Regarding the experience of pain, which of the following statements is TRUE?
a. Acupuncture has been shown to cure diseases and produce long-term pain relief in 80 percent of the people tested.
b. Phantom limb pain occurs because the neuromatrix interprets other sensory experiences as pain from the missing limb.
c. Acupuncture needles activate the large pain fibers, which close the spinal gate directly.
d. Phantom limb pain is best explained by the gate control theory.
ANSWER: b
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