In a myelinated axon, action potentials are produced
a. only at the axon hillock
b. only at the axon hillock and at the nodes of Ranvier.
c. along the entire length of the axon membrane.
d. only under segments of myelin.
b
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Why might American girls show more advanced verbal ability than American boys?
a. Parents talk less to infant daughters than they do to infant sons. b. Girls rely more on verbal skills in interacting with others. c. Skills, such as reading, are stereotyped as masculine in the United States. d. Boys in the United States do not begin formal reading instruction until at least one year after girls..
Which method of measuring behavior is most effective at directly studying brain activity?
a. Physiological measures b. Self-reports c. Naturalistic observation d. Sampling behavior with tasks
____ is defined as a maladaptive pattern of using a substance that leads to significant problems because of continued usage
a. Psychological addiction c. Chemical addiction b. Substance dependency d. Substance abuse
Concerning stability over time,
a. IQ scores become increasingly unstable as one matures. b. IQ is strongly stable from preschool age and later. c. IQ is more stable for girls than for boys. d. IQ is more stable for some individuals than for others.