty.uci.edu\/profile\/?facultyId=6055\"><span style=\"font-weight: 400;\">Christie Fowler<\/span><\/a><span style=\"font-weight: 400;\"> and her colleagues took this human genetic finding and asked a much more fundamental question: What happens if you remove\u00a0the mouse homolog of\u00a0CHRNA5? They found that mice lacking the alpha-5 nicotinic receptor subunit consumed dramatically more nicotine and, unlike normal mice, failed to titrate their intake as the available nicotine dose increased.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">They then went even further, showing that restoring\u00a0CHRNA5\u00a0specifically in the medial habenula could rescue the phenotype and identifying the habenulo-interpeduncular pathway as the circuit that generates an aversive signal to limit nicotine consumption. By restoring gene expression in this specific circuit, they were able to rescue the phenotype\u2014to stop animals from self-administering nicotine ad infinitum\u2014establishing a direct gene-to-circuit-to-behavior link.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">This work was transformative for addiction neuroscience because it moved beyond correlation and identified a concrete mechanism through which genetic risk influences drug-taking behavior. More broadly, it set a standard for how to functionally validate GWAS findings in neuroscience.<\/span>\r\n\r\n<b>When did you first encounter this paper? What were you working on at the time?<\/b>\r\n\r\n<span style=\"font-weight: 400;\">I first read this paper as a Ph.D. student when it was published in 2011\u2014and presented it to my lab in a journal club. At the time, I was studying the effects of nicotine on metabolism in the brain and thinking about how pharmacological processes influence addiction-related behaviors. I was also trying to understand how individual differences in vulnerability emerge. This paper provided a completely different approach than what I had been exposed to. Rather than starting with the effects of nicotine on the brain and resulting behavior, Fowler and her colleagues started with a human genetic association and worked in the opposite direction, from a genetic variant to a specific gene, then to a brain circuit, and, ultimately, to behavior. That idea of connecting human genetic variation to a causal neurobiological mechanism was completely new to me, and it fundamentally changed how I think about approaching questions in addiction neuroscience to this day.<\/span>\r\n\r\n[tt_sidebar_quote author='']<span style=\"font-weight: 400;\">This study showed what it looks like when you find that signal and use it to uncover a biological truth. It made the idea of genetic risk concrete by linking it to a specific receptor, circuit and behavioral outcome.<\/span>[\/tt_sidebar_quote]\r\n\r\n<b>Why is this paper meaningful to you?<\/b>\r\n\r\n<span style=\"font-weight: 400;\">This paper captured something that felt almost impossible at the time. GWAS produce many signals, and finding one that is biologically meaningful can feel like searching for a needle in a haystack. This study showed what it looks like when you find that signal and use it to uncover a biological truth. It made the idea of genetic risk concrete by linking it to a specific receptor, circuit and behavioral outcome.<\/span>\r\n\r\n<b>How did this research change how you think about neuroscience and influence your scientific trajectory?<\/b>\r\n\r\n<span style=\"font-weight: 400;\">This research fundamentally changed how I think about bridging levels of analysis in neuroscience. It showed that it is possible to connect genes to circuits to behavior in a rigorous and causal way. When I first read it, I remember thinking that I wanted to do the same kind of work someday. That idea has directly influenced my lab\u2019s approach, especially in our efforts to take GWAS hits related to cannabis use, such as CADM2<\/span><i><span style=\"font-weight: 400;\">,<\/span><\/i><span style=\"font-weight: 400;\"> and identify their <\/span><a href=\"https:\/\/doi.org\/10.1038\/s41398-023-02453-y\"><span style=\"font-weight: 400;\">underlying neurobiological mechanisms<\/span><\/a><span style=\"font-weight: 400;\">. In many ways, this paper helped define the kind of science I currently pursue as an independent investigator.<\/span>\r\n\r\n<b>Is there an underappreciated aspect of this paper you think other neuroscientists should know about?<\/b>\r\n\r\n<span style=\"font-weight: 400;\">One underappreciated aspect is how forward-thinking the study was. For a long time, I thought that the authors initiated this study based on the initial GWAS findings (between 2008 and 2010). I later learned that much of the experimental work had already been completed when the key human genetic associations emerged. I found this out in 2023, when I had dinner with <\/span><a href=\"https:\/\/profiles.icahn.mssm.edu\/paul-j-kenny\"><span style=\"font-weight: 400;\">Paul Kenny<\/span><\/a><span style=\"font-weight: 400;\"> and Christie Fowler after Paul gave the plenary lecture at the Society for Research on Nicotine and Tobacco meeting.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">They told me that their work on alpha-5 nicotinic receptors and the habenulo-interpeduncular pathway had already been underway, based on their understanding of the basic biology of nicotinic acetylcholine receptors and the availability of transgenic animals in which they could manipulate the alpha-5 receptor subunit. In other words, they were not simply starting with a GWAS hit and designing an experiment to test it. Rather, they had developed the experimental systems and biological understanding that allowed them to recognize the significance of the GWAS findings when they emerged.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">This paper also highlights that successful interpretation of GWAS findings often depends on having the right experimental systems in place, in this case transgenic animals, targeted manipulation of gene expression and a strong understanding of the underlying nicotinic acetylcholine receptor biology and the habenulo-interpeduncular circuit.<\/span>\r\n\r\n<b>What new progress has been made since this paper was published?<\/b>\r\n\r\n<span style=\"font-weight: 400;\">Since this study, there has been a growing emphasis on functionally validating GWAS hits across neuroscience. Advances in genetic tools, circuit manipulation and multi-omics approaches have made it more feasible to move from association to mechanism.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">At the same time, the number of GWAS findings has increased dramatically, making it even more important to identify which signals are biologically meaningful. Despite this progress, relatively few studies achieve the same level of mechanistic clarity. This is why the paper remains influential and continues to inspire efforts, including in my own lab, to translate genetic findings into actionable neurobiology.<\/span>"}]},"_links":{"self":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256284","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/users\/73"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/comments?post=256284"}],"version-history":[{"count":10,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256284\/revisions"}],"predecessor-version":[{"id":256640,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256284\/revisions\/256640"}],"acf:post":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/contributor\/255674"},{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/contributor\/238774"}],"acf:term":[{"embeddable":true,"taxonomy":"post_tag","href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags\/593"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media\/256288"}],"wp:attachment":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media?parent=256284"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/categories?post=256284"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags?post=256284"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}},{"id":256203,"date":"2026-09-15T00:00:52","date_gmt":"2026-09-15T04:00:52","guid":{"rendered":"https:\/\/www.thetransmitter.org\/?p=256203"},"modified":"2026-09-15T11:12:41","modified_gmt":"2026-09-15T15:12:41","slug":"additional-data-suggest-changes-in-diagnostics-underlie-increases-in-autism-diagnoses-and-more","status":"publish","type":"post","link":"https:\/\/www.thetransmitter.org\/spectrum\/additional-data-suggest-changes-in-diagnostics-underlie-increases-in-autism-diagnoses-and-more\/","title":{"rendered":"Additional data suggest changes in diagnostics underlie increases in autism diagnoses, and more"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>Here is a roundup of autism-related news and research spotted around the web for the week of 14 September.<\/p>\n","protected":false},"author":73,"featured_media":256205,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[152],"tags":[17,207,197,196],"class_list":["post-256203","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-autism","tag-science-and-society","tag-spectrum","tag-spotted"],"acf":{"primary_tag":197,"doi_url":"https:\/\/doi.org\/10.53053\/FVBD5123","citation_count":"0","custom_js_library":"","hero_type":"alt_image","hero_alt_image":"","hero_youtube":"","hero_video":null,"hero_layout":"full","hero_caption":"","hero_by":"","hero_credit":"","hero_bg_color":"none","authors":[107484],"other_authors":"","related_title":"Explore more from <em>The Transmitter<\/em>","related_hide":false,"related_filter":"latest","related_tag":null,"related_category":null,"related_custom":{"articles":null},"related_custom_wwn":{"articles":null},"newsletter":"","banner_content":"","banner_url":"","apple_article_id":"60d3d85b-17dc-4db8-ae63-2b4ce86c53f2","apple_article_revision":"AAAAAAAAAAAAAAAAAAAAAA==","google_button_text":"","google_btn_bg_color":"","tooltip_text":"","sidebar_related_hide":false,"sidebar_related_title":"related articles","sidebar_related_hide_images":false,"sidebar_related_articles":"","comps":[{"acf_fc_layout":"copy_comp","copy":"<b>Loose links:<\/b><span style=\"font-weight: 400;\"> Associations between various early-life factors and later-life diagnoses of autism or attention-deficit\/hyperactivity disorder appear to be weakening, according to a new <\/span><a href=\"https:\/\/doi.org\/10.1001\/jamapsychiatry.2026.2722\"><span style=\"font-weight: 400;\">study<\/span><\/a><span style=\"font-weight: 400;\">. Children diagnosed with either condition differ from children without these conditions on such factors as birth weight and household income. But an analysis of records from a Danish registry revealed that these differences diminished over the decade studied: 2012 to 2022. The findings suggest that the increase in autism and ADHD prevalence reflect changes in diagnostic practices and specialized health services.