Leah Shaffer is a freelance science writer based in St. Louis, Missouri. Her stories have appeared in publications such as Wired, The Atlantic, Discover, NOVA Next and UnDark. She writes about biology, medicine and the weird critters inside and outside the human body.
Leah Shaffer
Freelance writer
From this contributor
Supplements, worms and stool: How families are trying to game the gut to treat autism traits
Scientists are playing catch-up as microbiome-based treatments for autism proliferate.
Supplements, worms and stool: How families are trying to game the gut to treat autism traits
By
Leah Shaffer
26 June 2019 | 16 min read
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Early experience reshapes zebrafish retinal cells, alters behavior
The cells undergo a classic form of plasticity previously thought to occur only in downstream visual circuits.
Early experience reshapes zebrafish retinal cells, alters behavior
The cells undergo a classic form of plasticity previously thought to occur only in downstream visual circuits.
By
Siddhant Pusdekar
13 August 2026 | 0 min watch
Loss of interneuron plasticity may be shared hallmark of neurodevelopmental conditions
Restoring an experience-dependent interneuron plasticity gene in adulthood improves memory and cuts seizures in CNTNAP2 knockout mice, a new study shows.
Loss of interneuron plasticity may be shared hallmark of neurodevelopmental conditions
Restoring an experience-dependent interneuron plasticity gene in adulthood improves memory and cuts seizures in CNTNAP2 knockout mice, a new study shows.
By
Claudia López Lloreda
12 August 2026 | 5 min read
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
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.
By
Holly Barker
12 August 2026 | 5 min read