In a neurophysiological investigation, a monkey makes an involuntary gesture when a portion of its brain is electrically stimulated. The area of the brain that was MOST likely stimulated is the:
A)front portion of the frontal lobe.
B)front portion of the parietal lobe.
C)rear portion of the frontal lobe.
D)rear portion of the parietal lobe.

Question

Quizplus · Accepted Answer

The rear portion of the frontal lobe contains the primary motor cortex, which is responsible for controlling voluntary movements. Stimulating this area can cause involuntary gestures or movements, as it directly influences muscle control.

In a Neurophysiological Investigation, a Monkey Makes an Involuntary Gesture