When comparing two different peripheral body areas, you notice that a small area of your index finger seems to have greater nerve sensitivity than a comparably sized region of your upper arm. How do you think this will be reflected in the somatosensory area of your brain?
A. The brain areas for finger and upper arm will be equal because they reflect comparable areas of skin.
B. The finger brain area will be smaller because your finger is smaller than your upper arm.
C. The finger brain area will be larger because it has greater nerve sensitivity than your upper arm.
D. The brain areas for finger and upper arm will be equal but they will be located on opposite hemispheres.
Answer: C
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