headshot of Mark Shen

Mark Shen

Assistant professor of neuroscience and psychiatry
University of North Carolina at Chapel Hill

Mark Shen is assistant professor of neuroscience and psychiatry at the University of North Carolina at Chapel Hill.

Explore more from The Transmitter

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