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A Human-Operant Investigation of Preceding- and Following-Schedule Behavioral Contrast

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Abstract

Behavioral contrast occurs when a change in the rate of reinforcement in one context results in a change in behavior in the opposite direction in another context. Research findings with nonhumans regarding the symmetry of positive and negative contrast have been mixed, especially regarding the relative influence of preceding and following schedules of reinforcement. Research has also been mixed regarding the extent to which systematic within-session contrast is demonstrated. Despite applied implications of contrast, the vast majority of research has been conducted with nonhumans. The purpose of the current study was to investigate the differential influence of preceding- and following-schedules of reinforcement on positive and negative behavioral contrast, as well as within-session contrast, with adult humans with intellectual and/or developmental disabilities in a 3-component human-operant arrangement. Positive contrast was found in 5 of 6 cases, whereas negative contrast was found in only 2 of 6. The effect of the following schedule was larger with positive contrast, but the effect of the preceding schedule was larger with negative contrast. There were no systematic within-session effects characteristic of behavioral contrast.

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Acknowledgments

The authors would like to thank Cynthia Pietras for her comments on an earlier version of this manuscript. The authors would also like to thank Kerry Jordan and Gregory Madden for their helpful suggestions during the course of this project. Finally, the authors wish to thank Casey Clay, Chase Callard, and Rickie Ivory for assistance in data collection.

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Correspondence to Megan A. Boyle.

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All authors declare no conflicts of interest with this submission.

Research with Human Subjects

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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Informed consent was obtained from all individual participants included in the study.

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Boyle, M.A., Samaha, A.L., Slocum, T.A. et al. A Human-Operant Investigation of Preceding- and Following-Schedule Behavioral Contrast. Psychol Rec 66, 381–394 (2016). https://doi.org/10.1007/s40732-016-0179-y

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  • DOI: https://doi.org/10.1007/s40732-016-0179-y

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