The internal clock for humans is accurate to within a few minutes for most people. However, it tends to run on a 24-hour clock, and therefore must be reset each day. The brain region that is responsible for resetting the internal clock is the _______
a. fornix
b. hippocampus
c. suprachiasmatic nucleus
d. reticular activating system
c
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What values are specified by the null hypothesis for a chi-square test?
a. Frequencies for a sample c. Proportions for a sample b. Frequencies for a population d. Proportions for a population
Teens begin to form an identity by asking “Who am I?” and “What kind of person do I want to be?” According to Erikson, failure to achieve a stable identity leads to ____
a. ?a sense of stagnation and a mid-life crisis b. ?role confusion and problems with subsequent stages c. ?the potential for feelings of despair and an unhappy dying process d. ?feelings of loneliness and isolation and an inability to create a relationship
If there were a drug that blocked the reuptake of norepinephrine, we would expect that the effect would most likely be
a. sleeplessness. c. drowsiness. b. too much sleep. d. psychomotor retardation.
Open head injuries are characterized by a. the existence of a coup and countercoup
b. the development of subdural hematomas. c. penetration of the skull. d. injury without penetration of the skull.