What do studies of the relationship between exercise and sleep reveal about the properties of sleep?
A. Although sleep provides the body with rest, it seems unlikely that this is the primary function of sleep.
B. Exercise increases overall sleep time, decreases the efficiency of stage two sleep, and increases time spent in REM sleep.
C. Exercise vastly improves the quality of REM sleep, but does not extend overall sleep time.
D. Reduced exercise is associated with increased sleep time.
Answer: A
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Infants who weigh less than 2,500 grams (about 5½ pounds) at birth are classified as which of the following?
A. low-birthweight infants B. preterm infants C. small for gestational age D. very low birthweight infants
Schachter (1959) examined the preferences of participants who were expecting to receive a series of painful electric shocks. He found that these participants preferred to wait in a room
a. by themselves. b. with participants who were not expecting shocks. c. with participants who were also expecting shocks. d. with participants who had already received shocks.
Alice was attacked by a pig when she was a child, and developed a strong phobia of pigs. Whenever she sees a pig—whether on a farm, in a zoo, or even in a movie—she has a strong and immediate automatic reaction. This reaction is best classified as a(n) ____
a. emotion b. affect c. mood d. attitude
By modern scientific standards, which philosopher would have the LEAST difficulty resolving the mind–body problem?
A) Plato B) Hobbes C) Socrates D) Descartes