Erika Check Hayden

Freelance writer

Erika Check Hayden is an award-winning, San Francisco-based science and technology reporter. She writes for Nature, and on a freelance basis for a variety of publications, and is a lecturer in the University of California, Santa Cruz Science Communication Program.

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Cortical organoids.

Five-year-old human brain organoids aged on schedule

The cultured spheres typically mimic only prenatal development, but the five-year-old ones grown in Paola Arlotta’s lab acquired postnatal features.

By Claudia López Lloreda
19 August 2026 | 5 min read

Brainstem neurons add new element to ‘already complex’ anxiety circuitry

Precise optogenetic modulation of a medullary neuron population reveals their role in anxiety-like behaviors.

By Sarah Thau
19 August 2026 | 0 min watch