Multiple Choice
According to gate control theory, __________.
A) pain sensations must pass through a gate in the skin in order to be processed as a pain signal
B) pain sensations must pass through a neural "gate" in order to reach the brain, and thus can be blocked by neurons that inhibit this signal
C) the afterimage problem is due to a malfunction in the pathway or "gate" that controls which color receptors are stimulated
D) opponent, or opposite colors, are processed via a system much like a neural gate
Correct Answer:

Verified
Correct Answer:
Verified
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