The dexamethasone suppression test (DST) involves injecting a person with a known as dexamethasone
a. coagulant
b. hormone
c. corticosteroid
d. beta blocker
c
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Crystallized intelligence refers to what?
a. The tendency for IQ scores to increase from one generation to the next b. The decrease of intellectual skills in old age or as a result of disease c. Practiced skills and knowledge about a particular field d. Reasoning and solving new problems
Aaron is diagnosed with autism spectrum disorder. His brain may show __________.
A. no "social brain" areas B. thinner cortical areas within the "social brain" areas C. greatly increased brain activity in the "social brain" areas D. thicker cortical areas within the "social brain" areas
The amino acid tryptophan is the precursor to which neurotransmitter?
a. dopamine b. endorphin c. serotonin d. nitric oxide
Grandpa is napping in his recliner, snoring loudly, when suddenly he stops snoring. You look to see if he woke up, but he is still asleep and appears to not be breathing. For a moment you wonder if he's dead, but suddenly he snorts and resumes snoring. Grandpa is displaying signs of
A. somnambulism. B. insomnia. C. narcolepsy. D. sleep apnea.