Tomek is a split-brain patient who is staring at a fixation point in the middle of a screen.Suddenly,an apple is flashed on the left side of the screen and a hairbrush is flashed on the right.Tomek is then presented with a tray containing an apple,a hairbrush,a comb,and an orange.If he is asked to point to the object he saw,what is he likely to do?
A) He will point to the hairbrush with his right hand and his left hand will do nothing.
B) He will point to the hairbrush with his right hand and the apple with his left.
C) He will point to the apple with his right hand and the hairbrush with his left hand.
D) He will point to the apple with his right hand and his left hand will do nothing.

Question

Quizplus · Accepted Answer

In split-brain patients, the information presented in the left side of the visual field is processed by the right hemisphere of the brain and vice versa. Therefore, when the apple is flashed on the left side of the screen, it is processed by the right hemisphere, which is unable to communicate verbally. Similarly, when the hairbrush is flashed on the right side of the screen, it is processed by the left hemisphere, which has control over the right hand. Hence, Tomek will point to the apple with his right hand (controlled by the left hemisphere) and the hairbrush with his left hand (controlled by the right hemisphere).

Tomek Is a Split-Brain Patient Who Is Staring at a Fixation