Where is the circadian clock for sleep and waking located? Give one piece of evidence for this area being involved in circadian rhythms.
What will be an ideal response?
The circadian clock is located in the suprachiasmatic nucleus (SCN) of the hypothalamus. One piece of evidence for the SCN as the circadian clock is that rats with SCN lesions stop sleeping on a 24-hour cycle and instead sleep in smaller periods throughout the day. In addition, individual cells within the SCN maintain circadian rhythms even in isolation. The SCN's regulation of melatonin secretion by the pineal gland also lends support for the role of the SCN as a pacemaker.
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Suppose that in one study, breast-cancer patients write either about their feelings concerning their diagnosis or simply about the facts of their disease. For each group, the researchers track the number of contacts the women make with the health-care system for 60 days. In this study, the number of contacts is a(n) ______ variable.
A. dependent B. randomized C. independent D. control
According to the information about planning for retirement,
a. women are more likely than men to locate information about retirement benefits. b. many women think that their husband will take care of financial issues connected with retirement. c. because women usually receive adequate retirement benefits, they seldom look for this information prior to retirement. d. because companies are required to hold seminars about retirement benefits, almost all women are knowledgeable about these benefits.
Darley and Gross (1983) showed participants a video of a girl taking a reading test. They then asked participants to rate the girl's academic ability. These researchers found that participants rated her academic ability higher if they thought that she:
A) was from an affluent family. B) was from an extremely religious family. C) had struggled to overcome her family's poverty. D) was 10 years of age instead of 12 years of age.
According to Sandra Bem, which statement is FALSE regarding highly masculine men ("manly men"), highly feminine women, and androgynous individuals?
a. "Manly men" have been shown to have no difficulty in expressing warmth, playfulness, and concern. b. "Manly men" find it hard to accept emotional support from others, particularly women. c. Highly feminine women have difficulty being independent and assertive, even when these qualities are desirable. d. Androgynous individuals score higher in emotional intelligence.