<\/span>\r\n\r\n<b>Autism research spotted this week:<\/b>\r\n<ul>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u201cLong-read proteogenomic atlas of human neuronal differentiation reveals isoform diversity informing neurodevelopmental risk mechanisms\u201d <\/span><a href=\"https:\/\/doi.org\/10.1038\/s41467-026-76675-1\"><i><span style=\"font-weight: 400;\">Nature Communications<\/span><\/i><\/a><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u201cDe novo structural variants in autism spectrum disorder disrupt distal regulatory interactions of neuronal genes\u201d <\/span><a href=\"https:\/\/doi.org\/10.1101\/gr.280394.124\"><i><span style=\"font-weight: 400;\">Genome Research<\/span><\/i><\/a><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u201cAutism-risk gene mutations convergently disrupt sexually dimorphic oxytocin circuits to lower social engagement\u201d <\/span><a href=\"https:\/\/doi.org\/10.64898\/2026.08.27.747579\"><span style=\"font-weight: 400;\">bioRxiv<\/span><\/a><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u201cClinical deep sequencing to diagnose pathogenic mosaic variants in malformations of cortical development and epilepsy\u201d <\/span><span style=\"font-weight: 400;\"><a href=\"https:\/\/doi.org\/10.64898\/2026.09.01.26361943\">medRxiv<\/a>\r\n<\/span>See also: \u201c<a href=\"https:\/\/www.thetransmitter.org\/spectrum\/patchwork-mutations-present-a-new-frontier-for-autism-research\/\">Patchwork mutations present a new frontier for autism research<\/a>\u201d<\/li>\r\n<\/ul>"},{"acf_fc_layout":"image_comp","aspect_ratio":"inline","title":"","image":256206,"link":"","image_caption":"<strong>Deep sequencing:<\/strong> MRI images show malformations of cortical development (circled regions), and genetic testing of brain tissue revealed mosaic variants in these 10 people.","image_byline":{"by":"","credit":""}},{"acf_fc_layout":"copy_comp","copy":"<ul>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u201cLoss of FMRP leads to translationally relevant functional connectivity differences in a rat model of fragile X syndrome\u201d <\/span><a href=\"https:\/\/doi.org\/10.64898\/2026.08.28.747531\"><span style=\"font-weight: 400;\">bioRxiv<\/span><\/a><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u201cERK-dependent hyperexcitability of BLA neurons projecting to dCA3 underlies social dysfunction in a male mouse model of fragile X syndrome\u201d <\/span><a href=\"https:\/\/doi.org\/10.1016\/j.ebiom.2026.106478\"><i><span style=\"font-weight: 400;\">eBioMedicine<\/span><\/i><\/a><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u201cSystematic CRISPRi perturbation of 1,408 autism risk genes maps multilevel transcriptional convergence in human cortical neurons\u201d <\/span><a href=\"https:\/\/doi.org\/10.64898\/2026.09.02.748925\"><span style=\"font-weight: 400;\">bioRxiv<\/span><\/a><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u201cLongitudinal characterization of giant ANK2-depleted monkeys suggests neurodevelopmental-disorder-like phenotypes\u201d <\/span><a href=\"https:\/\/doi.org\/10.34133\/research.1424\"><i><span style=\"font-weight: 400;\">Research<\/span><\/i><\/a><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u201cUltragenyx drug to treat Angelman syndrome, a rare disease, fails late-stage trial\u201d <\/span><i><span style=\"font-weight: 400;\"><a href=\"https:\/\/www.statnews.com\/2026\/09\/02\/ultragenyx-drug-angelman-syndrome-clinical-trial\/\">STAT<\/a>\r\n<\/span><\/i>See also: \u201c<a href=\"https:\/\/www.thetransmitter.org\/spectrum\/what-next-for-angelman\/\">What next for Angelman?<\/a>\u201d<\/li>\r\n<\/ul>"}]},"_links":{"self":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256203","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/users\/73"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/comments?post=256203"}],"version-history":[{"count":4,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256203\/revisions"}],"predecessor-version":[{"id":256367,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256203\/revisions\/256367"}],"acf:post":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/contributor\/107484"}],"acf:term":[{"embeddable":true,"taxonomy":"post_tag","href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags\/197"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media\/256205"}],"wp:attachment":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media?parent=256203"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/categories?post=256203"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags?post=256203"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}},{"id":256232,"date":"2026-09-15T00:00:38","date_gmt":"2026-09-15T04:00:38","guid":{"rendered":"https:\/\/www.thetransmitter.org\/?p=256232"},"modified":"2026-09-22T13:39:28","modified_gmt":"2026-09-22T17:39:28","slug":"building-brain-computer-interfaces-at-a-neurotech-company","status":"publish","type":"post","link":"https:\/\/www.thetransmitter.org\/frameshift\/building-brain-computer-interfaces-at-a-neurotech-company\/","title":{"rendered":"Building brain-computer interfaces at a neurotech company"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>At Blackrock Neurotech, Spencer Kellis develops implantable devices that help people with brain and spinal cord conditions communicate, move and more.<\/p>\n","protected":false},"author":73,"featured_media":256249,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[995],"tags":[27,170,940,1091],"class_list":["post-256232","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-qa","tag-audio-research-news","tag-craft-and-careers","tag-early-career-researchers","tag-frameshift"],"acf":{"primary_tag":1091,"doi_url":"https:\/\/doi.org\/10.53053\/JIDW4956","citation_count":"0","custom_js_library":"","hero_type":"feat_image","hero_alt_image":null,"hero_youtube":"","hero_video":null,"hero_layout":"landscape","hero_caption":"<strong>Through the pipeline:<\/strong> In his role, Spencer Kellis regularly meets with team members involved in preclinical testing of brain-computer interfaces, clinical trials and regulatory processing.","hero_by":"Illustration by","hero_credit":201665,"hero_bg_color":"tan","authors":[107552],"other_authors":"","related_title":"Explore more from <em>The Transmitter<\/em>","related_hide":false,"related_filter":"latest","related_tag":null,"related_category":null,"related_custom":{"articles":null},"related_custom_wwn":{"articles":null},"newsletter":"","banner_content":"","banner_url":"","apple_article_id":"ebe3f053-24e5-445d-b6b0-93a5d4650d7a","apple_article_revision":"AAAAAAAAAAAAAAAAAAAAAQ==","google_button_text":"","google_btn_bg_color":"","tooltip_text":"","sidebar_related_hide":false,"sidebar_related_title":"related articles","sidebar_related_hide_images":false,"sidebar_related_articles":"","comps":[{"acf_fc_layout":"audio_comp","audio_title":"LISTEN TO THIS STORY:","audio":256632,"apple_link":"","spotify_link":"","google_link":""},{"acf_fc_layout":"callout_comp","callout_title":"","callout_copy":"In <a href=\"https:\/\/www.thetransmitter.org\/frameshift\/\">Frameshift<\/a>, neuroscientists with careers outside the lab discuss their work and how they made the transition.","callout_color":"red"},{"acf_fc_layout":"copy_comp","copy":"<span style=\"font-weight: 400;\">Spencer Kellis started his Ph.D. designing microprocessors like the ones that run our computers and phones. Now, at <\/span><a href=\"https:\/\/blackrockneurotech.com\/\"><span style=\"font-weight: 400;\">Blackrock Neurotech<\/span><\/a><span style=\"font-weight: 400;\">, he leads a team that develops brain-computer interface (BCI) tools to help people with brain and spinal cord injuries or conditions gain independence.\u00a0<\/span>\r\n\r\n<i><span style=\"font-weight: 400;\">This interview has been lightly edited for length and clarity.<\/span><\/i>\r\n\r\n<b><i>The Transmitter<\/i><\/b><b>: What do you do at Blackrock?<\/b>\r\n\r\n<b><a href=\"https:\/\/keck.usc.edu\/faculty-search\/spencer-sterling-kellis\/\">Spencer Kellis<\/a>: <\/b><span style=\"font-weight: 400;\">I lead the applications group in the BCI department. The group consists of software, clinical neuroscience and data science teams, and the work spans everything from neuroscience research with academic partners all the way through developing software platforms and algorithms for our BCI systems.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Most days start with 15-minute calls in which I check in with my team and identify any blocking issues or accomplishments from the previous day. I also have weekly one-on-one meetings to discuss everyone\u2019s work and career development more generally. And I meet regularly with leadership teams across BCI and the rest of Blackrock. Those meetings are critical because BCIs are systems made up of many components. There may be teams working on electrodes, algorithms, user interface or software; and other teams running pre-clinical testing, managing clinical trials and regulatory processes, and mapping out business strategy. To build an accessible BCI and get it to market, all these teams have to work closely together. It\u2019s like the old analogy of drilling a tunnel from two sides of a mountain (except in this case, more like six or seven sides): They all better meet in the middle or it\u2019s not much of a tunnel.<\/span>\r\n\r\n<b>TT: What do BCI systems do?<\/b>\r\n\r\n<b>SK: <\/b><span style=\"font-weight: 400;\">Ultimately, it\u2019s about translating a person\u2019s intent into action. Our systems use small electrode arrays implanted in the cortex to record neural activity and decode those signals to understand what someone is trying to do. The system can then initiate the desired action, whether it\u2019s moving a cursor on a screen or a robotic arm or generating speech. It's also possible to stimulate the brain to create sensation\u2014the interface can work in both directions.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Researchers at the University of California, Davis recently <\/span><a href=\"https:\/\/www.nature.com\/articles\/s41591-026-04414-6\"><span style=\"font-weight: 400;\">used our technology to decode<\/span><\/a><span style=\"font-weight: 400;\"> the attempted speech of <\/span><a href=\"https:\/\/www.nytimes.com\/2024\/08\/14\/health\/als-ai-brain-implants.html\"><span style=\"font-weight: 400;\">Casey Harrell<\/span><\/a><span style=\"font-weight: 400;\">, who has ALS, restoring conversational communication using a synthesized version of his own voice. And at the Feinstein Institutes for Medical Research, researchers have used it as part of a double neural bypass to help restore movement and sensation following spinal cord injury. The longest continuously implanted research participant using our technology has had his BCI for more than 10 years.<\/span>\r\n\r\n<b>TT: It sounds like a mix of neuroscience and electrical engineering.<\/b>\r\n\r\n<b>SK: <\/b><span style=\"font-weight: 400;\">You know, I've never taken a neuroscience course ever in my life, even though all my jobs have been in neuroscience.\u00a0<\/span>\r\n\r\n<b>TT: How did you get into neuroscience without ever having taken a neuroscience course?<\/b>\r\n\r\n<b>SK:<\/b><span style=\"font-weight: 400;\"> I did my Ph.D. at the University of Utah in VLSI\u2014<\/span><span style=\"font-weight: 400;\">v<\/span><span style=\"font-weight: 400;\">ery-large-scale integration\u2014which is all about integrated circuits. The lab I joined was part of a larger research group funded by the National Science Foundation to build a wireless implantable cochlear prosthesis. Once that prototype was done, the group decided they wanted to build something for the brain. This was back in 2009 or 2010, and nobody in my lab knew anything about the brain or what a system implanted in the brain should be able to do. There was a company nearby doing brain implants called Cyberkinetics, which is now Blackrock, and I got an internship there for some experience. Through the internship, I met a neuroscience professor at the University of Utah and ended up starting a project with him during my Ph.D. on micro-EEGs\u2014fine microwires that record field potentials at the surface of the brain.