Split-brain patients have had surgery to cut the?

corpus callosum, the bundle of neural fibers that connects the two hemispheres of the brain. This surgery is typically performed to alleviate severe epilepsy by preventing seizures from spreading between hemispheres. As a result, split-brain patients often exhibit unique cognitive and perceptual behaviors, as each hemisphere can process information independently, leading to difficulties in communication between them. This phenomenon has provided valuable insights into lateralization of brain functions.