Gazzaniga's Law

Gazzaniga's Law states that when the brain's hemispheres are disconnected, each half can operate independently with its own thoughts and perceptions. This often occurs in individuals who have had the corpus callosum (the bridge connecting the hemispheres) surgically severed to treat severe epilepsy. As a result, stimuli presented to one side of the brain are only processed by that hemisphere, leading each hemisphere to have separate awareness and responses. This phenomenon illustrates how different parts of the brain can function somewhat independently yet normally coordinate to produce unified perception and behavior in a typical brain.