The hormone melatonin helps synchronize the sleep-wake cycle by means of
a. stimulating the hypothalamus to activate the sleep cycle.
b. triggering the SCN when the amount of light striking the retina declines. c. traveling to the amygdala to activate the sleep cycle.
d. inducing feelings of drowsiness.
e. inducing alertness just preceding awakening.
d
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_____ involves a pervasive preoccupation with orderliness, perfectionism, and mental and interpersonal control to the point of distress:
A. Borderline personality disorder B. Antisocial personality disorder C. Dependent personality disorder D. Obsessive-compulsive personality disorder.
What is characteristic of people who are prone to blush?
a) They are likely to react angrily to neutral situations. b) They are especially concerned with evaluation by others. c) They tend to express a greater range of emotional reactions. d) They tend to have higher physiological reactions to all emotional stimuli.