Which of these is a situation that involves olfaction?
a) comparing the smell of two colognes
b) listening to your favorite recording artist
c) thoroughly enjoying a view of the clouds
d) trying to maintain your balance on an amusement park ride
ANS: a
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During the 1950s, one U.S. government agency that conducted research with LSD was the
A. Central Intelligence Agency. B. Centers for Disease Control. C. Department of Education. D. Department of Agriculture.
At low levels, alcohol's effect on the brain is __________; at higher levels, alcohol's effect is __________.
A. to inhibit glutamate (an excitatory neurotransmitter); to release opiumlike endorphins B. too minimal to have an impact; massive and excitatory C. depressive; excitatory D. to activate the brain's "pleasure centers"; to depress brain functioning