Sing Tung is given a new drug. As a result, his normal sleep cycle is altered. He moves from stage 0 to stages 1-2-3-4 and then abruptly awakens. The experimenter has recorded his brain activity. Which of the following is not characteristic of Sing Tung's altered sleep cycle?
a. ?A great deal of dream activity was present.
b. ?Some alpha waves were present.
c. ?Many high amplitude, slow brain waves were present.
d. ?Muscle tone was similar to the awake stage.
ANSWER:
a
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