A 1997 study by Hemby and colleagues found that levels of dopamine in the nucleus accumbens were higher in rats that
a. were allowed to actively self-administer cocaine by pressing a lever.
b. were passively injected with cocaine by a researcher.
c. were injected with cocaine every time rats in the yoked condition received a cocaine injection.
d. worked for cocaine on variable ratio (VR) schedule of reinforcement.
e. worked for cocaine on a fixed interval (FI) schedule of reinforcement.
Answer: A
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People with an extraverted personality have what disadvantage, on average?
a. Increased probability of risky behaviors b. Greater risk of feeling lonely c. Increased risk of depression d. Tendency for other people to distrust them
What is meant by "brain specialization?"
a. Brain parts are flexible and can complete a variety of tasks. b. Certain brain areas have very specific functions. c. The brain can sometimes compensate for injuries. d. Certain brain areas remain dormant until they are needed.
Puff and his associates (2010) found that ____ predicted the highest levels of prosodies behavior
a. being non-heterosexual b. coming from a non-dominant religious background c. being from a lower social class d. being of a minority race or ethnicity
Alcoholics Anonymous (AA) meetings are "self-help" meetings comprised of people who are recovering from alcohol-related problems. These meetings employ a number of practices designed to keep people away from alcohol. Which of the practices listed below is most consistent with the research on cognitive dissonance theory and attitude change? That is, which of the following would a cognitive
dissonance theorist be most likely to applaud? a. All group members remain anonymous. b. All group members state, publicly, that they have an alcohol problem. c. Group members are encouraged to seek out a "sponsor," who will support them during rough times. d. Group members are welcomed back into the group even if they temporarily "fall off the wagon" (lapse into drinking).