Describe the ob mouse, and discuss the impact of leptin in this animal.
What will be an ideal response?
The ob mouse is a genetic knockout that does not have the OB gene. The OB gene is responsible for making leptin, a long-term satiety signal. Given that these animals do not have this long-term satiety signal, they have a tendency to overeat, have low metabolism, and do not engage in exercise. Over time, they become obese. Interestingly, injection with leptin will return these mice to their normal weight over time. This demonstrates that leptin is an important signal for weight maintenance.
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When Francine formulated her New Year's resolutions for her health, finances, and relationships, she probably used __________ to formulate her goals and subgoals for each resolution
a. analogous application c. an algorithm b. trial and error d. means-ends analysis
When people make attributions, research has suggested that they rely less on consensus information than the covariation model suggests, and rely more heavily on
a. consistency and distinctiveness. b. consistency and additivity. c. distinctiveness and ambiguity. d. additivity and circumstances.
Which of the following statements about falling in late adulthood is true?
A) While falls in old age can be devastating, only about 15 percent of adults over age 80 have experienced a fall. B) Use of medication that affects mental processing decreases the risk of falling. C) When older adults do fall, serious injury results about 70 percent of the time. D) Falling can impair health indirectly by promoting fear of falling.
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