After surgery,split-brain patients typically seem very normal.Why?
A) It takes time for the brain to realize what has happened; the patients soon become disorganized.
B) Neurogenesis occurs rapidly and repairs the brain after the surgery.
C) While the two hemispheres cannot talk to each other without external cues, the incoming perceptions provide sufficient cues for normal functioning.
D) The two hemispheres usually fight for control; once the surgery occurs, the brain relaxes as each hemisphere can control itself.

Question

Quizplus · Accepted Answer

When the two hemispheres of the brain are surgically split, they can no longer communicate directly with each other. However, incoming perceptions from the senses still provide enough cues for each hemisphere to function normally. For example, if a split-brain patient is presented with a picture of an object in their right visual field (processed by the left hemisphere), they can identify and name the object. If the same picture is presented in their left visual field (processed by the right hemisphere), they may not be able to verbally identify it, but can still demonstrate recognition through nonverbal means (such as pointing with their left hand). Thus, split-brain patients may appear outwardly normal because each hemisphere can operate independently and make use of external cues.

After Surgery,split-Brain Patients Typically Seem Very Normal.Why