split-brain research

n. 1. Any study conducted on a brain in which the cerebral hemispheres have been partially disconnected by cutting the corpus callosum, which is the largest of the three major connections between the two sides of the cortex. It has largely found that the two halves of the brain have both shared and specialized functions in humans. In men more than in women, the left hemisphere is more active and quick to process verbal material and the right is better at spatial processing.