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Article: An event-related fMRI study on risk taking by healthy individuals of high or low impulsiveness

TitleAn event-related fMRI study on risk taking by healthy individuals of high or low impulsiveness
Authors
KeywordsAnterior cingulate cortex
Dorsolateral prefrontal cortex
Insula
Orbitofrontal cortex
Parietal cortex
Risk taking
Issue Date2008
PublisherElsevier Ireland Ltd. The Journal's web site is located at http://www.elsevier.com/locate/neulet
Citation
Neuroscience Letters, 2008, v. 438 n. 2, p. 138-141 How to Cite?
AbstractThis event-related functional Magnetic Resonance Imaging study examined the differential neural activities associated with a Risky-Gains task in 18 healthy individuals of high (n = 9) or low (n = 9) impulsiveness, according to their scores on the Barratt Impulsiveness Scale (BIS). The neural activities of people belonging to the high and low impulsiveness groups were monitored by a 3T MRI scanner while they were performing the Risky-Gains task. We demonstrated that a stronger activation in the insula-orbitofrontal-parietal regions was found in the high impulsiveness group compared to the low impulsiveness group. However, the levels of activation in the lateral prefrontal and anterior cingulate regions did not differ between the two groups. The findings suggest that the neural substrates of comprehension of cognitive and affective information associated with risk-taking decision making may vary according to the impulsiveness among healthy individuals. © 2008 Elsevier Ireland Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/89512
ISSN
2015 Impact Factor: 2.107
2015 SCImago Journal Rankings: 1.035
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLee, TMCen_HK
dc.contributor.authorChan, CCHen_HK
dc.contributor.authorHan, Shen_HK
dc.contributor.authorLeung, AWSen_HK
dc.contributor.authorFox, PTen_HK
dc.contributor.authorGao, JHen_HK
dc.date.accessioned2010-09-06T09:57:58Z-
dc.date.available2010-09-06T09:57:58Z-
dc.date.issued2008en_HK
dc.identifier.citationNeuroscience Letters, 2008, v. 438 n. 2, p. 138-141en_HK
dc.identifier.issn0304-3940en_HK
dc.identifier.urihttp://hdl.handle.net/10722/89512-
dc.description.abstractThis event-related functional Magnetic Resonance Imaging study examined the differential neural activities associated with a Risky-Gains task in 18 healthy individuals of high (n = 9) or low (n = 9) impulsiveness, according to their scores on the Barratt Impulsiveness Scale (BIS). The neural activities of people belonging to the high and low impulsiveness groups were monitored by a 3T MRI scanner while they were performing the Risky-Gains task. We demonstrated that a stronger activation in the insula-orbitofrontal-parietal regions was found in the high impulsiveness group compared to the low impulsiveness group. However, the levels of activation in the lateral prefrontal and anterior cingulate regions did not differ between the two groups. The findings suggest that the neural substrates of comprehension of cognitive and affective information associated with risk-taking decision making may vary according to the impulsiveness among healthy individuals. © 2008 Elsevier Ireland Ltd. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier Ireland Ltd. The Journal's web site is located at http://www.elsevier.com/locate/neuleten_HK
dc.relation.ispartofNeuroscience Lettersen_HK
dc.rightsNeuroscience Letters. Copyright © Elsevier Ireland Ltd.en_HK
dc.subjectAnterior cingulate cortexen_HK
dc.subjectDorsolateral prefrontal cortexen_HK
dc.subjectInsulaen_HK
dc.subjectOrbitofrontal cortexen_HK
dc.subjectParietal cortexen_HK
dc.subjectRisk takingen_HK
dc.titleAn event-related fMRI study on risk taking by healthy individuals of high or low impulsivenessen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0304-3940&volume=438&spage=138&epage=141&date=2008&atitle=An+event-related+fMRI+study+on+risk+taking+by+healthy+individuals+of+high+or+low+impulsiveness.+en_HK
dc.identifier.emailLee, TMC:tmclee@hku.hken_HK
dc.identifier.authorityLee, TMC=rp00564en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.neulet.2008.04.061en_HK
dc.identifier.pmid18479820-
dc.identifier.scopuseid_2-s2.0-44149107900en_HK
dc.identifier.hkuros146369en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-44149107900&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume438en_HK
dc.identifier.issue2en_HK
dc.identifier.spage138en_HK
dc.identifier.epage141en_HK
dc.identifier.isiWOS:000257276900002-
dc.publisher.placeIrelanden_HK
dc.identifier.scopusauthoridLee, TMC=7501437381en_HK
dc.identifier.scopusauthoridChan, CCH=16244174500en_HK
dc.identifier.scopusauthoridHan, Sh=7405942378en_HK
dc.identifier.scopusauthoridLeung, AWS=7403012697en_HK
dc.identifier.scopusauthoridFox, PT=7402680249en_HK
dc.identifier.scopusauthoridGao, JH=7404475674en_HK

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