Abstract
Four groups of six pigeons each were given nondifferential training on multiple variable-interval variable-interval reinforcement schedules and then were switched to differential training involving a multiple schedule in which reinforcement density was reduced in one of the two components. The multiple schedules used in the four groups had mean interreinforcement intervals of 1 min and 1 min in the two components changed to 1 min, 5 min; 2.5 min, 2.5 min changed to 2.5 min, 5 min; 12 sec, 12 sec changed to 12 sec, 24 sec; and 12 sec, 12 sec changed to 12 sec, 60 sec. In subsequently administered wavelength generalization tests, some peak shifts were observed in each condition and occurred occasionally in the absence of behavioral contrast or rate reduction in the less-reinforced component. The best predictor of peak shift was a high proportion of total responses emitted during the more-reinforced component at the end of differential training.
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Selected References
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- Catania A. C., Reynolds G. S. A quantitative analysis of the responding maintained by interval schedules of reinforcement. J Exp Anal Behav. 1968 May;11(3 Suppl):327–383. doi: 10.1901/jeab.1968.11-s327. [DOI] [PMC free article] [PubMed] [Google Scholar]
- GUTTMAN N. Generalization gradients around stimuli associated with different reinforcement schedules. J Exp Psychol. 1959 Nov;58:335–340. doi: 10.1037/h0045679. [DOI] [PubMed] [Google Scholar]
- HANSON H. M. Effects of discrimination training on stimulus generalization. J Exp Psychol. 1959 Nov;58:321–334. doi: 10.1037/h0042606. [DOI] [PubMed] [Google Scholar]
- Lyons J., Klipec W. D. Color mixing with Kodak Wratten filters. J Exp Anal Behav. 1971 Mar;15(2):232–232. doi: 10.1901/jeab.1971.15-232. [DOI] [PMC free article] [PubMed] [Google Scholar]
- REYNOLDS G. S. Behavioral contrast. J Exp Anal Behav. 1961 Jan;4:57–71. doi: 10.1901/jeab.1961.4-57. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Terrace H. S. Discrimination learning, the peak shift, and behavioral contrast. J Exp Anal Behav. 1968 Nov;11(6):727–741. doi: 10.1901/jeab.1968.11-727. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Yarczower M., Dickson J. F., Gollub L. R. Some effects on generalization gradients of tandem schedules. J Exp Anal Behav. 1966 Nov;9(6):631–639. doi: 10.1901/jeab.1966.9-631. [DOI] [PMC free article] [PubMed] [Google Scholar]