During brain surgery, the superior portion of the postcentral gyrus of a patient is stimulated. What do you expect the patient to do?

A) Flex his fingers
B) Talk to the surgeon
C) Smile
D) Feel pressure on his toes
E) Move his hand

The postcentral gyrus is the primary somatosensory cortex, responsible for processing tactile and proprioceptive information. The superior portion of the postcentral gyrus corresponds to the lower part of the body, including the toes, hence stimulating this area would likely result in the sensation of pressure on the toes.