| Examination of the influence of contingency on changes in reinforcer value. | |
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MedLine Citation:
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PMID: 21941384 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This study examined how the amount of effort required to produce a reinforcer influenced subsequent preference for, and strength of, that reinforcer in 7 individuals with intellectual disabilities. Preference assessments identified four moderately preferred stimuli for each participant, and progressive-ratio (PR) analyses indexed reinforcer strength. Stimuli were then assigned to one of four conditions for 4 weeks: fixed-ratio (FR) 1 schedule, escalating FR schedule, yoked noncontingent (NCR) delivery, and restricted access. Preference assessments and PR schedules were then repeated to examine changes in selection percentages and PR break points. Selection percentages decreased for all NCR stimuli but increased for most of the restricted stimuli. There were no systematic changes in selection percentages for either of the contingent stimuli. Break points increased, on average, for all conditions, but the increase was highest for the restricted stimuli and lowest for the NCR stimuli. These results are discussed in relation to recent basic research addressing the influence of effort on stimulus value. |
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Authors:
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Iser G DeLeon; Meagan K Gregory; Michelle A Frank-Crawford; Melissa J Allman; Arthur E Wilke; Abbey B Carreau-Webster; Mandy M Triggs |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural |
Journal Detail:
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Title: Journal of applied behavior analysis Volume: 44 ISSN: 1938-3703 ISO Abbreviation: J Appl Behav Anal Publication Date: 2011 |
Date Detail:
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Created Date: 2011-09-23 Completed Date: 2012-01-27 Revised Date: 2012-03-01 |
Medline Journal Info:
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Nlm Unique ID: 0174763 Medline TA: J Appl Behav Anal Country: United States |
Other Details:
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Languages: eng Pagination: 543-58 Citation Subset: IM |
Affiliation:
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Neurobehavioral Unit, Kennedy Krieger Institute, Baltimore, Maryland 21205, USA. deleon@kennedykrieger.org |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Behavior Therapy / methods* Child Decision Making Developmental Disabilities / psychology, rehabilitation* Female Humans Male Paired-Associate Learning Reinforcement Schedule* Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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R01 HD049753/HD/NICHD NIH HHS; R01 HD049753-06/HD/NICHD NIH HHS; R03 MH072845/MH/NIMH NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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