Simultaneous and successive contrast with delay of reward |
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| Authors: | N J Mackintosh Janet Lord |
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| Institution: | 1. Dalhousie University, Halifax, Nova Scotia, Canada
2. Laboratory of Experimental Psychology, University of Sussex, BN1 9QY, Brighton, England
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| Abstract: | In Experiment I, rats showed no evidence of a successive negative contrast effect (NCE) when shifted from immediate reward to a 15-sec delay of reward. Experiment II provided a direct comparison of NCE in both successive and simultaneous paradigms. As in Experiment I, there was no evidence of a successive NCE, but a reliable simultaneous NCE was observed. These results add support for the view that simultaneous and successive NCEs are not due to a single, common process. |
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