Holly Barker is a freelance writer specializing in biology, medicine and psychology. She has a Ph.D. in clinical neuroscience from King’s College London in the United Kingdom and a B.Sc. degree in biochemistry from the University of Manchester. She has previously written for Discover and BioNews. She is based in London.
Holly Barker
Contributing writer
From this contributor
Number of autism-linked genes more than triples in new analyses
In addition to a new preprint that expands the list of genes tied to the condition, two related analyses reveal how variants in those genes contribute to genetic susceptibility.
Number of autism-linked genes more than triples in new analyses
By
Holly Barker
8 October 2026 | 6 min read
Cerebellar neurons reorient brain activity to differentiate similar behaviors
The findings provide a new perspective on how granule cells help to generalize learning across tasks.
Cerebellar neurons reorient brain activity to differentiate similar behaviors
By
Holly Barker
29 September 2026 | 4 min read
Polarized cortical organoids mimic the brain’s regional organization
The organoids show region-specific gene-expression changes that match those observed during fetal development.
Polarized cortical organoids mimic the brain’s regional organization
By
Holly Barker
24 September 2026 | 4 min read
Neuropsychiatric MRI brain signatures fail reproducibility test
Small neuroimaging studies are unlikely to capture consistent anatomical changes related to conditions such as autism, schizophrenia and mood disorders, according to a new “wake-up call” study.
Neuropsychiatric MRI brain signatures fail reproducibility test
By
Holly Barker
12 August 2026 | 5 min read
Cortical territories compete in developmental space race
Sensory and association regions are established through a reciprocal process, according to a new model of cortical development.
Cortical territories compete in developmental space race
By
Holly Barker
30 July 2026 | 5 min read
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Amid funding uncertainty, graduate neuroscience programs in the U.S. adapt
The Transmitter surveyed 50 graduate program directors to learn how they’re faring. Securing labs for new students is one of the greatest concerns.
Amid funding uncertainty, graduate neuroscience programs in the U.S. adapt
The Transmitter surveyed 50 graduate program directors to learn how they’re faring. Securing labs for new students is one of the greatest concerns.
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Emily Singer
9 November 2026 | 15 min read
The changing nature of the neuroscience Ph.D.
The best science can only be sustained by a steady influx of early-stage scientists and the innovative ideas they bring, says Diane Lipscombe. She reflects on the loss of international students, the value of training grants, and the challenges that lie ahead for graduate education.
The changing nature of the neuroscience Ph.D.
The best science can only be sustained by a steady influx of early-stage scientists and the innovative ideas they bring, says Diane Lipscombe. She reflects on the loss of international students, the value of training grants, and the challenges that lie ahead for graduate education.
By
Emily Singer
9 November 2026 | 7 min read
Rethinking neuroscience graduate education in the age of AI
What knowledge from traditional training protocols needs to be maintained, what can be discarded, and what new types of training should be introduced? Six neuroscientists weigh in.
Rethinking neuroscience graduate education in the age of AI
What knowledge from traditional training protocols needs to be maintained, what can be discarded, and what new types of training should be introduced? Six neuroscientists weigh in.
By
Mark Goldman
9 November 2026 | 17 min read