\u00a0<\/span>\r\n\r\n<b>TT: That sounds like some immersive neuroscience training!<\/b>\r\n\r\n<b>SK:<\/b><span style=\"font-weight: 400;\"> I remember naively thinking that neuroscience must be pretty easy; you just have to memorize the different parts of the brain and what they do. I didn\u2019t appreciate the depth of critical thinking and experimental design required to do neuroscience well and was confronted with that quickly when I got to the California Institute of Technology for my postdoctoral work and joined a hardcore neuroscience lab.\u00a0<\/span>\r\n\r\n<b>TT: What led you to Caltech?<\/b>\r\n\r\n[tt_sidebar_quote author='']<span style=\"font-weight: 400;\">If you're just a resume, there's a much smaller chance I'll understand who you are and what kind of possibilities you bring.<\/span>[\/tt_sidebar_quote]\r\n\r\n<b>SK:<\/b><span style=\"font-weight: 400;\"> When I finished my Ph.D., the professor I worked with on micro-EEGs got me an interview with <\/span><a href=\"https:\/\/www.bbe.caltech.edu\/people\/richard-a-andersen\"><span style=\"font-weight: 400;\">Richard Anderson<\/span><\/a><span style=\"font-weight: 400;\"> at Caltech. I got the position, and the very first thing I had to do was write an investigative device exemption application to the Food and Drug Administration (FDA) to run a clinical study of an implantable electrode array for quadriplegic individuals. It's kind of a wild thing in retrospect that a brand-new postdoc with zero experience whatsoever was writing an application to the FDA. I had a ton of help, though. The application got approved, and we moved onto recruitment. I spent the next 10 years\u20145 as a postdoc and 5 as a staff scientist\u2014running those clinical studies.<\/span>\r\n\r\n<b>TT: What was it like working with patients?<\/b>\r\n\r\n<b>SK:<\/b><span style=\"font-weight: 400;\"> The first participant we implanted ended up becoming a dear friend. He was a spinal cord-injured patient. He grew up in inner-city Los Angeles, a very poor immigrant from El Salvador and a gang member. I\u2019m so grateful for the coincidence of the two of us getting put together in this very unique experience. Sadly, he passed away about two years ago, which was really tough. I\u2019m still friends with his kids and went to his daughter's birthday party two weeks ago. It was a wonderful experience for me, getting to know him. And I developed a much deeper understanding of what the science meant for a person who might actually use it.<\/span>\r\n\r\n<b>TT: Why did you decide to move to industry?<\/b>\r\n\r\n<b>SK: <\/b><span style=\"font-weight: 400;\">In 2021, I got a call from a friend who invited me to interview with one of the BCI companies. I got the job offer, but I was pretty happy to continue in academia\u2014although I didn't really want to be a tenure-track faculty member. I needed to give an answer to this company, though, so I called up a friend from my Ph.D. lab who had been at Blackrock for 10 years. I said, \u201cHey, I've got this job offer, and I'm trying to figure out what to do. Any advice?\u201d And he said, \u201cActually, I'm trying to hire somebody like that. Why don't you come work for Blackrock instead?\u201d They were willing to let me keep an academic position and travel back and forth between Salt Lake City and Los Angeles, so all the pieces just kind of fell together.<\/span>\r\n\r\n<b>TT: What is your academic appointment?<\/b>\r\n\r\n<b>SK:<\/b><span style=\"font-weight: 400;\"> My appointment is actually at the University of Southern California in the Department of Neurosurgery. I work for them one day a week, technically, though I spend every other week in L.A. I work closely with a neurosurgeon, <\/span><a href=\"https:\/\/www.keckmedicine.org\/provider\/brian-lee\/\"><span style=\"font-weight: 400;\">Brian Lee<\/span><\/a><span style=\"font-weight: 400;\">, who does a lot of their epilepsy surgeries. We\u2019re currently looking at how seizure activity spreads through epileptogenic tissue, again using brain implants. This research is totally unrelated to my work at Blackrock.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">It\u2019s nice to be grounded in an academic community. Over the years, I've taught a little bit, joined some committees, reviewed courses for the medical school, and things like that. It's also very useful to have an academic connection\u2014almost like a credential to talk to people in that world.\u00a0<\/span>\r\n\r\n<b>TT: What advice do you have for scientists looking to move into industry?<\/b>\r\n\r\n<b>SK:<\/b><span style=\"font-weight: 400;\"> It seems people are a lot more cognizant today than I was of paths outside of academia, which is great. I think internships are a wonderful opportunity to explore what\u2019s out there, and I highly recommend them. The challenge is that there probably aren't enough internships available for all the people that would like one\u2014we get hundreds of applications for the positions we open and can only take a few people. But it's worth exploring, and it's important to reach out and talk to somebody as opposed to just submitting your resume. That\u2019s something I appreciate a lot more now, being on the hiring side of things. If I know who you are, then I\u2019ll think about you when I'm deciding who to hire. If you're just a resume, there's a much smaller chance I'll understand what kind of possibilities you bring.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Also, don\u2019t be afraid to reach out to people to ask them about their roles and how they got them. I'm quite introverted, and it's not in my nature to cold call or email people. But again, being on the other side of that, I've appreciated when people have reached out.<\/span>"}]},"_links":{"self":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256232","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/users\/73"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/comments?post=256232"}],"version-history":[{"count":10,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256232\/revisions"}],"predecessor-version":[{"id":256635,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256232\/revisions\/256635"}],"acf:post":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/contributor\/107552"},{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/contributor\/201665"}],"acf:term":[{"embeddable":true,"taxonomy":"post_tag","href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags\/1091"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media\/256249"}],"wp:attachment":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media?parent=256232"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/categories?post=256232"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags?post=256232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}},{"id":256161,"date":"2026-09-15T00:00:14","date_gmt":"2026-09-15T04:00:14","guid":{"rendered":"https:\/\/www.thetransmitter.org\/?p=256161"},"modified":"2026-09-15T11:19:34","modified_gmt":"2026-09-15T15:19:34","slug":"high-risk-high-reward-how-early-career-neuroscientists-view-their-future","status":"publish","type":"post","link":"https:\/\/www.thetransmitter.org\/science-and-society\/high-risk-high-reward-how-early-career-neuroscientists-view-their-future\/","title":{"rendered":"\u2018High risk, high reward\u2019: How early-career neuroscientists view their future"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p><em>The Transmitter<\/em> and Neuromatch surveyed more than 300 early-career neuroscientists to better understand their unique challenges, career aspirations and support needs.<\/p>\n","protected":false},"author":73,"featured_media":256263,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[152],"tags":[141,38,940,207],"class_list":["post-256161","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-academia","tag-community","tag-early-career-researchers","tag-science-and-society"],"acf":{"primary_tag":207,"doi_url":"https:\/\/doi.org\/10.53053\/VIIE3927","citation_count":"0","custom_js_library":"","hero_type":"video","hero_alt_image":null,"hero_youtube":"","hero_video":256277,"hero_layout":"landscape","hero_caption":"<strong>Navigating networks:<\/strong> Survey results show the shifting priorities of early-career researchers finding their way through a complicated landscape in neuroscience.","hero_by":"Illustration by","hero_credit":218881,"hero_bg_color":"tan","authors":[221221],"other_authors":"","related_title":"Explore more from <em>The Transmitter<\/em>","related_hide":false,"related_filter":"latest","related_tag":null,"related_category":null,"related_custom":{"articles":null},"related_custom_wwn":{"articles":null},"newsletter":"","banner_content":"","banner_url":"","apple_article_id":"8407189c-bc0c-46ba-838d-f9aac32f8f7b","apple_article_revision":"AAAAAAAAAAAAAAAAAAAAAA==","google_button_text":"","google_btn_bg_color":"","tooltip_text":"","sidebar_related_hide":false,"sidebar_related_title":"related articles","sidebar_related_hide_images":false,"sidebar_related_articles":"","comps":[{"acf_fc_layout":"copy_comp","copy":"<em>Graphs and data provided by <span style=\"font-weight: 400;\">Francisco Rivera Rosario and Viviana Greco.<\/span><\/em>\r\n\r\n<span style=\"font-weight: 400;\">Neuroscience students at all levels are still interested in pursuing academic careers, according to a survey conducted by <\/span><i><span style=\"font-weight: 400;\">The Transmitter <\/span><\/i><span style=\"font-weight: 400;\">and <\/span><a href=\"https:\/\/neuromatch.io\/\"><span style=\"font-weight: 400;\">Neuromatch<\/span><\/a><span style=\"font-weight: 400;\">, a nonprofit organization focused on computational neuroscience education.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The survey was inspired in part by an earlier survey that revealed trainees often felt adrift after completing one of Neuromatch\u2019s annual summer courses. That survey also <\/span><span style=\"font-weight: 400;\">revealed a<\/span><span style=\"font-weight: 400;\"> clear appetite for career-oriented follow-up support: mentorship, real-world research placements and help securing competitive Ph.D. and postdoctoral positions.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u201cWe know firsthand that researchers need stronger support across the career pipeline, especially in lower-resourced regions,\u201d says <\/span><a href=\"https:\/\/neuromatch.io\/our-people\/\"><span style=\"font-weight: 400;\">Bradley Roberts<\/span><\/a><span style=\"font-weight: 400;\">, CEO of Neuromatch.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Undergraduates, graduate students, postdoctoral researchers and principal investigators (PIs) who had opened their labs within the past five years were eligible to participate in the new joint survey. A little more than half of respondents were postdoctoral researchers or graduate students\u201430 percent and 25 percent, respectively. Given Neuromatch\u2019s focus, respondents tended to be early-career researchers in computational, cognitive and systems neuroscience. <u><span draggable=\"true\"><a href=\"https:\/\/doi.org\/10.5281\/zenodo.22305391\" target=\"_blank\" rel=\"noopener noreferrer\">Explore the full dataset<\/a><\/span><\/u><span draggable=\"true\">.<\/span><\/span>\r\n\r\nO<span style=\"font-weight: 400;\">verall, nearly half of all respondents reported that their long-term goal was to build their own lab as a PI.