In one study of 16 couples, the wives had to lie in an MRI machine, periodically receiving a mild but stressful electric shock on their ankles. During the procedure, some women received a touch on the hand from a stranger;
others held hands with their husbands. What general principle can be drawn from the results of this study?
a. Touch can be comforting, but it does not actually reduce stress and anxiety activity in the brain.
b. Any human touch reduces pain and negative emotions equally.
C
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When male rats are under stress, they react with the fight-or-flight response. Female rats, on the other hand, may react with ____
a. the might-or-right syndrome b. the tend-and-befriend response c. flight only d. a tendency to hide
Which measure of central tendency represents the "middle score" in a group of scores?
a. mean b. median c. mode d. range
Angel just went to her car for her lunch-break cigarette. Afterwards, she was in a much better mood, likely due to the effects of nicotine on ______.
A. nicotinic acetylcholine receptors B. nicotinic dopamine receptors C. serotonin receptors D. opiate receptors
The foreskin can cover part or all of the glans and retracts back over the frenulum when the penis is erect
Indicate whether the statement is true or false