Compared to adults, infants spend __________ in REM sleep.
A. less time
B. more time
C. the same amount of time
D. only the first half of the night
Answer: B
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Marjorie has just experienced a traumatic event; she is feeling cut off from herself and her environment and reports feeling like a robot. A mental health professional would say that Marjorie is experiencing
a. derealization. b. depersonalization. c. amnesia. d. flashbacks.
Compared to nonhypnotized subjects, those hypnotized patients undergoing surgery:
A. require less pain mediation B. require more pain mediation C. had longer recovery periods D. reported more anxiety after the surgery
The heritability coefficient of extraversion is approximately .5, which means that:
A) a child psychologist can predict with 50% accuracy a client's extraversion level if she knows the extraversion levels of the child's parents. B) children inherit 50% of the tendencies toward extraversion or introversion from their mother, and 50% from their father. C) in any given child, half of extraversion is caused by genetic factors and half is caused by the environment. D) in a large group of children, 50% of the variability in extraversion scores would be due to genetic factors.
The purpose of stimulation research is to a. identify stimuli that activate a particular part of the brain
b. identify the function of a part of the brain. c. observe individual ion channels in the membranes of neurons. d. observe the activity of a particular part of the brain.