Michael S. Gazzaniga, one of the most important neuroscientists of the twentieth century, gives us an exciting behind-the-scenes look at his seminal work on that unlikely couple, the right and left brain.

Part 1: Discovering the brain. Diving into science ; Discovering a mind divided ; Searching for the brain's Morse code -- Part 2: Hemispheres together and apart. Unmasking more modules ; Brain imaging confirms split-brain surgeries ; Still split -- Part 3: Evolution and integration. The right brain has something to say ; Stately living and a call to service -- Part 4: Brain layers. Layers and dynamics : seeking new perspectives.