Meet a mouse whose brain cortex is made up of human cells

Original publisher: MIT Technology Review (www.technologyreview.com)

Canonical URL: https://www.technologyreview.com/2026/09/16/1144210/meet-a-mouse-whose-brain-cortex-is-made-up-of-human-cells/

Summary excerpt

Multiple cameras tracked a mouse as it wandered around a small arena. A computer charted its position and speed, leaving Pong-like traces on a monitor. The reason to watch this rodent so carefully? Nearly half its brain volume had been replaced with human cells. The effort to mix the brain tissues of distant species…