Opium and its derivatives __________.
A. typically take several months to produce physiological cravings
B. cause withdrawal symptoms in addicts within approximately eight hours of the last dose
C. always cause near fatal withdrawal symptoms
D. cause amnesia with long-term use
Answer: B
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Your psychology teacher wants you to wake up your roommate once this evening and ask for a dream report. You do not have use of sophisticated equipment. How will you determine when your roommate is dreaming?
a) Wait for evidence of sleeptalking. b) Look for rapidly moving eyes, which can be seen beneath the closed eyelids. c) Using a thermometer, determine when core body temperature drops significantly. d) Wait until you detect movements in the large muscles of the body such as the legs.
An assembly-line worker nods off during a night shift; co-workers awaken him after no more than 5 minutes. What stage of sleep was this individual in?
a) Stage 1 b) Stage 0 c) Stage 3 d) Stage 4