<\/span>\r\n\r\n<iframe id=\"datawrapper-chart-j6XV2\" style=\"width: 0; min-width: 100% !important; border: none;\" title=\"Career aspirations over the next 10 years\" src=\"https:\/\/datawrapper.dwcdn.net\/j6XV2\/2\/\" height=\"284\" frameborder=\"0\" scrolling=\"no\" aria-label=\"Bar Chart\" data-external=\"1\"><\/iframe><script type=\"text\/javascript\">(function(){function e(){window.addEventListener(`message`,function(e){if(e.data[`datawrapper-height`]!==void 0){var t=document.querySelectorAll(`iframe`);for(var n in e.data[`datawrapper-height`])for(var r=0,i;i=t[r];r++)if(i.contentWindow===e.source){var a=e.data[`datawrapper-height`][n]+`px`;i.style.height=a}}})}e()})();<\/script>\r\n\r\n<span style=\"font-weight: 400;\">However, analyzing results by career stage revealed different priorities. Undergraduate, master\u2019s and doctoral students all reported being more open to considering a broader spectrum of career paths than were postdoctoral researchers and PIs. About 16<\/span> <span style=\"font-weight: 400;\">percent said they wanted to move into industry, compared with 12 percent of postdocs and 4 percent of PIs. Many students stated a need for graduate programs to provide \u201ca structured path to career options outside of academia.\u201d<\/span>\r\n\r\n<iframe id=\"datawrapper-chart-DLLNk\" style=\"width: 0; min-width: 100% !important; border: none;\" title=\"Career aspirations over the next 10 years by career stage\" src=\"https:\/\/datawrapper.dwcdn.net\/DLLNk\/4\/\" height=\"570\" frameborder=\"0\" scrolling=\"no\" aria-label=\"Grouped column chart\" data-external=\"1\"><\/iframe><script type=\"text\/javascript\">(function(){function e(){window.addEventListener(`message`,function(e){if(e.data[`datawrapper-height`]!==void 0){var t=document.querySelectorAll(`iframe`);for(var n in e.data[`datawrapper-height`])for(var r=0,i;i=t[r];r++)if(i.contentWindow===e.source){var a=e.data[`datawrapper-height`][n]+`px`;i.style.height=a}}})}e()})();<\/script>"},{"acf_fc_layout":"callout_comp","callout_title":"","callout_copy":"\u201c<em>It\u2019s research\u2019s worst-kept secret that not everyone getting a Ph.D. will work in academia\u2014so why aren\u2019t we preparing graduates appropriately?\u2026 We should come out of our Ph.D.s feeling empowered, not defeated. We need better resources to prepare for this transitional stage\u2014courses, webinars and mentorship that will teach grad students the value in their skills and what they need to work on to ensure they always have a backup plan.<\/em>\u201d \u2014Survey respondent","callout_color":"red"},{"acf_fc_layout":"copy_comp","copy":"<span style=\"font-weight: 400;\">Top industry positions of interest included data science and computational roles at technology companies (35 percent), followed by biotech (16 percent) and clinical research (11 percent).<\/span>\r\n\r\n<iframe id=\"datawrapper-chart-wN0VG\" style=\"width: 0; min-width: 100% !important; border: none;\" title=\"Biggest challenges faced by early-career neuroscientists\" src=\"https:\/\/datawrapper.dwcdn.net\/wN0VG\/1\/\" height=\"298\" frameborder=\"0\" scrolling=\"no\" aria-label=\"Bar Chart\" data-external=\"1\"><\/iframe><script type=\"text\/javascript\">(function(){function e(){window.addEventListener(`message`,function(e){if(e.data[`datawrapper-height`]!==void 0){var t=document.querySelectorAll(`iframe`);for(var n in e.data[`datawrapper-height`])for(var r=0,i;i=t[r];r++)if(i.contentWindow===e.source){var a=e.data[`datawrapper-height`][n]+`px`;i.style.height=a}}})}e()})();<\/script>\r\n\r\n&nbsp;\r\n\r\n<iframe id=\"datawrapper-chart-J3WBJ\" style=\"width: 0; min-width: 100% !important; border: none;\" title=\"Biggest challenges for early-career neuroscientists, by career stage\" src=\"https:\/\/datawrapper.dwcdn.net\/J3WBJ\/7\/\" height=\"643\" frameborder=\"0\" scrolling=\"no\" aria-label=\"Grouped column chart\" data-external=\"1\"><\/iframe><script type=\"text\/javascript\">(function(){function e(){window.addEventListener(`message`,function(e){if(e.data[`datawrapper-height`]!==void 0){var t=document.querySelectorAll(`iframe`);for(var n in e.data[`datawrapper-height`])for(var r=0,i;i=t[r];r++)if(i.contentWindow===e.source){var a=e.data[`datawrapper-height`][n]+`px`;i.style.height=a}}})}e()})();<\/script>"},{"acf_fc_layout":"copy_comp","copy":"<span style=\"font-weight: 400;\">Researchers at all stages cited access to funding as their greatest concern (36 percent). Among PIs, a whopping 92 percent said they were most concerned about funding. The trend was different among undergraduates and masters students; 67 percent of undergraduates and masters students combined ranked \u201cmentorship\u201d and \u201caccess to training or resources\u201d as their top two concerns.<\/span>"},{"acf_fc_layout":"callout_comp","callout_title":"","callout_copy":"\u201c<em>Access to funded international mentorship and research collaboration opportunities would make the biggest positive difference in my neuroscience career right now. As an early-career researcher in a developing country, limited exposure to advanced laboratory techniques, neuroimaging tools, and global research networks often slows progress. Having structured mentorship and collaborative research opportunities with established neuroscientists would not only improve my technical skills but also strengthen my capacity to publish high-quality work and contribute meaningfully to global neuroscience discussions.<\/em>\u201d \u2014Survey respondent","callout_color":"red"},{"acf_fc_layout":"copy_comp","copy":"<span style=\"font-weight: 400;\">Eighty percent of postdocs named \u201cjob security\u201d as the top challenge. Postdocs may especially feel pressure to secure professorships amid <\/span><a href=\"https:\/\/www.thetransmitter.org\/academia\/static-pay-shrinking-prospects-fuel-neuroscience-postdoc-decline\/\"><span style=\"font-weight: 400;\">stagnant salaries and dwindling positions<\/span><\/a><span style=\"font-weight: 400;\">.\u00a0\u00a0<\/span>"},{"acf_fc_layout":"callout_comp","callout_title":"","callout_copy":"\u201c<em>My goals have not changed, but the outlook and landscape is now completely different. It calls into question whether staying in academia indefinitely with even more uncertain career prospects is justifiable, rational, or fair to my family, considering the low pay of postdocs.<\/em>\u201d \u2014Survey respondent","callout_color":"red"},{"acf_fc_layout":"copy_comp","copy":"<span style=\"font-weight: 400;\">When asked what changes might ameliorate the job security and retention challenges, researchers consistently pointed to salary raises.<\/span>"},{"acf_fc_layout":"callout_comp","callout_title":"","callout_copy":"\u201c<em>In the beginning, working as a research tech and throughout graduate school, the lack of financial support was very, very challenging. Now as a postdoc, life expenses seem more manageable, but I think increasing the salary for younger generations at earlier career stages in neuroscience would help with retention.<\/em>\u201d\u00a0 \u2014Survey respondent","callout_color":"red"},{"acf_fc_layout":"copy_comp","copy":"<span style=\"font-weight: 400;\">Other respondents called for putting a renewed emphasis on the training aspect of graduate and postdoctoral work.\u00a0<\/span>"},{"acf_fc_layout":"callout_comp","callout_title":"","callout_copy":"\u201c<em>As it stands now, \u2018factory labs\u2019 at a handful of universities submit huge numbers of grant applications and receive a disproportionate amount of funding. These labs churn through grad students and postdocs with little care about mentorship or their career prospects. There needs to be a reemphasis in academic research on actual academics\u2014TEACHING\u2014of scientists \u2026 This will require smaller and more well-funded labs.<\/em>\u201d \u2014Survey respondent","callout_color":"red"},{"acf_fc_layout":"copy_comp","copy":"<span style=\"font-weight: 400;\">A need for higher-quality mentorship opportunities echoed across responses to multiple survey questions. In open-answer responses, early-career researchers voiced a need for guidance tailored to their particular career stage, emphasizing a desire for mentorship tied to specific scientific questions rather than simply learning new methods. They also wanted more direct action from mentors.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u201cOftentimes mentors are great supporters but not great advocates,\" wrote one responder. \u201cAnd mentors need to learn that being an advocate is critical for their mentees. However, I do think that we select for people in science that do not have the perfect personalities to act as advocates, so this is a tough problem to solve.\u201d<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Among respondents who had participated in summer courses such as Neuromatch\u2019s, a quarter noted that having continued mentorship after the course would be most helpful to their careers, as would follow-up workshops and seminars to help them flex their new skills. Ninety-one percent of respondents said they would be interested in attending a post-course meetup at an in-person conference or in a virtual setting.<\/span>\r\n\r\n<iframe id=\"datawrapper-chart-m4Sgy\" style=\"width: 0; min-width: 100% !important; border: none;\" title=\"Changes in career goals following U.S. federal funding cuts\" src=\"https:\/\/datawrapper.dwcdn.net\/m4Sgy\/1\/\" height=\"518\" frameborder=\"0\" scrolling=\"no\" aria-label=\"Grouped column chart\" data-external=\"1\" data-mce-fragment=\"1\"><\/iframe><script type=\"text\/javascript\">(function(){function e(){window.addEventListener(`message`,function(e){if(e.data[`datawrapper-height`]!==void 0){var t=document.querySelectorAll(`iframe`);for(var n in e.data[`datawrapper-height`])for(var r=0,i;i=t[r];r++)if(i.contentWindow===e.source){var a=e.data[`datawrapper-height`][n]+`px`;i.style.height=a}}})}e()})();<\/script>\r\n\r\n<span style=\"font-weight: 400;\">Survey respondents also weighed in the recent policy changes and funding cuts implemented by the current U.S. administration. Many labs will receive less funding than in <\/span><a href=\"https:\/\/www.thetransmitter.org\/funding\/neuroscience-brain-initiative-gain-budget-in-bad-nih-funding-bill\/\"><span style=\"font-weight: 400;\">previous years,<\/span> <\/a><span style=\"font-weight: 400;\">and numerous established <\/span><a href=\"https:\/\/www.thetransmitter.org\/funding\/exclusive-nih-nixes-funds-for-several-pre-and-postdoctoral-training-programs\/\"><span style=\"font-weight: 400;\">mentorship programs<\/span><\/a><span style=\"font-weight: 400;\"> and <\/span><a href=\"https:\/\/www.nytimes.com\/2025\/04\/22\/science\/trump-national-science-foundation-grants.html\"><span style=\"font-weight: 400;\">funding opportunities<\/span><\/a><span style=\"font-weight: 400;\"> have been axed, leaving many young researchers <\/span><a href=\"https:\/\/www.thetransmitter.org\/funding\/a-gut-punch-how-u-s-neuroscience-trainees-are-grappling-with-diversity-based-funding-flux\/\"><span style=\"font-weight: 400;\">scrambling to find support<\/span><\/a><span style=\"font-weight: 400;\">.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Survey responses indicated that, so far, the impact of U.S. federal funding cuts is concentrated among U.S.-based researchers. Respondents outside the United States said that they are less directly affected or perceive these changes as less relevant to their career trajectories.