Professor St. Clair tells her class that compared with stage 3 NREM, stage 4 NREM
A. has a larger proportion of delta waves.
B. includes more sleep spindles.
C. has a larger proportion of theta waves.
D. is often accompanied by myoclonia.
Answer: A
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What type of drug is alcohol?
a. opiate b. analgesic c. central nervous system stimulant d. central nervous system depressant
In Muzafer Sherif's research with 11-year-old boys at a summer camp in Robber's Cave, it was found that ____ tended to increase prejudice, while ____ tended to reduce it
a. competition; superordinate goals b. increased contact; superordinate goals c. superordinate goals; increased contact d. competition; increased contact
Imagery neurons respond to
a. all visual images. b. only visual images in a specific category. c. an actual visual image as well as imagining that same image. d. concrete mental images but not abstract mental images.
While the secular trend toward earlier first menstruation has stopped in most industrialized nations, in the United States
A) the trend has slightly reversed due to improved nutrition. B) soaring rates of overweight and obesity are responsible for a modest, continuing trend. C) improved health care is responsible for a modest, continuing trend. D) the trend has slightly reversed due to improved health care.