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
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
Most neurons in mouse cortex defy functional categories
The majority of cells in the cerebral cortex are unspecialized, according to an unpublished analysis—and scientists need to take care in naming neurons, the researchers warn.
Most neurons in mouse cortex defy functional categories
By
Holly Barker
7 January 2025 | 5 min read
Impaired molecular ‘chaperone’ accompanies multiple brain changes, conditions
Rare genetic variants in a protein-folding complex contribute to a spectrum of phenotypes that encompass brain malformations, intellectual disability, autism and seizures, according to a new “hallmark” study.
Impaired molecular ‘chaperone’ accompanies multiple brain changes, conditions
By
Holly Barker
12 December 2024 | 5 min read
Expanding set of viral tools targets almost any brain cell type
Harmless viruses that encase short noncoding DNA elements called enhancers enable cell-type-specific gene delivery across the central nervous system in rodents and primates.
Expanding set of viral tools targets almost any brain cell type
By
Holly Barker
19 November 2024 | 2 min watch
START method assembles brain’s wiring diagram by cell type
The new technique mapped the interactions of about 50 kinds of inhibitory neurons in the mouse visual cortex in finer detail than previous approaches.
START method assembles brain’s wiring diagram by cell type
By
Holly Barker
31 October 2024 | 5 min read
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Neuroscientists fear Trump’s DEI order may tank diversity-focused grants
Programs that prioritize diversity, equity and inclusion in the field may be at risk, leaving researchers in a “holding pattern,” according to one grant recipient.
Neuroscientists fear Trump’s DEI order may tank diversity-focused grants
Programs that prioritize diversity, equity and inclusion in the field may be at risk, leaving researchers in a “holding pattern,” according to one grant recipient.
By
Angie Voyles Askham, Claudia López Lloreda
24 January 2025 | 5 min read
Remembering the life of neuropharmacologist Floyd Bloom
The co-author of the classic textbook “The Biochemical Basis of Neuropharmacology” and pioneer in studying the roles of neurotransmitters in the brain died on 8 January at 88 years old.
Remembering the life of neuropharmacologist Floyd Bloom
The co-author of the classic textbook “The Biochemical Basis of Neuropharmacology” and pioneer in studying the roles of neurotransmitters in the brain died on 8 January at 88 years old.
By
Sydney Wyatt
24 January 2025 | 7 min read
Newly characterized striatal circuits add twist to ‘go/no-go’ model of movement control
The two novel pathways control dopamine release in opposing ways and may link motivation and mood to action, a new study shows.
Newly characterized striatal circuits add twist to ‘go/no-go’ model of movement control
The two novel pathways control dopamine release in opposing ways and may link motivation and mood to action, a new study shows.
By
Claudia López Lloreda
24 January 2025 | 4 min read