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Split Brain
A brain in which there is no connection between the left and right hemispheres. Split-brain surgery involves the cutting of the connective tissue between the hemispheres. It is used as an attempt to alleviate the severity of epileptic seizures when all other treatments have failed. Research involving split-brain patients, that is, patients whose hemispheres have been surgically separated, provides information about what type of information is processed and stored in the left and right hemispheres. For example, research on split-brain individuals has indicated that incoming information into the brain is processed contralaterally— that is, in the opposite half of the brain where it normally is sent—and cannot be transferred or identified. Furthermore, research has indicated that the left side of the brain is predominant in ...