Morphine and other opiate drugs decrease sensitivity to pain by ____.
A. depleting substance P from parts of the nervous system
B. mimicking the effects of endorphins at the synapses
C. preventing sodium from crossing the membrane
D. altering blood flow to various parts of the nervous system
Answer: B
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Which of the following methods involves studying development over time?
a. a longitudinal study c. a cross-sectional study b. an experiment d. a correlational study
Luther was born yesterday and spends part of his time in the hospital nursery. Every time another baby starts to cry, he cries also. His echoing the emotional state of other people is known as
A) positive emotion bias B) gender identity C) cry contagion D) self-regulation
Social referencing shows that infants rely on their parents' emotions to regulate their own behavior
Indicate whether the statement is true or false
In the context of person-situation interaction, the equation B = f(P × S):
A. indicates that behavior is primarily the result of personality and secondarily the result of situations. B. shows that the appearance of a trait is related to an interaction between the phenotypes and the stereotypes. C. is a way to determine heritability estimates for behavior of personalities in different situations. D. suggests that behavior is a function of the interaction between personality traits and situational forces.