corpus callosotomy

medicine

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July 22, 2026

Quick Summary

Corpus callosotomy is a surgical procedure that involves severing the corpus callosum, the bundle of nerve fibers connecting the left and right cerebral hemispheres of the brain. This procedure is primarily performed to treat severe, uncontrollable epilepsy by preventing seizures from spreading between hemispheres.

The corpus callosum facilitates communication between the hemispheres, with each side specializing in certain tasks. The left hemisphere typically handles analytical tasks and language, while the right is more adept at spatial reasoning. When this connection is severed, it can lead to "split-brain syndrome," characterized by neurological abnormalities. Patients may experience difficulties with tasks requiring interdependent hand movements or with naming objects held in their left hand due to impaired interhemispheric communication.12

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split-brain syndrome
Causes of split-brain syndrome
…a surgical procedure known as corpus callosotomy. Rarely performed in the 21st century (having been replaced largely by drug treatments and other procedures), this operation is reserved as a last measure of treatment for extreme and uncontrollable forms of epilepsy in which violent seizures spread from one side of the…
Read More
…a surgical procedure known as corpus callosotomy. Rarely performed in the 21st century (having been replaced largely by drug treatments and other procedures), this operation is reserved as a last measure of treatment for extreme and uncontrollable forms of epilepsy in which violent seizures spread from one side of the…
Read More