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Delay discounting in mild cognitive impairment

2017-05Journal article Restricted access
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dc.contributor.authorCoelho, Sara
dc.contributor.authorGuerreiro, Manuela
dc.contributor.authorChester, Catarina
dc.contributor.authorSilva, Dina
dc.contributor.authorMaroco, Joao
dc.contributor.authorPaglieri, Fabio
dc.contributor.authorde Mendonca, Alexandre
dc.date.accessioned2019-11-20T15:07:40Z
dc.date.available2019-11-20T15:07:40Z
dc.date.issued2017-05
dc.description.abstractIntroduction: Patients with mild cognitive impairment (MCI) may make suboptimal decisions particularly in complex situations, and this could be due to temporal discounting, the tendency to prefer immediate rewards over delayed but larger rewards. The present study proposes to evaluate intertemporal preferences in MCI patients as compared to healthy controls. Method: Fifty-five patients with MCI and 57 healthy controls underwent neuropsychological evaluation and a delay discounting questionnaire, which evaluates three parameters: hyperbolic discounting (k), the percentage of choices for delayed and later rewards (%LL), and response consistency (Acc). Results: No significant differences were found in the delay discounting questionnaire between MCI patients and controls for the three reward sizes considered, small, medium, and large, using both k and %LL parameters. There were also no differences in the response consistency, Acc, between the two groups. Conclusions: Patients with MCI perform similarly to healthy controls in a delay discounting task. Memory deficits do not notably affect intertemporal preferences.
dc.description.sponsorshipFundacao para a Ciencia e a Tecnologia [JPND-HC/0003/2012]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1080/13803395.2016.1226269
dc.identifier.issn1380-3395
dc.identifier.issn1744-411X
dc.identifier.urihttp://hdl.handle.net/10400.1/13154
dc.language.isoeng
dc.peerreviewedyes
dc.publisherTaylor & Francis Inc
dc.subjectDecision-making
dc.subjectIntertemporal choice
dc.subjectAlzheimers-disease
dc.subjectOlder persons
dc.subjectLife-span
dc.subjectRewards
dc.subjectDementia
dc.subjectAge
dc.subjectPerspective
dc.subjectPsychology
dc.titleDelay discounting in mild cognitive impairment
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/JPND-HC%2F0003%2F2012/PT
oaire.citation.endPage346
oaire.citation.issue4
oaire.citation.startPage336
oaire.citation.titleJournal of Clinical and Experimental Neuropsychology
oaire.citation.volume39
oaire.fundingStream3599-PPCDT
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isProjectOfPublicationee924c55-b8b0-4dbc-a16f-a373a13c0eec
relation.isProjectOfPublication.latestForDiscoveryee924c55-b8b0-4dbc-a16f-a373a13c0eec

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