Abstract
A CER to a light CS was acquired by 22 rats and partially extinguished. Half the Ss were then given seven free shocks before another extinction session. The noncontingent shock group subsequently showed more suppression of lick rate to the CS than did the no-shock group. Experiment 2 determined that the CER in Experiment 1 was not due to pseudoconditioning and that the CS facilitated licking in Ss with completely suppressed baselines.
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This study represents part of Vernon L. Quinsey’s M.S. thesis. It was done under John J. B. Ayres’ direction and was partially supported by a grant to him from the Faculty Research Council of the University of Massachusetts.
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Quinsey, V.L., Ayres, J.J.B. Shock-induced facilitation of a partially extinguished CER. Psychon Sci 14, 213–214 (1969). https://doi.org/10.3758/BF03332798
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DOI: https://doi.org/10.3758/BF03332798