We flash a picture of a tree to the right brain of a split-brain patient and a picture of a dog to his left brain. If we ask the split-brain patient to draw what he saw using his left hand (out of sight), he will
A)draw a dog.
B)draw a tree.
C)draw both a dog and a tree.
D)be unable to draw either picture.

Question

Quizplus · Accepted Answer

The left hand is controlled by the right hemisphere of the brain. In split-brain patients, where the corpus callosum is severed, each hemisphere can only process the information it receives directly. Since the picture of the tree was flashed to the right brain, and the left hand is controlled by the right brain, the patient would draw a tree.

We Flash a Picture of a Tree to the Right