Abstract
The key-pecking behavior of two pigeons was maintained on a 2-min fixed-interval schedule of reinforcement. The interval was divided into four 30-sec periods, and an Estes-Skinner conditioned-suppression procedure was superimposed on the second, third, and fourth 30-sec periods of the fixed interval. Suppression was obtained during the second 30-sec interval, but a complete loss of suppression was obtained when the CS was presented during the last 30-sec period prior to a reinforcement. The results serve to complete the generalization that the severity of conditioned suppression on fixed schedules of reinforcement is determined in part by the temporal relationship between the CS onset and the presentation of a reinforcement.
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This study was supported by Public Health Service Grant MH 12028-01.
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Lyon, D.O., Millar, R.D. Conditioned suppression on a fixed interval schedule of reinforcement. Psychon Sci 17, 31–32 (1969). https://doi.org/10.3758/BF03329152
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DOI: https://doi.org/10.3758/BF03329152