Differential conditioned suppression in the Konorski-Lawicka paradigm |
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| Authors: | John Memmott Douglas Reberg |
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| Institution: | 1. Department of Psychology, University of Western Ontario, N6A 5C2, London, Ontario, Canada
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| Abstract: | In conditioned suppression discriminations, the Konorski-Lawicka paradigm involves A+ trials, where conditioned stimulus A is followed by shock, and sh → A? trials, where A is preceded by shock Rats easily mastered this A+/sh → A? discrimination, as indicated by suppression of food-reinforced barpressing on A+ trials and acceleration of barpressing on sh → A? trials. A history of A+ conditioning resulted in nearly perfect discrimination performance on the very first day of A+/sh → A ? training, but a history of sh→ A? conditioning retarded development of the discrimination. The basis for the development of the discrimination was discussed in terms of an inferred stimulus (sh′) arising from the aftereffects of shock. |
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