<\/span>"},{"acf_fc_layout":"callout_comp","callout_title":"","callout_copy":"\u201c<em>Academia in the U.S. was untenable even before Jan. of this year\u2014the actions of the new administration have only further heightened that. The whole system needs an overhaul to become a sustainable career path that actually retains the people it trains instead of leaving us jobless, confused, and broke at 35.<\/em>\u201d \u2014 U.S.-based respondent","callout_color":"red"},{"acf_fc_layout":"copy_comp","copy":"<iframe id=\"datawrapper-chart-SuIfz\" style=\"width: 0; min-width: 100% !important; border: none;\" title=\"Perceived impact of AI and machine-learning tools on neuroscience career\" src=\"https:\/\/datawrapper.dwcdn.net\/SuIfz\/1\/\" height=\"360\" frameborder=\"0\" scrolling=\"no\" aria-label=\"Bar Chart\" data-external=\"1\"><\/iframe><script type=\"text\/javascript\">(function(){function e(){window.addEventListener(`message`,function(e){if(e.data[`datawrapper-height`]!==void 0){var t=document.querySelectorAll(`iframe`);for(var n in e.data[`datawrapper-height`])for(var r=0,i;i=t[r];r++)if(i.contentWindow===e.source){var a=e.data[`datawrapper-height`][n]+`px`;i.style.height=a}}})}e()})();<\/script>\r\n\r\n<span style=\"font-weight: 400;\">More than half of respondents (56.6 percent) said they expect that artificial-intelligence (AI) and machine-learning tools will enhance their careers by increasing the speed and efficiency of their research. But almost 30 percent self-identified as computational and AI neuroscientists, which may explain their openness to AI in research.\u00a0\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Both Neuromatch and <\/span><i><span style=\"font-weight: 400;\">The Transmitter <\/span><\/i><span style=\"font-weight: 400;\">aim to apply lessons from the survey to developing future resources for early-career scientists.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u201c[This survey is]<\/span><span style=\"font-weight: 400;\"> the starting point for a new career-development strategy we're building at Neuromatch,\u201d Roberts says.<\/span>"}]},"_links":{"self":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256161","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/users\/73"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/comments?post=256161"}],"version-history":[{"count":10,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256161\/revisions"}],"predecessor-version":[{"id":256369,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256161\/revisions\/256369"}],"acf:post":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/contributor\/221221"},{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/contributor\/218881"}],"acf:term":[{"embeddable":true,"taxonomy":"post_tag","href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags\/207"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media\/256263"}],"wp:attachment":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media?parent=256161"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/categories?post=256161"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags?post=256161"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}},{"id":256156,"date":"2026-09-14T00:00:29","date_gmt":"2026-09-14T04:00:29","guid":{"rendered":"https:\/\/www.thetransmitter.org\/?p=256156"},"modified":"2026-09-24T09:23:16","modified_gmt":"2026-09-24T13:23:16","slug":"infant-memories-lost-but-not-gone","status":"publish","type":"post","link":"https:\/\/www.thetransmitter.org\/memory\/infant-memories-lost-but-not-gone\/","title":{"rendered":"Infant memories: Lost but not gone?"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>Infantile amnesia is not simply a story about forgetting the past. It is an opportunity to understand how memory itself is built.<\/p>\n","protected":false},"author":73,"featured_media":256199,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[139],"tags":[27,322,726,225,56,157],"class_list":["post-256156","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-perspectives","tag-audio-research-news","tag-developmental-neuroscience","tag-engrams","tag-memory","tag-neural-circuits","tag-neurodevelopment"],"acf":{"primary_tag":225,"doi_url":"https:\/\/doi.org\/10.53053\/CTBT1531","citation_count":"0","custom_js_library":"","hero_type":"feat_image","hero_alt_image":null,"hero_youtube":"","hero_video":null,"hero_layout":"landscape","hero_caption":"<strong>Misty memories:<\/strong> Infantile amnesia reflects not a failure to encode memories but a failure to naturally retrieve them.","hero_by":"Illustration by Myriam Wares","hero_credit":"","hero_bg_color":"tan","authors":[256154,200886,256155],"other_authors":"","related_title":"Explore more from <em>The Transmitter<\/em>","related_hide":false,"related_filter":"latest","related_tag":null,"related_category":null,"related_custom":{"articles":null},"related_custom_wwn":{"articles":null},"newsletter":"","banner_content":"","banner_url":"","apple_article_id":"1b64e2ae-9101-4c4e-8e43-b857069aff82","apple_article_revision":"AAAAAAAAAAAAAAAAAAAAAg==","google_button_text":"","google_btn_bg_color":"","tooltip_text":"","sidebar_related_hide":false,"sidebar_related_title":"related articles","sidebar_related_hide_images":false,"sidebar_related_articles":"","comps":[{"acf_fc_layout":"audio_comp","audio_title":"LISTEN TO THIS STORY:","audio":256641,"apple_link":"","spotify_link":"","google_link":""},{"acf_fc_layout":"copy_comp","copy":"<span style=\"font-weight: 400;\">What is your first memory? A birthday party, a fall in the playground, a family trip? For most people, it dates to around age 3 or 4 at the earliest. Infant and toddler experiences are, seemingly, absent from our autobiography. Sigmund Freud named this phenomenon <\/span><i><span style=\"font-weight: 400;\">infantile amnesia<\/span><\/i><span style=\"font-weight: 400;\"> and argued that early-life memories are so emotionally charged that they <\/span><a href=\"https:\/\/archive.org\/details\/standardeditiono14freu\"><span style=\"font-weight: 400;\">must be actively repressed<\/span><\/a><span style=\"font-weight: 400;\">. In this view, infants are capable of forming memories for important life events, but these memories become inaccessible over time (although he argued that psychotherapy might, in principle, recover them).<\/span>\r\n\r\n<span style=\"font-weight: 400;\">More contemporary psychological accounts have linked infantile amnesia to the immaturity of the hippocampus, a brain structure critical for forming episodic memories in older children and adults. According to these accounts, hippocampal circuits are not sufficiently developed in infancy to form enduring traces of life events. That is, infantile amnesia reflects a <\/span><a href=\"https:\/\/doi.org\/10.1016\/j.dcn.2015.08.009\"><span style=\"font-weight: 400;\">failure to encode experiences<\/span><\/a><span style=\"font-weight: 400;\">.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Here, we argue for a different view. Early-life experiences are encoded by the hippocampus and may persist over time. What changes is how easily they can be accessed. Infantile amnesia, therefore, reflects not a failure to encode memories but a failure to naturally retrieve them.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">[tt_text class='']<a href=\"https:\/\/doi.org\/10.1126\/science.1248903\">I<\/a>[\/tt_text]<\/span><a href=\"https:\/\/doi.org\/10.1126\/science.1248903\"><span style=\"font-weight: 400;\">nfantile amnesia<\/span><\/a><span style=\"font-weight: 400;\"> is <\/span><a href=\"https:\/\/doi.org\/10.1523\/JNEUROSCI.0324-17.2017\"><span style=\"font-weight: 400;\">not uniquely human<\/span><\/a><span style=\"font-weight: 400;\">. Nearly all mammals that have been studied exhibit accelerated forgetting in infancy. For example, similar to young children, mice and rats can form memories of specific events, but these memories do not endure. <\/span><a href=\"https:\/\/doi.org\/10.1126\/sciadv.adg9921\"><span style=\"font-weight: 400;\">This phenomenon<\/span><\/a><span style=\"font-weight: 400;\"> has been demonstrated across a range of infant-acquired experiences, including fear conditioning, object recognition and spatial learning. The exception is highly precocial animals, such as guinea pigs and degus, whose brains are much more mature at birth.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The advent of activity-dependent <\/span><a href=\"https:\/\/doi.org\/10.1016\/j.cub.2024.05.007\"><span style=\"font-weight: 400;\">engram labeling<\/span><\/a><span style=\"font-weight: 400;\"> and optogenetic tools has enabled researchers to directly address the <\/span><a href=\"https:\/\/doi.org\/10.1038\/s41593-019-0493-1\"><span style=\"font-weight: 400;\">encoding versus retrieval debate<\/span><\/a><span style=\"font-weight: 400;\">. In mice, researchers can tag engrams in infant pups, track their persistence across development and optogenetically reactivate them later in life to <\/span><a href=\"https:\/\/doi.org\/10.1016\/j.cub.2018.05.059\"><span style=\"font-weight: 400;\">recover seemingly lost memories<\/span><\/a><span style=\"font-weight: 400;\">. Animals that undergo contextual fear conditioning in infancy show no behavioral evidence of remembering when tested in adulthood (that is, they do not freeze when placed back in a context where they were shocked as pups). However, optogenetic stimulation of the neurons that were active when the pup was first conditioned triggers expression of the memory; the mature animal now freezes.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Importantly, it is not just optogenetically activating any population of cells that produces the freezing response, only those that were active during infant learning.\u00a0 Together, these findings indicate that early-life memories are successfully encoded and may persist over time but cannot be accessed through natural sensory retrieval cues\u2014pointing to a failure of retrieval rather than encoding.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">These mouse results also suggest that infantile amnesia is unlikely to arise entirely from human-centric factors, such as the emergence of language, a coherent sense of self, or the repression of early emotional experiences. Instead, they point to a more fundamental process in which early memories are formed and stored but become increasingly inaccessible as the brain and its modes of retrieval change across development.\u00a0<\/span>\r\n\r\n[tt_sidebar_quote author='']<span style=\"font-weight: 400;\">The future of infantile amnesia research will depend not on choosing between species or levels of analysis but on integrating them.<\/span>[\/tt_sidebar_quote]\r\n\r\n<span style=\"font-weight: 400;\">Of course, mouse studies cannot access the autobiographical, linguistic and subjective dimensions of remembering that are central to the human experience.\u00a0 A growing body of research is digging into the development of episodic memory in human infants. Researchers can measure behavior, physiology and, increasingly, hippocampal function itself. These studies can capture the richness of human development: changing perception, emerging language, growing motor abilities and engagement with the social world in which memories are embedded.