At first, Freud argued that the cause of neurosis was childhood sexual abuse. What did his later theory emphasize?
a. Inadequate positive reinforcement
b. Imbalances among neurotransmitters in the brain
c. Childhood sexual fantasies
d. Failure to achieve self-actualization
c
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Drugs that alter the availability of norepinephrine and serotonin are not clinically effective in the treatment of depression for several weeks. Which of the following does this finding suggest?
A. These neurotransmitters are not involved in depression. B. It is overactivity of these neurotransmitters that underlies depression, not underactivity. C. The effectiveness of antidepressants is a placebo effect, as opposed to the result of a biochemical manipulation. D. Changes in neurotransmitter function, as opposed to neurotransmitter level, cause depression.
In a study on the effects of the amount of sleep on driving performance, researchers predict that those in the group that is allowed more sleep will exhibit better driving performance. The researchers are using _____
a. a two-tailed hypothesis b. a directional hypothesis c. a one-tailed hypothesis d. both directional and one-tailed hypotheses
Nick is short, heavy-set, and not very muscular. He has what body type?
A) Ectomorph B) Endomorph C) Mesomorph D) Polymorph
The part of the brainstem that controls heartbeat and breathing is called the
A) cerebellum B) medulla C) cortex D) thalamus