A signal detection theory analysis of an unconscious perception effect |
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Authors: | Steven J. Haase John Theios Rick Jenison |
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Affiliation: | 1. Gordon College, Barnesville, Georgia 2. Department of Rehabilitation Medicine, University of Wisconsin, 1300 University Ave., 53706, Madison, WI
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Abstract: | The independent observation model (Macmillan & Creelman, 1991)is fitted to detection-identification data collected under conditions of heavy masking. The model accurately predicts a quantitative relationship between stimulus detection and stimulus identification over a wide range of detection performance. This model can also be used to offer a signal detection interpretation of the common finding of above-chance identification following a missed signal. While our finding is not a new one, the stimuli used in this experiment (redundant three-letter strings) differ slightly from those used in traditional signal detection work. Also, the stimuli were presented very briefly and heavily masked, conditions typical in the study of unconscious perception effects. |
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