Phenylketonuria is:
a. an enzyme disorder.
b. transmitted by a dominant gene.
c. a disorder that manifests itself in all children of carriers.
d. caused by alcohol consumption during pregnancy.
A
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Which of the following is NOT true regarding long-term potentiation (LTP)?
A. LTP is the result of repeated cell firing within a short period of time. B. LTP describes memory formation in animals, but not humans. C. LTP occurs at the synapses. D. LTP causes a release of proteins and the creation of new synapses.
Suppose that you meet an infant who is dressed in gender-neutral clothing, and the infant's father tells you that the infant is named Robert. The social constructionist perspective would argue that
a. you will construct a gender-neutral infant, neither extremely masculine or extremely feminine. b. you will adjust your thinking so that Robert's appearance and actions seem more masculine. c. you will perceive Robert to be an exception to the rule about boys having masculine characteristics. d. you will reinforce Robert for his "gender-inappropriate" behaviors.
Studies on lesbian identity indicate that
a. many lesbians experience a decrease in self-esteem once they recognize their lesbian identity. b. about half of lesbians who accept their identity show higher self-esteem, and about half show lower self-esteem, in comparison with heterosexual women. c. accepting a lesbian identity is psychologically beneficial only for those lesbians who maintain relationships with many heterosexuals. d. people who accept their lesbian identity typically have higher self-esteem than those who do not accept their identity.
One piece of evidence that suggests the survival value or adaptation theory of sleep may partially explain why we sleep is the finding that:
a. people show the same pattern of sleep after inactive days and active days b. people show more REM-sleep after an inactive day than after an active day c. large, grazing animals that can't easily hide sleep only a few hours a day d. people show less sleep disturbance in normal daylight cycles than in conditions of constant light