In a patient who has undergone corpus callosotomy,the failure of interhemispheric transfer of information is best demonstrated by:
A)A task in which the patient uses both hands.
B)A task that requires eye-hand coordination while one eye is covered.
C)A task in which the patient is asked to identify an object placed to his or her left.
D)A task in which the patient is asked to identify an object only by touch with the left hand.
E)A task in which the patient is asked to identify an object only by touch with the right hand

Question

Quizplus · Accepted Answer

Corpus callosotomy involves severing the corpus callosum, which connects the two hemispheres of the brain. This procedure can impair the transfer of sensory information between hemispheres. Since the left hand is controlled by the right hemisphere, and sensory information processed in the right hemisphere cannot easily be transferred to the left hemisphere (where language and speech processing predominantly occur), a task requiring identification of an object by touch with the left hand best demonstrates the failure of interhemispheric transfer of information.

In a Patient Who Has Undergone Corpus Callosotomy,the Failure of Interhemispheric