The corpus callosum is responsible for

A) verbal processing.

B) relaying information between the right and left hemispheres.

C) speech production.

D) sleep.

The corpus callosum is a collection of axons in the central part of the brain which connects the two hemispheres - so the correct answer is B) : relaying information between the right and left hemispheres.

In patients with severe epilepsy this tissue can be cut through and they live then a life with two independent hemispheres - but surprisingly many of them can function without any problems.