The fact that cocaine use increased dopamine activation means that cocaine usage often results in symptoms that are similar to:
a. panic disorder.
b. depression.
c. schizophrenia.
d. post- traumatic stress disorder.
Answer: C
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Two-year-old Jerry loves to involve his parents in his playtime. Compared to his mother, Jerry's father is more likely to
a. pay visual attention to Jerry and to tell him stories. b. engage Jerry in unusual play, such as imitating him. c. engage Jerry in rough-and-tumble play. d. do all of these activities.
Which of the following organic explanations has been offered to explain the fraternal birth-order effect?
a. The fraternal birth-order effect has no organic explanation. It is simply a trend that has not been shown to have any real evidence or relevance to the discussion of sexual orientation. b. The Y-chromosome activates a gene more forcefully in each consecutive male birth, which is why this order effect applies to male and not female babies. c. The rules of biology state that the only way for two boys to be born consecutively is if there is a genetic mutation. This mutation is thought to explain the fraternal birth-order effect. d. There is a defensive maternal immune response that is triggered by foreign substances produced by each additional male fetus, and this immune response increases with each additional male pregnancy.
Which of the following characteristics is present in Klinefelter syndrome?
A. slender build, severe acne, and poor coordination B. Severe symptoms include a high-pitched voice, feminine body shape, breast enlargement, and infertility. C. short stature, small jaws, and extra folds of skin around the neck D. short, stocky build, and short, broad hands, often with an unusual crease in the palm
A researcher reviewed the research on physiological reactivity of people who are most susceptible to coronary disease. Which of the following is the best summary of that research?
a) These people exhibit low physiological reactivity. b) These people exhibit high physiological reactivity. c) During sleep, they exhibit more variable physiological reactivity. d) During periods of frustration, they exhibit more overt behaviors of their feelings.