Michael Gazzaniga is a prominent American neuroscientist known for his research on the brain's left and right hemispheres. He played a key role in the field of cognitive neuroscience, particularly through his studies on patients who underwent split-brain surgery to treat severe epilepsy. His work has helped to illuminate how different brain regions contribute to various cognitive functions. Gazzaniga is also the founder of the Sage Center for the Study of the Mind at the University of California, Santa Barbara. He has authored several influential books and articles, making significant contributions to our understanding of the relationship between brain function and behavior. His research continues to influence both science and philosophy.