Abstract
In two differential conditioning experiments, groups of 10 rats each differed with respect to average reward and schedule of reward received in S+. Nonreward (N) occurred on all S− trials. In both experiments, extinction of responding to S− (resistance to discrimination) was extensively regulated by reward sequence and was largely independent of average reward. In Experiment 1, resistance to discrimination was a function of transitions from N to rewarded (R) trials (N-R transitions). In Experiment 2, resistance to discrimination was increased by large reward on the R trial of N-R transitions and decreased by large reward on the R trial of R-N transitions. These schedule effects on resistance to discrimination parallel the effects of comparable schedules on resistance to extinction following partial reinforcement. The results are discussed in terms of sequential theory, reinforcement level theory, and their implications for various schedule manipulations that have previously shown S− behavior to be inversely related to average reward in S+.
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References
Capaldi, E. J. Partial reinforcement: An hypothesis of sequential effects.Psychological Review, 1966,73, 459–477.
Capaldi, E. J. Reinforcement level: An expectancy-associative approach to relative reinforcement and nonreinforcement effects. In G. McCain & J. Bearwalt (Eds.),The Arlington Symposium on Learning. Stamford, Conn: Greylock, in press.
Capaldi, E. J., Berg, R. F., &Morris, M. D. Stimulus control of responding in the early trials of differential conditioning.Learning and Motivation, 1975,6, 217–229.
Haggbloom, S. J. Intertriai interval effects on internal stimulus control of behavior in brightness differential conditioning.Learning and Motivation, 1978,9, 347–358.
Haggbloom, S. J. The differential reinforcement of reward- produced and response-produced stimuli.Learning and Motivation, 1979,10, 364–381.
Haggbloom, S. J. Resistance to discrimination and subsequent resistance to extinction as a function of the sequence of partial S+ reward in differential conditioning.Animal Learning & Behavior, 1980,8, 441–446.
Haggbloom, S. J., & Tillman, D. J. Sequential effects on discrimination reversal.Learning and Motivation, in press.
Leonard, D. W. Amount and sequence of reward in partial and continuous reinforcement.Journal of Comparative and Physiological Psychology, 1969,67, 204–211. (a)
Leonard, D. W. Varied reward sequence and resistance to extinction in the straight alley.Psychonomic Science, 1969,16, 129–130. (b)
MacKinnon, J. R. Interactive effects of the two rewards in a differential magnitude of reward discrimination.Journal of Experimental Psychology, 1967,75, 329–338.
Matsumoto, R. T. Relative reward effects in differential conditioning.Journal of Comparative and Physiological Psychology, 1969,68, 589–592.
McHose, J. H. Relative reinforcement effects: S1, /S2 and S1 /S1, paradigms in instrumental conditioning.Psychological Review, 1970,77, 135–146.
McHose, J. H., &Blackwell, D. R. Performance in differential instrumental conditioning as a function of the pattern of partial S+ reward.Animal Learning & Behavior, 1975,3, 63–66.
McHose, J. H., &Howard, G. S. Performance in differential instrumental conditioning with infrequent S+ presentations.Bulletin of the Psychonomic Society, 1973,1, 132–134.
McHose, J. H., Maxwell, F. R., &McHewitt, E. R. Effects of nonreward in S+ and S- on performance in differential conditioning.Journal of Experimental Psychology, 1971,88, 282–284.
McHose, J. H., McHewitt, E. R., &Peters, D. P. Average reward as a determinant of S- performance in differential conditioning.Psychonomic Science, 1972,29, 129–132.
McHose, J. H., &Peters, D. P. Differential instrumental conditioning as a function of percentage and amount of positive stimulus reward.Journal of Experimental Psychology, 1973,100, 413–415.
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These experiments were supported in part by a grant from Arkansas State University and by National Institute of Mental Health Grant 1 ROC MH33349-01 to the author.
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Haggbloom, S.J. Reward sequence and reinforcement level as determinants of S− behavior in differential conditioning. Animal Learning & Behavior 8, 424–428 (1980). https://doi.org/10.3758/BF03199628
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DOI: https://doi.org/10.3758/BF03199628