Drugs that affect behavior exert their effects mainly by what means?

a. They increase or decrease the synthesis of hormones

b. They increase or decrease the velocity of action potentials.
c. They increase or decrease activity at certain synapses.
d. They increase or decrease blood flow to the brain.


c

Psychology

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What was the original meaning of the term schizophrenia?

a. Alternation between depression and mania b. Alternation between two or more personalities c. A tendency toward uncontrollable violent behavior d. A separation between the intellect and the emotions

Psychology

Current estimates suggest we have around ____ neurons in our brain

a. ?800 million b. ?6 billion c. ?46 billion d. ?86 billion

Psychology

The type of knowledge that allows a specialist to work efficiently on a problem without the elaborate preparation that a new problem would require of a beginner is ______

a. intuition c. insight b. expertise d. problem set

Psychology

Raul experiences periods during the night when he stops breathing, causing carbon dioxide levels in his blood to rise. After the levels get too high, he wakes up, gasping for breath. Raul is experiencing:

A. insomnia. B. sleep apnea. C. narcolepsy. D. night terrors.

Psychology