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
Astrocytes in mouse amygdala encode emotional state
The glial cells’ activity reliably tracks with freezing, hesitancy and other behaviors reminiscent of anxiety.
Astrocytes in mouse amygdala encode emotional state
By
Holly Barker
24 March 2026 | 4 min read
Revised statistical bar extracts less-common variants from autism genetics studies
Adjusting genetic analyses could help plug autism’s heritability gap, according to a new preprint.
Revised statistical bar extracts less-common variants from autism genetics studies
By
Holly Barker
12 March 2026 | 4 min read
Astrocytes orchestrate oxytocin’s social effects in mice
The cells amplify oxytocin—and may be responsible for sex differences in social behavior, two preprints find.
Astrocytes orchestrate oxytocin’s social effects in mice
By
Holly Barker
4 March 2026 | 5 min read
Aging neurons outsource garbage disposal, clog microglia
Degradation-resistant proteins pass from neurons to glial cells in a process that may spread protein clumps around the brain, according to a study in mice.
Aging neurons outsource garbage disposal, clog microglia
By
Holly Barker
10 February 2026 | 5 min read
‘Tour de force’ study flags fount of interneurons in human brain
The newly discovered cell type might point to the origins of the inhibitory imbalance linked to autism and other conditions.
‘Tour de force’ study flags fount of interneurons in human brain
By
Holly Barker
29 January 2026 | 4 min read
Explore more from The Transmitter
Cortical evolution, ZBTB18, and more
Here is a roundup of autism-related news and research spotted around the web for the week of 30 March.
Cortical evolution, ZBTB18, and more
Here is a roundup of autism-related news and research spotted around the web for the week of 30 March.
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Jill Adams
31 March 2026 | 2 min read
Letter asks Congress for nearly $500 million to sustain BRAIN Initiative
The one-time boost would help counter the planned end this year to one of the program’s long-standing funding streams, which will result in a $195 million drop in funding for fiscal year 2027.
Letter asks Congress for nearly $500 million to sustain BRAIN Initiative
The one-time boost would help counter the planned end this year to one of the program’s long-standing funding streams, which will result in a $195 million drop in funding for fiscal year 2027.
By
Angie Voyles Askham
31 March 2026 | 3 min read
How to teach programming in the age of AI
Scientists and educators are concerned about students using artificial intelligence to shortcut their learning. But there are also opportunities, especially when it comes to teaching neuroscience students how to code.
How to teach programming in the age of AI
Scientists and educators are concerned about students using artificial intelligence to shortcut their learning. But there are also opportunities, especially when it comes to teaching neuroscience students how to code.
By
Ashley Juavinett
30 March 2026 | 8 min read