The part of the body that is least able to distinguish a one-point stimulus from a two-point stimulus is the
A) fingertip.
B) palm of the hand.
C) back.
D) All areas of the body do equally well.

Question

Quizplus · Accepted Answer

The back is the least sensitive area of the body to distinguish between one-point and two-point stimuli. This is due to the fact that the receptors in this area are spread farther apart and have larger receptive fields, making it harder to distinguish between close stimuli.

The Part of the Body That Is Least Able to Distinguish