In Nobel Prize research beginning in the 1960s, Roger W. Sperry and colleagues studied the effects of cutting the forebrain commissures in patients as a radical treatment for intractable epilepsy.

In the different rooms, the workings of the brain are illustrated by drawings of the men carrying out various tasks. The caption reads, “Imagine your brain as the executive branch of a big business.

A massive international study of more than 3,100 long COVID patients uncovered a striking divide in how brain-related symptoms are reported around the world. In the U.S., the vast majority of ...