After split-brain surgery,Jerad is able to verbally identify an image flashed to his right visual field,but is unable to name the object when it is presented to his left visual field.Why is Jerad able to name the objects under one condition but not the other?
A) His left hemisphere has been removed in the surgery. The left hemisphere controls the right side of the body, and so he is unable to move his mouth to name objects.
B) His right hemisphere has been removed in the surgery. The right hemisphere controls the right side of the head, and so he is unable to move his mouth to name objects.
C) The corpus callosum has been severed. The right hemisphere language areas are unable to process visual information from the right eye, but are able to process visual information from the left eye.
D) The corpus callosum has been severed. The left hemisphere language areas are unable to process visual information from the left visual field, but are able to process visual information from the right visual field.

Question

Quizplus · Accepted Answer

The corpus callosum has been severed, which means that communication between the left and right hemispheres has been disrupted. In this case, the left hemisphere language areas are unable to process visual information from the left visual field, but are able to process visual information from the right visual field. This results in Jerad being able to verbally identify an image presented to his right visual field (processed by his left hemisphere), but being unable to name the object when it is presented to his left visual field (processed by his right hemisphere).

After Split-Brain Surgery,Jerad Is Able to Verbally Identify an Image