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Research on human infants reveals that memory systems are active far earlier than once assumed; behavioral studies show that infants learn and remember from birth. But the tasks these studies employ involve motor actions, repeated training and reward or feedback. These requirements contribute to forms of memory, such as operant conditioning and priming, that can be dissociated from episodic memory and that engage brain regions other than the hippocampus, including the striatum, cerebellum and sensory systems.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Studying hippocampal-based memory in human infants has been challenging because of technical limitations; the neuroimaging methods typically used in this population, including electroencephalography (EEG) and functional near-infrared spectroscopy (fNIRS), measure scalp signals and cannot reach deep-brain structures. But this has changed over the past decade with the advent of functional MRI (fMRI) in <\/span><a href=\"https:\/\/doi.org\/10.1111\/infa.70062\"><span style=\"font-weight: 400;\">awake infants<\/span><\/a><span style=\"font-weight: 400;\">. Greater hippocampal activity while infants view photographs of objects, faces and scenes\u2014the \u201cbuilding blocks\u201d of episodic memories\u2014predicts whether they later remember those photographs. Remembering, in this case, is inferred from the fact that infants spend more time looking at photographs they have seen before than at new ones. This type of <\/span><a href=\"https:\/\/doi.org\/10.1126\/science.adt7570\"><span style=\"font-weight: 400;\">hippocampal encoding<\/span><\/a><span style=\"font-weight: 400;\"> starts around 9 to 12 months of age.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">[tt_text class='']W[\/tt_text]hy can\u2019t early-life memories be accessed? Scientists have proposed several explanations, ranging from psychological theories emphasizing the development of consciousness, language and a sense of self to neurobiological accounts focused on circuit maturation, plasticity and neurogenesis. The fact that mice cannot remember (without optogenetic stimulation) when returned to a familiar context, despite retaining a hippocampal engram, provides an important clue.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">During development, the brain changes how it interprets the world. We learn language, become experts at recognizing objects and faces, organize experiences into concepts and begin to understand other people's intentions. As a result, the same sights and sounds that once triggered a memory in infancy no longer produce the same pattern of brain activity. The hippocampal engram is still there, but the cues needed to reactivate it may no longer match, preventing the memory from being naturally expressed. In this view, cognitive and brain development gradually reduce access to early memories rather than erase them.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">In unpacking infantile amnesia, human and mouse studies have each made profound, yet still incomplete, progress. Human work helps define what changes across development; mouse work helps reveal how those changes are implemented in circuits and cells. Together, they offer a bridge between mechanism and behavior, between hippocampal development and lived experience. The future of infantile amnesia research will depend not on choosing between species or levels of analysis but on integrating them\u2014building theories that can move from infant behavior to engram biology and back again. Infantile amnesia is not simply a story about forgetting the past. It is an opportunity to understand how memory itself is built.<\/span>"}]},"_links":{"self":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256156","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/users\/73"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/comments?post=256156"}],"version-history":[{"count":10,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256156\/revisions"}],"predecessor-version":[{"id":256739,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256156\/revisions\/256739"}],"acf:post":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/contributor\/256155"},{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/contributor\/200886"},{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/contributor\/256154"}],"acf:term":[{"embeddable":true,"taxonomy":"post_tag","href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags\/225"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media\/256199"}],"wp:attachment":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media?parent=256156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/categories?post=256156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags?post=256156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}},{"id":256090,"date":"2026-09-11T00:00:21","date_gmt":"2026-09-11T04:00:21","guid":{"rendered":"https:\/\/www.thetransmitter.org\/?p=256090"},"modified":"2026-09-15T10:29:49","modified_gmt":"2026-09-15T14:29:49","slug":"finally-a-new-route-for-the-magnetic-sense-field","status":"publish","type":"post","link":"https:\/\/www.thetransmitter.org\/sensory-systems\/finally-a-new-route-for-the-magnetic-sense-field\/","title":{"rendered":"Finally, a new route for the magnetic-sense field"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>Researchers have dueled for years over how the magnetic sense works. New data from monarch butterflies could finally help settle the debate.<\/p>\n","protected":false},"author":32,"featured_media":256102,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[153],"tags":[141,42,38,131,273,577,266,307],"class_list":["post-256090","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-features","tag-academia","tag-animal-models","tag-community","tag-evolution","tag-neuroethology","tag-neurophysiology","tag-sensory-systems","tag-spatial-cognition-and-navigation"],"acf":{"primary_tag":266,"doi_url":"https:\/\/doi.org\/10.53053\/POPU4285","citation_count":"0","custom_js_library":"","hero_type":"feat_image","hero_alt_image":null,"hero_youtube":"","hero_video":null,"hero_layout":"landscape","hero_caption":"<strong>Magnetic migrators:<\/strong> Monarch butterflies are one of the species that can use the Earth\u2019s magnetic field to navigate\u2014and they may soon provide insight into the sense\u2019s mechanism.","hero_by":"Photography by Felix Sanchez","hero_credit":"","hero_bg_color":"tan","authors":[107167],"other_authors":"","related_title":"Explore more from <em>The Transmitter<\/em>","related_hide":false,"related_filter":"latest","related_tag":null,"related_category":null,"related_custom":{"articles":null},"related_custom_wwn":{"articles":null},"newsletter":"","banner_content":"","banner_url":"","apple_article_id":"89e07eda-e54f-4505-89d2-129e30b06648","apple_article_revision":"AAAAAAAAAAAAAAAAAAAAAQ==","google_button_text":"","google_btn_bg_color":"","tooltip_text":"","sidebar_related_hide":false,"sidebar_related_title":"related articles","sidebar_related_hide_images":false,"sidebar_related_articles":"","comps":[{"acf_fc_layout":"copy_comp","copy":"<span style=\"font-weight: 400;\">When newcomers join the band of biologists who study the magnetic sense of animals, they have 60 years of conflict to catch up on.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">They might be warned that it\u2019s an \u201cunhappy area of science,\u201d as <\/span><a href=\"https:\/\/www.lunduniversity.lu.se\/lucat\/user\/34a8117b64a3ac6502d0cd2c65a02cb8\"><span style=\"font-weight: 400;\">Eric Warrant<\/span><\/a><span style=\"font-weight: 400;\">, professor and head of sensory biology at Lund University, describes it. They might hear about the infamous incident from the 2011 Royal Institute of Navigation meeting, where a new member of the field gave a talk that unraveled a finding that had already made its way into textbooks. Or they might learn about the failed attempt to replicate a key finding in fruit flies, and how that derailed 15 years of work.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">But they will almost certainly hear about the two main theories of how the magnetic sense works\u2014one based on magnetic crystals, the other on quantum chemistry\u2014and how the two camps have been locked in a stalemate for years.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Now, new data from migratory insects is poised to provide the direct evidence the field has long needed, and a study last year in sea turtles suggests multiple mechanisms could be at play, even in the same species. Those could be enough to break the logjam and open the field back up again.<\/span>\r\n\r\n<a href=\"https:\/\/www.bio.lmu.de\/en\/research\/research-fields\/neurobiology\/keays-lab\/\"><span style=\"font-weight: 400;\">David Keays<\/span><\/a><span style=\"font-weight: 400;\">, professor of neurobiology at Ludwig-Maximilians-Universit\u00e4t M\u00fcnchen, who gave the game-changing talk at the 2011 meeting, is one of the many scientists who have spent the majority of their careers wanting to know how this sense works. Finally, he says, \u201cI think we are getting closer.\u201d\u00a0<\/span>\r\n\r\n[tt_text class='']W[\/tt_text]<span style=\"font-weight: 400;\">hen the study of the magnetic sense, also called magnetoreception, first materialized, it wasn\u2019t taken seriously enough to generate any debates at all.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Scientists first postulated in the 19<sup>th<\/sup><\/span><span style=\"font-weight: 400;\">\u00a0century that birds could use magnetic fields as a compass, but experimental evidence supporting this assertion didn\u2019t arrive <\/span><a href=\"https:\/\/www.zobodat.at\/pdf\/Vogelwarte_23_1965_0071-0077.pdf\"><span style=\"font-weight: 400;\">until the 1960s<\/span><\/a><span style=\"font-weight: 400;\">. Even then, the study of magnetoreception was \u201cgenerally considered to be outside the mainstream of real biology,\u201d says <\/span><a href=\"https:\/\/lohmannlab.web.unc.edu\/kenneth-lohmann-ph-d\/\"><span style=\"font-weight: 400;\">Kenneth Lohmann<\/span><\/a><span style=\"font-weight: 400;\">, distinguished professor of biology at the University of North Carolina at Chapel Hill. \u201cThere was intense skepticism in the beginning, and a belief that magnetic effects probably were not real.\u201d<\/span>\r\n\r\n<span style=\"font-weight: 400;\">That skepticism began to fade by the 1990s, as more researchers identified animals that could sense magnetic fields: additional species of <\/span><a href=\"https:\/\/doi.org\/10.1016\/j.cub.2005.08.017\"><span style=\"font-weight: 400;\">birds<\/span><\/a><span style=\"font-weight: 400;\">, plus <\/span><a href=\"https:\/\/doi.org\/10.1126\/science.1064557\"><span style=\"font-weight: 400;\">sea turtles<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/doi.org\/10.1126\/science.3738508\"><span style=\"font-weight: 400;\">salamanders<\/span><\/a><span style=\"font-weight: 400;\"> and even <\/span><a href=\"https:\/\/doi.org\/10.1126\/science.170679\"><span style=\"font-weight: 400;\">bacteria<\/span><\/a><span style=\"font-weight: 400;\">. As a result, the discourse shifted from whether animals detect magnetic fields to how they do it.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Then the two theories arose. The \u201c<\/span><a href=\"https:\/\/doi.org\/10.1007\/s00359-012-0769-3\"><span style=\"font-weight: 400;\">magnetite theory<\/span><\/a>\u201d<span style=\"font-weight: 400;\"> proposes that a change in an animal\u2019s position within the Earth\u2019s magnetic field activates tiny iron oxide crystals called magnetite inside cells. The crystals push to align with the magnetic field, which opens ion channels or triggers other signaling pathways that relay the magnetic field information to the brain.