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Article: Age-related differences in neural activities during risk taking as revealed by functional MRI

TitleAge-related differences in neural activities during risk taking as revealed by functional MRI
Authors
KeywordsAgeing
Insula
Neuroimaging
Orbitofrontal cortex
Prefrontal cortex
Risk taking
Issue Date2008
PublisherOxford University Press. The Journal's web site is located at http://scan.oxfordjournals.org
Citation
Social Cognitive And Affective Neuroscience, 2008, v. 3 n. 1, p. 7-15 How to Cite?
AbstractPrevious research has clearly documented that risky decision making is different in young and older adults. Yet, there has been a relative dearth of research that seeks to understand such age-related changes in the neural activities associated with risk taking. To address this research issue, 21 men (12 young men, mean age 29.9±6.2 years and 9 older men, mean age 65.2±4.2 years) performed a risky-gains task while their brain activities were monitored by an fMRI scanner. The older adults, relative to their younger peers, presented with contralateral prefrontal activity, particularly at the orbitofrontal cortex. Furthermore, stronger activation of the right insula was observed for the older-aged participants compared to the younger-aged adults. The findings of this study are consistent with the a priori speculations established in accordance with the HAROLD model as well as previous findings. Findings of this study suggest that when making risky decisions, there may be possible neuropsychological mechanisms underlying the change in impulsive and risk-taking behaviors during the course of natural ageing. © 2007 The Author(s).
Persistent Identifierhttp://hdl.handle.net/10722/89456
ISSN
2015 Impact Factor: 5.101
2015 SCImago Journal Rankings: 2.635
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLee, TMCen_HK
dc.contributor.authorLeung, AWSen_HK
dc.contributor.authorFox, PTen_HK
dc.contributor.authorGao, JHen_HK
dc.contributor.authorChan, CCHen_HK
dc.date.accessioned2010-09-06T09:57:15Z-
dc.date.available2010-09-06T09:57:15Z-
dc.date.issued2008en_HK
dc.identifier.citationSocial Cognitive And Affective Neuroscience, 2008, v. 3 n. 1, p. 7-15en_HK
dc.identifier.issn1749-5016en_HK
dc.identifier.urihttp://hdl.handle.net/10722/89456-
dc.description.abstractPrevious research has clearly documented that risky decision making is different in young and older adults. Yet, there has been a relative dearth of research that seeks to understand such age-related changes in the neural activities associated with risk taking. To address this research issue, 21 men (12 young men, mean age 29.9±6.2 years and 9 older men, mean age 65.2±4.2 years) performed a risky-gains task while their brain activities were monitored by an fMRI scanner. The older adults, relative to their younger peers, presented with contralateral prefrontal activity, particularly at the orbitofrontal cortex. Furthermore, stronger activation of the right insula was observed for the older-aged participants compared to the younger-aged adults. The findings of this study are consistent with the a priori speculations established in accordance with the HAROLD model as well as previous findings. Findings of this study suggest that when making risky decisions, there may be possible neuropsychological mechanisms underlying the change in impulsive and risk-taking behaviors during the course of natural ageing. © 2007 The Author(s).en_HK
dc.languageengen_HK
dc.publisherOxford University Press. The Journal's web site is located at http://scan.oxfordjournals.orgen_HK
dc.relation.ispartofSocial Cognitive and Affective Neuroscienceen_HK
dc.rightsSocial Cognitive and Affective Neuroscience. Copyright © Oxford University Press.en_HK
dc.subjectAgeingen_HK
dc.subjectInsulaen_HK
dc.subjectNeuroimagingen_HK
dc.subjectOrbitofrontal cortexen_HK
dc.subjectPrefrontal cortexen_HK
dc.subjectRisk takingen_HK
dc.titleAge-related differences in neural activities during risk taking as revealed by functional MRIen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1749-5016&volume=3&spage=7&epage=15&date=2008&atitle=Age-related+differences+in+neural+activities+during+risk+taking+as+revealed+by+functional+MRI.en_HK
dc.identifier.emailLee, TMC:tmclee@hku.hken_HK
dc.identifier.authorityLee, TMC=rp00564en_HK
dc.description.naturelink_to_OA_fulltext-
dc.identifier.doi10.1093/scan/nsm033en_HK
dc.identifier.pmid19015090-
dc.identifier.scopuseid_2-s2.0-44849136530en_HK
dc.identifier.hkuros146366en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-44849136530&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume3en_HK
dc.identifier.issue1en_HK
dc.identifier.spage7en_HK
dc.identifier.epage15en_HK
dc.identifier.isiWOS:000256174000002-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridLee, TMC=7501437381en_HK
dc.identifier.scopusauthoridLeung, AWS=36935465800en_HK
dc.identifier.scopusauthoridFox, PT=7402680249en_HK
dc.identifier.scopusauthoridGao, JH=7404475674en_HK
dc.identifier.scopusauthoridChan, CCH=16244174500en_HK

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