Opioid agonists acting in the nucleus accumbens increase dopamine levels in the nucleus accumbens by:
a. inhibiting GABA neurons that terminate on dopamine neurons in the ventral tegmental area.
b. binding to opioid receptors on dopamine axon terminals.
c. by inhibiting glutamate neurons which no longer inhibit GABA neurons acting on dopamine neurons in the nucleus accumbens.
d. inhibiting opioid neurons which terminate in the ventral tegmental area.
Ans: A
You might also like to view...
Which of the following is a valid concern with regard to treating boys and girls differently during their childhoods?
a. Adults stressing independence may be less nurturing of girls than of boys, since they feel that girls naturally have better problem-solving abilities than boys b. Adults may grow to love children more or less based on their gender-consistent behaviors. c. Adults may grow to have different expectations about the abilities of boys and girls, and thus treat them in ways that either encourage or discourage certain skills. d. Adults may force more encouragement and instruction in math and science on girls, since they believe that girls are naturally less capable in those subjects.
Newborn reflexes make __________ possible in the young infant
A) operant conditioning B) classical conditioning C) a novelty preference D) habituation