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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Finding the Rett syndrome gene and ways to fix it
Kevin Mitchell talks with Huda Zoghbi about her work identifying the MECP2 gene, its role in the brain and therapies to address its dysfunction.
Finding the Rett syndrome gene and ways to fix it
Kevin Mitchell talks with Huda Zoghbi about her work identifying the MECP2 gene, its role in the brain and therapies to address its dysfunction.
By
Kevin Mitchell
21 September 2026 | 4 min read
Measuring plastic in the brain: Improving, but incomplete
Meanwhile, researchers are publishing papers without “sufficient quality control,” says analytical chemist Dušan Materić.
Measuring plastic in the brain: Improving, but incomplete
Meanwhile, researchers are publishing papers without “sufficient quality control,” says analytical chemist Dušan Materić.
By
Amber Dance
18 September 2026 | 9 min read
Incredible shrinking grant deadlines at the BRAIN Initiative
“A month is crazy,” says one former recipient, referring to a new funding opportunity’s timeline.
Incredible shrinking grant deadlines at the BRAIN Initiative
“A month is crazy,” says one former recipient, referring to a new funding opportunity’s timeline.
By
Brendan Borrell
17 September 2026 | 4 min read