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
Split gene therapy delivers promise in mice modeling Dravet syndrome
The new approach overcomes viral packaging limitations by delivering SCN1A piecemeal and stitching it together in target cells.
Split gene therapy delivers promise in mice modeling Dravet syndrome
By
Holly Barker
10 April 2025 | 5 min read
PTEN problems underscore autism connection to excess brain fluid
Damaging variants in the autism-linked gene cause congenital hydrocephalus—a buildup of cerebrospinal fluid in the brain—by turbocharging a downstream signaling pathway that promotes the growth of cells, according to a new study.
PTEN problems underscore autism connection to excess brain fluid
By
Holly Barker
3 April 2025 | 4 min read
Cell ‘fingerprints’ identify distinct cortical networks
These networks align with different assemblages of cells, a finding that could reveal how cellular diversity influences brain function, according to a new study.
Cell ‘fingerprints’ identify distinct cortical networks
By
Holly Barker
28 February 2025 | 4 min read
Structure of striatum varies by sex in autistic children
The changes could reflect different developmental trajectories between boys and girls with autism, a new study suggests.
Structure of striatum varies by sex in autistic children
By
Holly Barker
27 February 2025 | 4 min read
X marks the spot in search for autism variants
Genetic variants on the X chromosome, including those in the gene DDX53, contribute to autism’s gender imbalance, two new studies suggest.
X marks the spot in search for autism variants
By
Holly Barker
16 January 2025 | 6 min read
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Better technologies to stably monitor cell populations over long periods of time make it possible to study neural coding and dynamics in the human brain.
Tracking single neurons in the human brain reveals new insight into language and other human-specific functions
Better technologies to stably monitor cell populations over long periods of time make it possible to study neural coding and dynamics in the human brain.
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28 April 2025 | 7 min read
Mitochondrial ‘landscape’ shifts across human brain
Evolutionarily newer regions sport mitochondria with a higher capacity for energy production than older regions, according to the first detailed map of the organelles in a tissue slice, adding to mounting evidence that the brain features a metabolic gradient.
Mitochondrial ‘landscape’ shifts across human brain
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Claudia López Lloreda
25 April 2025 | 6 min read
Expediting clinical trials for profound autism: Q&A with Matthew State
Aligning Research to Impact Autism, a new initiative funded by the Sergey Brin Family Foundation, wants to bring basic science discoveries to the clinic faster.
Expediting clinical trials for profound autism: Q&A with Matthew State
Aligning Research to Impact Autism, a new initiative funded by the Sergey Brin Family Foundation, wants to bring basic science discoveries to the clinic faster.
By
Lauren Schenkman
24 April 2025 | 8 min read