Abstract
In four studies, with rats as Ss. acquisition and. where appropriate, extinction trials were presented against a baseline of ongoing licking. At shock intensities of 0.1. 0.5. 1.0, or 2.0 mA, acquisition performance was a function of number of CS-US pairings: spacing of trials (one or two per day) did not affect acquisition performance. Resistance to extinction could be predicted from terminal acquisition performance and reached a maximum after three CS-US pairings.
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This research was supported by Grant APA-223 from the National Research Council of Canada.
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James, J.P., Shangi, L., Pangman, C. et al. The role of number and spacing of CS-US pairings in conditioned suppression. Animal Learning & Behavior 1, 140–144 (1973). https://doi.org/10.3758/BF03214581
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DOI: https://doi.org/10.3758/BF03214581