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dc.contributor.supervisor Holborn, Stephen (Psychology) en
dc.contributor.author Slivinski, James G.
dc.date.accessioned 2009-03-30T17:59:43Z
dc.date.available 2009-03-30T17:59:43Z
dc.date.issued 2009-03-30T17:59:43Z
dc.identifier.uri http://hdl.handle.net/1993/3136
dc.description.abstract The essential tenet of the behavioral momentum model (BMM) is that relative response rate decreases less in the face of disruption when maintained by a higher reinforcer density. Empirical support exists based on both response-dependent and response-independent reinforcement. In the present study the BMM was tested with college students in 4 multi-element experiments, each using 2 reinforcement schedules and a disrupter. Participants performed a categorical sort (by orientation) of triangles on a computer monitor. Sorting response rates were disrupted by a concurrent task, pressing the keyboard “T” key whenever 2 displayed changing numbers were equal. Initial training established fast (under VR 4) and slow (under DRL 5-s) sorting rates, and provided practice with the disrupting task. In Experiment 1 DRL 5-s provided higher reinforcer density, while in Experiment 2 VR 4 did. In Experiment 3 the higher total reinforcer density was achieved by adding VT 6-s to DRL 5-s while in Experiment 4 it was achieved by adding VT 12-s to VR 4. In all 4 experiments, sorting rate decreased with introduction of the disrupter. In Experiments 1 and 3, relative sorting rate decreased less under DRL based schedule (greater reinforcer density), supporting the BMM. However, in Experiments 2 and 4, relative sorting also decreased less under DRL (lower reinforcer density), contrary to the BMM prediction. Taken together, these data show greater relative resistance to change under DRL (versus VR), independent of reinforcer density. Thus, contrary to the BMM, the nature of the reinforcement schedule seemed to be the principal factor determining behavioral momentum. en
dc.format.extent 1523164 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.subject behavioral momentum en
dc.subject dynamics en
dc.subject resistance to change en
dc.subject response rate en
dc.subject disruption en
dc.subject reinforcement schedule en
dc.subject rules en
dc.subject schedule effect en
dc.subject reinforcer density en
dc.subject pavlovian contingency en
dc.subject relative rate en
dc.subject resistance to disruption en
dc.title Effects of reinforcer density versus reinforcement schedule on human behavioral momentum en
dc.degree.discipline Psychology en
dc.contributor.examiningcommittee Blunden, Peter (Physics) Pear, Joseph (Psychology) Yu, C. T. (Psychology) Lattal, Kennon (Psychology, West Virginia University) en
dc.degree.level Doctor of Philosophy (Ph.D.) en
dc.description.note May 2009 en


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