Abstract
Pigeons were trained on a form discrimination that alternated across trials with an already-learned color discrimination, which was associated with different probabilities of reinforcement for different groups. The rate of acquisition of the form discrimination varied inversely with the rate of reinforcement for the color discrimination, thus demonstrating a “contrast effect” in simultaneous discrimination learning.
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Baum, W. M., &Rachlin, H. Choice as time allocation.Journal of the Experimental Analysis of Behavior, 1969,12, 861–874.
Biederman, G. Simultaneous discrimination: Parameters of reinforcement and ITI.Psychonomic Science, 1967,8, 215–216.
Catania, A. C. Concurrent performances: A baseline for the study of reinforcement magnitude.Journal of the Experimental Analysis of Behavior, 1963,6, 299–300.
D’Amato, M. R..Etkin, M..Fazzaro, J. Cue-producing behavior in the capuchin monkey during reversal, extinction, acquisition, and overlearning.Journal of the Experimental Analysis of Behavior, 1968,11, 425–433.
Eisenberger, R., Frank, M.. &Park, D. Incentive contrast of choice behavior.Journal of Experimental Psychology: Animal Behavior Processes, 1975,1, 346–354.
Herrnstein, R. J. On the law of effect.Journal of the Experimental Analysis Of Behavior, 1970,13, 243–206.
Kamin, L. J. Predictability. surprise, attention and conditioning. In R. Church & B. Campbell (Eds.),Punishment and aversive behavior. New York Appleton-Century-Crofts, 1969. Pp. 279–296.
Lawson, R. Brightness discrimination performance and secondary reward strength as a function of primary reward amount.Journal of Comparative and Physiological Psychology, 1957,50, 35–39.
Mackintosh, N. J. The psychology of animal learning. New York: Academic Press, 1974.
Schrier, A. M. Comparison of two methods of investigating the effects of amount of reward on performance.Journal of Comparative and Physiological Psychology, 1958,51, 725–731.
Williams, B. A. The blocking of reinforcement control.Journal of the Experimental Analysis of Behavior, 1975,24, 215–225.
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This research was supported by NSF Research Grant GB-42887. Portions of this research were reported at the meeting of the Psychonomic Society, November 1975.
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Williams, B.A. Contrast effects in simultaneous discrimination learning. Animal Learning & Behavior 5, 47–50 (1977). https://doi.org/10.3758/BF03209130
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DOI: https://doi.org/10.3758/BF03209130