Abstract
Resistance to extinction of the CER in rats was determined at five shock-reinforcement values (100, 66, 26, 20, and 13%). The percentage of times the US followed the CS during conditioning was approached gradually, starting at 100%, with subsequent reductions to a final schedule that differed for each of the partial groups. The data revealed an inverse-PRE, with greatest resistance to extinction of suppression at 100% shock-reinforcement. An interpretation, relating differences in shock density to the maintenance of generalized suppression, was suggested.
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This research is a portion of a dissertation submitted in partial fulfillment for the PhD degree at Southern Illinois University, and was conducted during the author’s tenure as USPHS NIMH Predoctoral Fellow No. 1-F1-MH-29,059-01(PS).
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Scheuer, C. Resistance to extinction of the CER as a function of shock-reinforcement training schedules. Psychon Sci 17, 181–182 (1969). https://doi.org/10.3758/BF03336510
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DOI: https://doi.org/10.3758/BF03336510