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
Among brain changes studied in autism, spotlight shifts to subcortex
The striatum and thalamus are more likely than the cerebral cortex to express autism variants or bear transcriptional changes, two unpublished studies find.
Among brain changes studied in autism, spotlight shifts to subcortex
By
Holly Barker
11 December 2025 | 5 min read
Home makeover helps rats better express themselves: Q&A with Raven Hickson and Peter Kind
The “Habitat”—a complex environment with space for large social groups—expands the behavioral repertoire of rodent models, Hickson and Kind say.
Home makeover helps rats better express themselves: Q&A with Raven Hickson and Peter Kind
By
Holly Barker
4 December 2025 | 0 min watch
Constellation of studies charts brain development, offers ‘dramatic revision’
The atlases could pinpoint pathways that determine the fate of cells linked to neurodevelopmental conditions.
Constellation of studies charts brain development, offers ‘dramatic revision’
By
Holly Barker
5 November 2025 | 6 min read
Protein tug-of-war controls pace of synaptic development, sets human brains apart
Human-specific duplicates of SRGAP2 prolong cortical development by manipulating SYNGAP, an autism-linked protein that slows synaptic growth.
Protein tug-of-war controls pace of synaptic development, sets human brains apart
By
Holly Barker
23 October 2025 | 7 min read
Worms help untangle brain structure/function mystery
The synaptic connectome of most animals bears little resemblance to functional brain maps, but it can still predict neuronal activity, according to two preprints that tackle the puzzle in C. elegans.
Worms help untangle brain structure/function mystery
By
Holly Barker
29 August 2025 | 7 min read
Explore more from The Transmitter
The Transmitter’s most-read neuroscience book excerpts of 2025
Books by Nachum Ulanovsky, Nicole Rust, and Andrew Iwaniuk and Georg Striedter made the list of some of the year's most engaging neuroscience titles.
The Transmitter’s most-read neuroscience book excerpts of 2025
Books by Nachum Ulanovsky, Nicole Rust, and Andrew Iwaniuk and Georg Striedter made the list of some of the year's most engaging neuroscience titles.
By
The Transmitter
24 December 2025 | 2 min read
Neuroscience’s leaders, legacies and rising stars of 2025
Here are seven stories from the past year about some of the field’s most engaging figures.
Neuroscience’s leaders, legacies and rising stars of 2025
Here are seven stories from the past year about some of the field’s most engaging figures.
By
The Transmitter
24 December 2025 | 2 min read
The Transmitter’s top news articles of 2025
Check out some of our most-read stories, covering neuroscience funding and policy changes in the United States, and methodological issues in high-profile neuroscience papers.
The Transmitter’s top news articles of 2025
Check out some of our most-read stories, covering neuroscience funding and policy changes in the United States, and methodological issues in high-profile neuroscience papers.
By
The Transmitter
24 December 2025 | 3 min read