Some drugs that combat depression work by ____________

a) increasing the amount of serotonin in the brain
b) blocking dopamine receptors in the brain
c) inhibiting the function of the medulla and the pons
d) increasing the amount of acetylcholine in the brain

ANS: a

Psychology

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Fraternal twins are also known as ______

dizygotic twins monozygotic twins conjoined twins identical twins

Psychology

In Jerome Kagan's longitudinal research study on the development of shyness and sociability,

A) the majority of babies were overwhelmed by novelty. B) most children's dispositions became less extreme over time. C) most children retained their temperamental style as they grew older. D) only about 10 percent of 4-month-old babies seemed delighted with new experiences.

Psychology