Carrie Arnold


Carrie Arnold is a Virginia-based freelance science journalist who covers many aspects of the living world. She’s a contributing editor at NOVA Next, and has also written for Mosaic, National Geographic, Aeon, Nautilus, Scientific American and Women’s Health. She is also the author of “Decoding Anorexia: How Breakthroughs in Science Offer Hope for Eating Disorders.”

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Are computational complexity principles relevant for explaining brain activity?

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By Paul Middlebrooks
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Illustration of cells converting from fibroblasts to myoblasts.

This paper changed my life: Learning the molecular rules of cell identity

A 1987 Cell paper showed that a single transcription factor could turn fibroblasts into muscle cells. The work inspired Ardem Patapoutian to think about the molecular codes that define neuronal subtypes.

By Ardem Patapoutian
17 June 2026 | 6 min read

Leucovorin saga, and more

Here is a roundup of autism-related news and research spotted around the web for the week of 15 June.

By Jill Adams
16 June 2026 | 2 min read