Researchers took photographs of different faces, cut them in two, and pasted different halves together to form composite faces. The reconstructed photographs were flashed quickly to split-brain patients. It was found that the split-brain patients would:
A) name the person in the right part of the image and point with the right hand to the left image.
B) name the person in the left part of the image and point with the right hand to the left image.
C) name the person in the right part of the image and point with the left hand to the left image.
D) name the person in the left part of the image and point with the left hand to the right image.

Question

Quizplus · Accepted Answer

Split-brain patients have a severed corpus callosum, which connects the two hemispheres of the brain. This means that each hemisphere processes information independently. In the experiment, the right hemisphere (which controls the left hand) saw the left side of the image, while the left hemisphere (which controls the right hand) saw the right side of the image. Since language is primarily processed in the left hemisphere for most people, the patient would be able to verbally name the person in the right part of the image (left hemisphere) but would point to the left image with their left hand (controlled by the right hemisphere). Therefore, the answer is C) name the person in the right part of the image and point with the left hand to the left image.

Researchers Took Photographs of Different Faces, Cut Them in Two