PSYC 1F90 Study Guide - Quiz Guide: Detection Theory, Gustav Fechner, Subliminal Stimuli
18 Jan 2018
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Provide and recognize original examples of different jnds. Explain an absolute threshold in terms of a jnd. Define weber"s law. (p. 140: a just noticeable difference (jnd): the smallest difference in the amount of stimulation that a specific sense can detect, a close cousin of absolute thresholds. Define hit, miss, false alarm, and correct rejection. (pp. 140-141: signal detection theory: proposes that the detection of stimuli involves decision processes as well as sensory processes, which are both influenced by a variety of factors besides stimulus intensity. Imagine that you are monitoring a radar screen, looking for signs of possible enemy aircrafts. Your mission is to detect signals that represent approaching airplanes as quickly and accurately as possible. Be able to provide and recognize original examples of the use of subliminal perception for the purpose of advertising. Should its use be a significant concern? (pp.
