A hormone that serves as an indicator of stress is…
a. neuropeptide Y.
b. testosterone.
c. cortisol.
d. prolactin.
Ans: C
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Support for the idea of the "sociostat" (social thermostat) is provided by the finding that rats
a. tend to prefer to remain on their own once a period of isolation ends. b. are less likely to approach other rats after a period of prolonged contact. c. aggress against other rats when a shared resource is scarce. d. always prefer the company of other rats to being alone.
When memories are stored, physical changes take place in brain activity and in the nerve cells. These physical changes are called
a. eidetic imagery. b. cross-stimulation. c. memory traces. d. axon diffusion.
The permissiveness with affection norm refers to the sexual norm characterized by the belief that premarital sex is
A) permissible for both men and women if it occurs in the context of a stable, committed, and loving relationship. B) permissible for males but not for females. C) not permissible under any circumstances, even though many adolescents are sexually active. D) an indicator that adolescents are developing an identity.
With young children, _____ percent of parent–child interactions involve the parent telling the child not to do something
A) 45% B) 55% C) 65% D) 75%