Describe the role of dopamine in reinforcing brain stimulation
What will be an ideal response?
Answer: The ventral tegmental area (VTA) projects to the nucleus accumbens (NAcc) via the mesolimbic dopamine pathway. Increases of dopamine within the NAcc are reinforcing. Natural reinforcers (food for a hungry rat) will elicit this increase in DA, as will drugs of abuse such as amphetamine that are also reinforcing (i.e., rats will make a response that delivers the drug into their blood stream or directly into the NAcc).
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Intrusion errors occur when _______
A) people study a list of highly related words and then recall completely unrelated words. B) people study a list of highly unrelated words, but can only recall those that are related to recalled words. C) people study a list of highly related words and then recall other related words that were not part of the list. D) people study a list of highly unrelated words, and then recall words that rhyme with those on the list.
Jean Twenge asked undergraduates to complete a
personality measure and gave them bogus feedback on their test results. Students who received feedback that they would be isolated toward the end of their lives A) were significantly less likely than other students to engage in unhealthy behaviors. B) were significantly more likely than other students to engage in healthy behaviors. C) were significantly more likely than other students to engage in unhealthy behaviors. D) were no more likely than other students to engage in unhealthy behaviors.