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
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
Diverse autism genes derail common developmental pathways
Multiple genetic mouse models initially show delayed cortical development, but the animals’ molecular trajectories diverge within weeks after birth, a new study finds.
Diverse autism genes derail common developmental pathways
By
Holly Barker
8 July 2026 | 5 min read
‘Push-pull’ recipe for neural wiring used in multiple brain regions
A versatile pair of proteins steers neurons toward their targets and helps establish the brain’s sensory maps, new studies suggest.
‘Push-pull’ recipe for neural wiring used in multiple brain regions
By
Holly Barker
5 June 2026 | 5 min read
Brain’s blue spot possesses unexpected structure-function ties
The spatial arrangement of neurons in the locus coeruleus of mice corresponds with the cells’ targets across the brain, according to a new study.
Brain’s blue spot possesses unexpected structure-function ties
By
Holly Barker
25 May 2026 | 4 min read
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Finally, a new route for the magnetic-sense field
Researchers have dueled for years over how the magnetic sense works. New data from monarch butterflies could finally help settle the debate.
Finally, a new route for the magnetic-sense field
Researchers have dueled for years over how the magnetic sense works. New data from monarch butterflies could finally help settle the debate.
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Calli McMurray
11 September 2026 | 16 min read
Sensory over-responsivity tied to autism, anxiety but not other conditions
Negative reactions to sensations track with certain neurodevelopmental traits in more than 15,000 children—pointing to shared neurobiological roots.
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Diana Kwon
10 September 2026 | 5 min read
Neuromechanical models deepen our understanding of animal motor control
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By
Auke Ijspeert
9 September 2026 | 0 min watch