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The second theory, called the \u201c<\/span><a href=\"https:\/\/doi.org\/10.1524\/zpch.1978.111.1.001\"><span style=\"font-weight: 400;\">radical pair hypothesis<\/span><\/a><span style=\"font-weight: 400;\">,\u201d argues that proteins in the retina called cryptochromes absorb blue wavelengths of light. This moves electrons from one molecule in the protein to another and creates a radical pair of molecules that each have an unbalanced number of electrons. In this state, magnetic fields alter how the molecules interact with each other; these alterations can then be converted into neuronal signals.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Determining if either theory was correct, however, turned out to be a herculean endeavor.\u00a0<\/span>"},{"acf_fc_layout":"image_comp","aspect_ratio":"inline","title":"","image":256103,"link":"","image_caption":"<strong>Magnet map:<\/strong> The magnetic field\u2019s qualities vary across the globe, so every location contains a unique magnetic signature that sea turtles can use to navigate, like a magnet-based GPS system.","image_byline":{"by":"","credit":""}},{"acf_fc_layout":"copy_comp","copy":"[tt_text class='']P[\/tt_text]<span style=\"font-weight: 400;\">art of the problem is that the hunting grounds for a magnetoreceptor hold almost no bounds. Magnetic fields can pass through tissue, unaltered and unobstructed, which means a magnetoreceptor could be in any cell, anywhere in the body, unlike the detectors of other sensory stimuli, such as light, sound and smell.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u201cIt\u2019s basically a needle-in-a-haystack problem, and we don\u2019t even know what the needle looks like,\u201d Lohmann says.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">For about 30 years, some proponents of the magnetite theory thought they were zeroing in on the receptor in pigeons. Two German labs claimed to have found magnetite inside a cluster of neurons near the birds\u2019 beaks and sketched out the nerve pathway that would relay the information. People were so confident in this idea that it <\/span><a href=\"https:\/\/archive.org\/details\/biology8theditio0001camp\/mode\/2up\"><span style=\"font-weight: 400;\">appeared in textbooks<\/span><\/a><span style=\"font-weight: 400;\">.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Then came the 2011 Royal Institute of Navigation meeting.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Keays gave his talk in the last slot on the last day of the gathering. He walked through the painstaking work his lab had undertaken for the past few years. Pigeons have iron-rich cells all over their body, not just a cluster by the beak. And the ones near the beak aren\u2019t neurons; they are macrophages, a type of immune cell. So the proposed mechanism was a bust.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">To date, no one has found a bona fide magnetoreceptor. Most evidence for or against the theories comes from behavioral experiments using a set of \u201cdefinitive tests\u201d that disrupt an animal\u2019s magnetic sense, Warrant says. These tests generate only indirect evidence, and the behavioral responses are \u201cvery subtle,\u201d Lohmann says, likely because magnetoreception is \u201calmost a backup system, or the sense of last resort.\u201d If animals can use the sun or other cues to navigate, they will.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">This type of data does not lend itself well to settling arguments. Productive scientific debates rely on sufficient facts to constrain and falsify ideas, Lohmann says, which the field of magnetoreception hasn\u2019t had.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">As a result, there were \u201ctwo schools of thought about how magnetoreception is done, and neither can believe that the other school of thought is correct,\u201d Warrant says\u2014and both believed there could be only one true mechanism. \u201cWhich is the most absurd thing, really, if you think about it. Why should evolution be constrained by what we think?\u201d<\/span>\r\n\r\n[tt_sidebar_quote author='Kenneth Lohmann']It\u2019s basically a needle-in-a-haystack problem, and we don\u2019t even know what the needle looks like.[\/tt_sidebar_quote]\r\n\r\n[tt_text class='']T[\/tt_text]<span style=\"font-weight: 400;\">hose sufficient facts are beginning to arrive. At this year\u2019s Royal Institute of Navigation meeting in April, Warrant attended a talk by <\/span><a href=\"https:\/\/uol.de\/en\/ibu\/animal-navigation\/staff\/henrik-mouritsen\"><span style=\"font-weight: 400;\">Henrik Mouritsen<\/span><\/a><span style=\"font-weight: 400;\">, professor in the Institute of Biology and Environmental Sciences at the University of Oldenburg and a veteran of the field. What the field needed to end its stalemate, Mouritsen said, was an electrophysiology recording from a true magnetoreceptor\u2014be that one based on magnetite, cryptochrome or something else entirely.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">And this, Mouritsen conceded, was much more likely to occur in an insect first, Warrant says. (Mouritsen did not respond to several requests for an interview.)<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The <\/span><a href=\"https:\/\/www.thetransmitter.org\/animal-models\/star-responsive-neurons-steer-moths-long-distance-migration\/\"><span style=\"font-weight: 400;\">bogong moth<\/span><\/a><span style=\"font-weight: 400;\"> and <\/span><a href=\"https:\/\/www.thetransmitter.org\/animal-models\/the-non-model-organism-renaissance-has-arrived\/\"><span style=\"font-weight: 400;\">monarch butterfly<\/span><\/a><span style=\"font-weight: 400;\"> are both migratory insects that use the Earth\u2019s magnetic field as a compass cue. They are smaller than birds, which makes the receptor search easier, but in addition, scientists can more easily manipulate their genes and record from their brains.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">One of the researchers shepherding insects into the field is <\/span><a href=\"https:\/\/artsci.tamu.edu\/biology\/contact\/profiles\/christine-merlin.html\"><span style=\"font-weight: 400;\">Christine Merlin<\/span><\/a><span style=\"font-weight: 400;\">, professor of biology at Texas A&amp;M University. She originally developed CRISPR gene-editing tools for the monarch butterfly to study the animal\u2019s circadian clock, but in 2021, Merlin and her team managed to <\/span><a href=\"https:\/\/doi.org\/10.1038\/s41467-021-21002-z\"><span style=\"font-weight: 400;\">remove a key part of cryptochrome<\/span><span style=\"font-weight: 400;\"> and disrupt magnetoreception.<\/span><\/a><span style=\"font-weight: 400;\">\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">When cryptochrome was first raised as a candidate magnetoreceptor, it could only be studied outside an animal, using chemistry techniques. In 2008, Merlin\u2019s former mentor <\/span><a href=\"https:\/\/www.umassmed.edu\/reppertlab\/\"><span style=\"font-weight: 400;\">Steven Reppert<\/span><\/a><span style=\"font-weight: 400;\"> and his colleagues knocked out one of the proteins from <\/span><i><span style=\"font-weight: 400;\">Drosophila<\/span><\/i><span style=\"font-weight: 400;\"> and observed that the fruit flies lost the ability to associate a magnetic field with a sugar reward. Reppert and several other labs spent the next 15 years studying how it contributes to the fly\u2019s magnetic sense, but that effort fizzled out when a <\/span><a href=\"https:\/\/doi.org\/10.1038\/s41586-023-06397-7\"><span style=\"font-weight: 400;\">massive replication effort<\/span><\/a><span style=\"font-weight: 400;\"> using more than 100,000 flies found no evidence that they can detect magnetic fields at all\u2014a \u201cgreat disappointment,\u201d says study investigator <\/span><a href=\"https:\/\/www.chem.ox.ac.uk\/people\/peter-hore\"><span style=\"font-weight: 400;\">Peter Hore<\/span><\/a><span style=\"font-weight: 400;\">, emeritus professor of chemistry at the University of Oxford.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">So it was Merlin who had the first great success. With the protein not functioning in her butterflies, she saw that the insects could not detect when the angle of the magnetic field flipped in a flight simulator. Flipping the angle is like teleporting the animals to the opposite side of the world; wildtype butterflies will start flapping their wings as if they are trying to get themselves back where they belong. The cryptochrome mutants, however, act as if nothing has changed.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Now Merlin and <\/span><a href=\"https:\/\/orcid.org\/0009-0009-9587-5451\"><span style=\"font-weight: 400;\">Kayla Goforth<\/span><\/a><span style=\"font-weight: 400;\">, a postdoctoral researcher in Merlin\u2019s lab, are removing additional parts of the cryptochrome protein, as well as other light-sensitive proteins present in the monarchs\u2019 eyes, to sketch out the molecular pathway that converts magnetic information into a neuronal signal.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Their collaborator <\/span><a href=\"https:\/\/www.insectnavigation.com\/basil-el-jundi.html\"><span style=\"font-weight: 400;\">Basil el Jundi<\/span><\/a><span style=\"font-weight: 400;\">, of the <\/span><span style=\"font-weight: 400;\">University of Oldenburg<\/span><span style=\"font-weight: 400;\">, wants to use butterflies for a different but complementary project: to find the brain region that encodes magnetic information and trace that pathway back to the magnetic receptor. To do that, he is heading to Texas.<\/span>"},{"acf_fc_layout":"slideshow_comp","slideshow":[{"image":256094,"caption":"<b>Butterfly brain:<\/b> Robin Grob, shown here, places an electrode inside a monarch butterfly\u2019s brain in the hopes of capturing neuronal responses to magnetic field information.","by":"","credit":""},{"image":256095,"caption":"<b>Indoor insects:<\/b> Christine Merlin\u2019s lab maintains a colony of wildtype and genetically modified monarch butterflies but also captures migrating butterflies for some field experiments.","by":"","credit":""},{"image":256093,"caption":"<b>CRISPR critters:<\/b> Kayla Goforth, shown here, is using CRISPR to remove parts of the cryptochrome protein in the monarch butterfly eye to zero in on the molecular pathway driving the magnetic sense.","by":"","credit":""},{"image":256096,"caption":"<b>Fictional flight:<\/b> Inside the flight simulator, the tethered butterflies can rotate in any direction and flap their wings, which indicates when they detect a change in the experimental magnetic field.","by":"","credit":""},{"image":256092,"caption":"<b>Texas time:<\/b> Members of Christine Merlin's and Basil el Jundi\u2019s labs conduct field experiments with migrating monarch butterflies in Central Texas during October and November.","by":"","credit":""}]},{"acf_fc_layout":"copy_comp","copy":"[tt_text class='']E[\/tt_text]<span style=\"font-weight: 400;\">ach year, beginning in October, millions of monarch butterflies migrate south through Canada and the United States, down to their overwintering grounds in central Mexico. At the same time, a group of researchers migrate themselves, from el Jundi\u2019s lab in Germany to a field on the outskirts of the Texas A&amp;M campus, where they can use migrating butterflies in their work.