What sound characteristics can be compared between the two ears to locate the source of the sound?
a. sound shadows and frequency
b. frequency and amplitude
c. loudness and timing
d. timbre and rhythm
c
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What causes the largest number of accidental deaths among children in the United States?
a. Fires b. Drowning c. Automobile accidents d. Poisoning
Comparisons of hormone production in boys and girls show that:
a. before puberty, boys have higher levels of estrogen than do girls. b. from puberty on, boys and girls produce the same amounts of androgens and estrogens. c. before puberty, girls have higher levels of estrogen than do boys. d. from puberty on, boys produce more androgens and girls produce more estrogens.
Which of the following has been cited as potentially causing psychopathic behavior?
A. A deficiency in the left hemisphere that impairs executive function B. Low autonomic arousal C. Faster brain waves than normal D. Both A and B
A technique for relieving the discomfort to migraine headaches by regulating blood flow is
______ biofeedback. a. muscular c. epidural b. thermal d. vascular