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Recovery from the overexpectation effect: Contrasting performance-focused and acquisition-focused models of retrospective revaluation |
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| Authors: | Aaron P Blaisdell James C Denniston Ralph R Miller |
| Institution: | 1. University of California, Los Angeles, California 2. Appalachian State University, Boone, North Carolina 3. Department of Psychology, SUNY, 13902-6000, Binghamton, NY |
| Abstract: | In four Pavlovian conditioned lick-suppression experiments, rats had two conditioned stimuli (CSs X and A) independently paired with footshock, followed by pairings of a compound of A and X with the footshock. On subsequent tests with CS X, less conditioned suppression was observed than in control subjects that lacked the compound AX→footshock trials. Thisoverexpectation effect was reversed through posttraining extinction of CS A, a result consistent with both performance- and acquisition-focused models of retrospective revaluation. However, only performance-focused models could account for how posttraining increases or decreases in the A-footshock temporal interval attenuate the overexpectation effect. |
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