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dc.contributor.author Horsley, Rachel R.
dc.contributor.author Osborne, Matthew
dc.contributor.author Norman, Christine
dc.contributor.author Wells, Timothy
dc.date.accessioned 2013-07-13T04:05:36Z
dc.date.available 2013-07-13T04:05:36Z
dc.date.issued 2012-04-15
dc.identifier.citation Horsley , R R , Osborne , M , Norman , C & Wells , T 2012 , ' High-frequency gamblers show increased resistance to extinction following partial reinforcement ' Behavioural Brain Research , vol 229 , no. 2 , pp. 438-442 . DOI: 10.1016/j.bbr.2012.01.024 en
dc.identifier.issn 0166-4328
dc.identifier.other PURE: 579539
dc.identifier.other PURE UUID: 9a2cf2de-8798-4cd4-9dc5-07f7cfe41e6e
dc.identifier.other WOS: 000302050300019
dc.identifier.other PubMed: 22274620
dc.identifier.other Scopus: 84857783725
dc.identifier.other handle.net: 2160/8953
dc.identifier.uri http://hdl.handle.net/2160/8953
dc.description Copyright © 2012 Elsevier B.V. All rights reserved. en
dc.description.abstract Behaviours that have been rewarded intermittently persist for longer during periods of non-reward than behaviours that have been rewarded continuously. This classic phenomenon is known as the partial reinforcement extinction effect. For decades it has been generally understood that this phenomenon is fundamental to the persistence of gambling in the absence of winning. One obvious, yet untested hypothesis arising from this is that persistent (here, high-frequency) gamblers might be more sensitive to partial reinforcement contingencies. Therefore, our aim was to test the hypothesis that compared to low-frequency gamblers, high-frequency gamblers would show greater resistance to extinction following partial reinforcement in a computer based experiment. Participants were 19 high-frequency gamblers and 21 low-frequency gamblers, all healthy non-smokers aged between 18 and 52. Following partial or continuous reinforcement, persistence of responding in extinction was measured as the number of times a target response was made. After partial reinforcement, high-frequency gamblers made the target response a greater number of times in extinction (compared to low-frequency gamblers). Moreover, the partial reinforcement extinction effect was larger in high-frequency gamblers than in low-frequency gamblers. It remains to be seen whether increased sensitivity to partial reinforcement is a cause or effect of persistent gambling. Nevertheless, the present study represents an important first step in investigating the role of simple partial reinforcement contingencies in determining resistance to extinction in gamblers, the importance of which, whilst hitherto recognised, has never been demonstrated experimentally. en
dc.format.extent 5 en
dc.language.iso eng
dc.relation.ispartof Behavioural Brain Research en
dc.rights en
dc.subject Adolescent en
dc.subject Adult en
dc.subject Extinction, Psychological en
dc.subject Female en
dc.subject Gambling en
dc.subject Humans en
dc.subject Male en
dc.subject Middle Aged en
dc.subject Reinforcement (Psychology) en
dc.subject Reinforcement Schedule en
dc.subject CAUDATE-PUTAMEN en
dc.subject ADDICTIVE BEHAVIORS en
dc.subject D-AMPHETAMINE en
dc.subject LATENT INHIBITION en
dc.subject PREE en
dc.subject SYSTEMIC AMPHETAMINE en
dc.subject EFFECT PREE en
dc.subject Conditioning en
dc.subject Partial reinforcement en
dc.subject Dopamine en
dc.subject RECEPTOR GENE en
dc.subject NUCLEUS-ACCUMBENS en
dc.subject CAGE QUESTIONNAIRE en
dc.subject ELECTROLYTIC LESIONS en
dc.title High-frequency gamblers show increased resistance to extinction following partial reinforcement en
dc.type /dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article en
dc.identifier.doi https://doi.org/10.1016/j.bbr.2012.01.024
dc.contributor.institution Department of Psychology en
dc.description.status Peer reviewed en


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