split brain

a brain in which the two cerebral hemispheres have been separated by partial or complete destruction of the corpus callosum (see commissurotomy), thereby blocking direct communication between them. Split-brain surgery is used to treat otherwise intractable epilepsy, because it prevents cortical seizure activity from spreading between the hemispheres. Given the extensive communication between the two hemispheres in the intact brain, disruption of this activity in split-brain conditions is of considerable scientific interest. Also called divided brain.

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Psychology term of the day

November 21st 2024

brooding compulsion

an irresistible drive to mentally review trivial details or ponder abstract concepts as a means of reducing distress or preventing some dreaded event or situation.