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
Switching neural code may solve ongoing face-recognition debate
Face patch cells in macaque monkeys initially respond to images of any object but rapidly transition to attend to faces exclusively, a new study finds.
Switching neural code may solve ongoing face-recognition debate
By
Holly Barker
23 April 2026 | 5 min read
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
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What Trump’s psychedelics executive order means for basic neuroscience
The order provides a potential path to remove some psychedelic drugs from the strictest regulatory category, yet it “may not be the breakthrough the basic research community has been looking for,” says neuroscientist Shawn Lockery.
What Trump’s psychedelics executive order means for basic neuroscience
The order provides a potential path to remove some psychedelic drugs from the strictest regulatory category, yet it “may not be the breakthrough the basic research community has been looking for,” says neuroscientist Shawn Lockery.
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Calli McMurray
24 April 2026 | 4 min read
Liset de la Prida explains how neuron subtypes may control the activity of large neural populations, from manifolds to ripples
De la Prida's work analyzing the varieties of sharp wave ripples in the hippocampus led to her discovery that specific types of neurons control the properties of neural manifolds.
Liset de la Prida explains how neuron subtypes may control the activity of large neural populations, from manifolds to ripples
De la Prida's work analyzing the varieties of sharp wave ripples in the hippocampus led to her discovery that specific types of neurons control the properties of neural manifolds.
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Paul Middlebrooks
22 April 2026 | 104 min listen
At 25, INSAR needs to bring autism scientists together more than ever
As the International Society for Autism Research’s annual meeting in Prague this week celebrates its quarter-century anniversary, its president reflects on the field’s past successes, current challenges and needs for the future
At 25, INSAR needs to bring autism scientists together more than ever
As the International Society for Autism Research’s annual meeting in Prague this week celebrates its quarter-century anniversary, its president reflects on the field’s past successes, current challenges and needs for the future
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Brian Boyd
22 April 2026 | 5 min read