<\/span>\r\n\r\n<a href=\"https:\/\/www.ntnu.no\/ansatte\/robin.grob\"><span style=\"font-weight: 400;\">Robin Grob<\/span><\/a><span style=\"font-weight: 400;\">, a postdoctoral researcher in both el Jundi\u2019s lab at the University of Oldenburg and at the Norwegian University of Science and Technology, spends his Texas fieldwork days at an electrophysiology rig inside an unassuming shack, recording from butterfly brains. It\u2019s an ideal animal for the magnetoreceptor search, Grob says, because researchers have intricately sketched out and studied the central complex, the navigational hub in the insect brain, over the past 15 years. Here, different streams of sensory information come in, and a steering command comes out. \u201cIt\u2019s just logical that it should encode magnetic information too,\u201d Grob says.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Grob starts each experiment by exposing a butterfly\u2019s murky white brain and inserting a few flexible electrodes inside, which snake back to a piece of recording equipment that fits in the palm of his hand. He then carefully carries the setup outside, butterfly in one hand and recorder in the other, while the electrode tails leap in the wind. They are as thin as a strand of hair. \u201cEvery wing beat could break them,\u201d Grob says. The wind can break them, too, and the sun can melt the wax that keeps everything attached.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Next he turns to a flight simulator: a large metal cylinder, like a stockpot used for a seafood boil, with a rod resting across the top. Using a metal probe adhered to the butterfly\u2019s thorax, Grob attaches the insect to the underside of the rod. The butterfly can flap its wings and rotate itself as much as it chooses. Now Grob can record from compass neurons in the central complex as he tweaks the magnetic field, which he does via a magnetic coil circling the simulator.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The goal is to find neurons that alter their firing in response to changes in the magnetic field. Grob hypothesizes that these neurons will have a receptive field and fire more in response to certain magnetic field characteristics, just like other sensory neurons do. If he does find some of these neurons, he and his colleagues can follow the path of the magnetic cues and \u201ctrace it backwards\u201d to the receptor. It\u2019s too early to make any conclusions, but the team should have a complete dataset after the 2026 field season ends in December, Grob says.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Merlin\u2019s cryptochrome mutants provide a \u201cperfect control\u201d for these experiments, Grob says. \u201cNothing should happen, because the sensor should be knocked out.\u201d<\/span>\r\n\r\n<span style=\"font-weight: 400;\">On the other side of the globe, Warrant plans to conduct similar field electrophysiology experiments with bogong moths in collaboration with el Jundi, and he is working on developing genetic tools as well.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u201cThose systems look to us to be extremely promising, probably the best bet for breaking open the system using neurobiological techniques,\u201d Lohmann says.\u00a0<\/span>\r\n\r\n[tt_text class='']T[\/tt_text]<span style=\"font-weight: 400;\">he latest wrinkle in the effort to settle the magnetite vs. radical pair debate comes from a <\/span><a href=\"https:\/\/doi.org\/10.1038\/s41586-024-08554-y\"><span style=\"font-weight: 400;\">paper<\/span><\/a><span style=\"font-weight: 400;\"> from Lohmann\u2019s group, published last year in <\/span><i><span style=\"font-weight: 400;\">Nature<\/span><\/i><span style=\"font-weight: 400;\">, that suggests there might be more than one magnetic sense, in which case the sides might have been arguing the wrong point the whole time.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The magnetic field \u201ccan potentially provide animals with two different types of information,\u201d Lohmann says. The simplest information is used to maintain a constant heading, akin to a compass. The properties of the magnetic field vary predictably across the Earth, so each location also has its own \u201cmagnetic signature,\u201d Lohmann says. If animals can detect these signatures, they can tell in what direction they need to go next, like a magnet-based GPS system.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">That\u2019s exactly what loggerhead sea turtles do. After the turtles hatch from their eggs on the beach, they waddle into the ocean, and when it\u2019s time to lay their own eggs, the females return to the same region\u2014and sometimes to nearly the exact same spot on the beach. When Goforth, the postdoc in Merlin\u2019s lab, was an undergraduate student in Florida, she tagged sea turtles for a research project on nesting. She noticed that each egg-laying season, a turtle would emerge from the ocean \u201cin front of the same three houses\u201d on the coastline. \u201cThey were so precise.\u201d<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Goforth joined the Lohmann Lab in 2016 for her Ph.D. and began trying to untangle the magnetic map and compass senses. This was \u201cgroundbreaking,\u201d Lohmann says, because the two senses often function together, so during experiments \u201cit\u2019s really hard to sort out whether whatever you did had an effect on the map sense or on the compass sense.\u201d<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Over the course of two months, sea turtles spent 40 minutes a day in pools with artificial magnetic signatures that mimicked those in locations around the Atlantic Ocean, created by magnetic coils. Goforth and her team fed the turtles snacks in one signature but not the other.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">To gauge if the turtles could detect the difference between the signatures, the researchers watched them dance. When captive sea turtles expect food, they shimmy from side to side, beat their front flippers, open their mouths and sometimes even spin. After their bout of training, the turtles danced in the magnetic signature they had learned to associate with food; they were less active in the other signature. The turtles could discern between the faux fields of New Hampshire and the Gulf of Mexico, Cuba and Delaware, Florida and Maine, and even Haiti and Turks and Caicos, which are less than 200 miles apart.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">This confirmed that sea turtles have a magnetic map sense. Next, Goforth tried to disrupt it.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">She generated oscillating magnetic fields in the radiofrequency range, which would support the radical pair theory. It did not affect the turtles\u2019 map sense, but it did impair their compass.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">If the same factor disrupted one magnetic sense but not the other, then the senses must have two different mechanisms, Goforth and her colleagues reasoned\u2014perhaps magnetite for the map sense, and radical pairs for the compass. In other words, both mechanisms could be true, and both could be present in the same animal.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">It\u2019s an \u201cabsolutely beautiful study,\u201d Warrant says.<\/span>"},{"acf_fc_layout":"video_comp","type":"video","video":256104,"youtube_id":"","cover_image":"","caption":"<strong>Dance data:<\/strong> Turtles danced more in the magnetic signatures they learned to associate with food (rewarded field) than in the signatures they did not (unrewarded field).","byline":{"by":"Goforth <em>et al<\/em>., <em>Nature<\/em> 2025","credit":""}},{"acf_fc_layout":"copy_comp","copy":"[tt_text class='']I[\/tt_text]<span style=\"font-weight: 400;\">t\u2019s possible the conflicting evidence that has accumulated over the years in the magnetoreception literature is a result of researchers \u201cworking on different things, but they think they\u2019re working on the same thing,\u201d says <\/span><a href=\"https:\/\/lohmannlab.web.unc.edu\/catherine-lohmann-ph-d\/\"><span style=\"font-weight: 400;\">Catherine Lohmann<\/span><\/a><span style=\"font-weight: 400;\">, associate teaching professor in biology at the University of North Carolina at Chapel Hill, who runs the Lohmann Lab alongside her husband. \u201cYou\u2019re going to get labs getting different results, and they\u2019re all equally certain that they did it right.\u201d<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The magnetoreceptor field is changing in other ways, too. In the past decade, a new cohort of researchers has entered the field, and older researchers have retired. \u201cThere\u2019s more data and less ego in the field now, if I can put it that way,\u201d Keays says.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The idea that there are multiple mechanisms behind magnetoreception, even within the same animal, has also taken some of the pressure off. Keays, for his part, has even resurrected an older, third theory called electromagnetic induction, which suggests that moving through magnetic fields induces a voltage in pigeons\u2019 ears. Last year, he reported that neurons in the pigeon brain <\/span><a href=\"https:\/\/doi.org\/10.1126\/science.aea6425\"><span style=\"font-weight: 400;\">respond to magnetic stimuli<\/span><\/a><span style=\"font-weight: 400;\"> even in the dark, and the inner ears contain the molecular parts required for induction.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">The field\u2019s desire to limit nature to one true solution was \u201cjust arrogance, more or less,\u201d Warrant says. \u201cAnd now we have probably three mechanisms on our books, at least. And why not?\u201d<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Ultimately, it\u2019s about simply understanding how a baby sea turtle can enter the ocean alone, make a 10,000-mile migration and return to the beach where it was born, or how swarms of monarch butterflies find their way from Canada to Mexico, generation after generation.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u201cI fell in love with the question, and I just really want to know the answer,\u201d Keays says. \u201cI\u2019m annoyed that it\u2019s taken this long.\u201d<\/span>"}]},"_links":{"self":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256090","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/users\/32"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/comments?post=256090"}],"version-history":[{"count":10,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256090\/revisions"}],"predecessor-version":[{"id":256363,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/posts\/256090\/revisions\/256363"}],"acf:post":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/contributor\/107167"}],"acf:term":[{"embeddable":true,"taxonomy":"post_tag","href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags\/266"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media\/256102"}],"wp:attachment":[{"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/media?parent=256090"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/categories?post=256090"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thetransmitter.org\/wp-json\/wp\/v2\/tags?post=256090"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}]