Abstract
Seventy-two rats were run in a suppression paradigm in one of 12 combinations of delay after fear conditioning (0 vs. 231/2 h), mode of fear conditioning (forward, backward, and CS-only control), and similarity between fear conditioning and testing chambers (same vs. different). The forward fear conditioning groups showed incubation (greater suppression after the delay) under both same and different conditions. This finding does not support a stimulus generalization interpretation of the incubation effect.
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Koranda, L.G., Freedman, P.E. Effects of generalization of fear on incubation in a response suppression paradigm. Bull. Psychon. Soc. 8, 97–100 (1976). https://doi.org/10.3758/BF03335092
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DOI: https://doi.org/10.3758/BF03335092