Abstract
Four experiments examined the effects of separate presentations of shock on conditioned suppression of instrumental responding evoked by a CS previously paired with shock. Experiment 1 showed that conditioned suppression of responding resulting from noise-shock pairings increased as a function of time after the initial noise-shock pairings. However, it also showed that this time-dependent increase in conditioned suppression of responding could be attenuated by presentations of light-shock pairings immediately prior to the test of the noise CS. Experiment 2 showed that this attenuation effect can be produced by presentations of either light-shock pairings or shock alone. Experiment 3 showed that the magnitude of this attenuation effect was directly related to the temporal proximity of the light-shock pairings to the test of the noise CS. Experiment 4 showed that the magnitude of this attenuation effect was inversely related to the intensity of separate shock presentations.
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Wagner, A. R.SOP: A model of automatic memory processing in animal behavior. Paper presented at the Binghamton Symposium on Memory Mechanisms in Animal Behavior, SUNY at Binghamton, June 10–12, 1980.
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Experiments 1, 3, and 4 were conducted while A. Randich was an NIMH postdoctoral fellow (Grant F2MH07691) at Yale University. Experiment 2 was conducted at the University of Iowa with the support of an NIH Biomedical Research Grant (RR-07035-15) to the first author.
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Randich, A., Rescorla, R.A. The effects of separate presentations of the US on conditioned suppression. Animal Learning & Behavior 9, 56–64 (1981). https://doi.org/10.3758/BF03212026
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DOI: https://doi.org/10.3758/BF03212026