born June 3, 1924, Uppsala, Swed.
Swedish neurobiologist.
After earning his medical degree in Sweden, he moved to the U.S., where he joined David Hubel in investigating brain function. By analyzing the flow of nerve impulses from the eye in laboratory animals, they detected many structural and functional details of the visual cortex, in the occipital lobes of the cerebral cortex. Their studies of the effects of visual impairments in young animals lent strong support to the view that prompt surgery is crucial to correct certain eye defects in newborn children. The two shared a 1981 Nobel Prize with Roger Sperry .