Nicotine creates pleasurable feelings by causing the release of ______
a. endorphins c. catecholamines
b. enkaphalins d. cortisol
A
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You stare at narrow black-and-white lines for a minute and then look at wider lines. The second set of lines appears even wider than usual. What did staring at the first set of lines cause?
a. Retinal disparity b. Fatigue of feature detectors c. A shift in the signal-detection function d. Motion parallax
Which term refers to the rules for combining words into meaningful communications?
A) Proxemics B) Grammar C) Phonology D) Semantics
The physical unit that measures sound amplitude is known as the ______.
A. decibel B. hertz C. gelb D. ampere
In a study on alcohol and driving ability, half the subjects are given alcohol before driving an obstacle course, while the remaining subjects drive the course while remaining sober. In this study, those subjects who drive the course while remaining sober comprise the __________ group.
A. control B. placebo C. observation D. experimental