Split-brain operations are used to treat seizures because
A)seizures require coordinated activity in both hemispheres.
B)seizures still occur, but only half the body is involved.
C)electrical disturbances confined to one hemisphere may not reach threshold for observable clinical symptoms.
D)there are no other available treatments.

Question

Split-brain operations are used to treat seizures because 
A)seizures require coordinated activity in both hemispheres. 
B)seizures still occur, but only half the body is involved. 
C)electrical disturbances confined to one hemisphere may not reach threshold for observable clinical symptoms. 
D)there are no other available treatments.

Quizplus · Accepted Answer

During split-brain operations, the corpus callosum, the major pathway connecting the two brain hemispheres, is cut. This allows electrical disturbances, which cause seizures, to be confined to one hemisphere and reduce the likelihood of observable symptoms. By disconnecting the two hemispheres, the seizures can be prevented from spreading to the other side and causing widespread neurological problems. While other treatments exist, split-brain operations are sometimes used when other treatments have been unsuccessful.

Split-Brain Operations Are Used to Treat Seizures Because