The Behavioral and Neural Mechanisms of Social and Non-social Risky Decision-Making

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dc.contributor.authorLauharatanahirun, Ninaen
dc.contributor.committeechairCasas, Brooksen
dc.contributor.committeememberChiu, Pearl H.en
dc.contributor.committeememberDeater-Deckard, Kirbyen
dc.contributor.departmentPsychologyen
dc.date.accessioned2014-03-14T21:36:13Zen
dc.date.adate2013-06-14en
dc.date.available2014-03-14T21:36:13Zen
dc.date.issued2013-05-06en
dc.date.rdate2013-06-14en
dc.date.sdate2013-05-15en
dc.description.abstractDecisions made under risk have been primarily studied within economic contexts (Platt & Huettel, 2008). This has led to the development of sound methods and models for studying risky choice behavior (Rangel, Camerer & Montague, 2008). In particular, these models are helpful for estimating how much risk an individual is willing to tolerate. However, there may be a limit in the extent to which we can generalize these estimations, in that economic models do not take into account the underlying social preferences that often guide decision makers (Fehr & Camerer, 2007; Fehr & Schmidt, 2004). This suggests that an individual's propensity for risk may be different depending on social or non-social information present within the environment (Bohnet, Greig, Herrmann & Zeckhauser, 2008). The present study aimed to: (i) assess how risk preferences may differ across social and non-social contexts; (ii) identify common and distinct neural correlates of social and non-social risk; and (iii) determine neural characteristics associated with individual sensitivities to social and non-social risk. Subjects (N=30) played an adaptation of the Trust Game while their blood-oxygen-level-dependent response was monitored using functional magnetic resonance imaging. Differences in risk preferences across social and non-social conditions as well as neuroimaging correlates of social and non-social risk will be discussed.en
dc.description.degreeMaster of Scienceen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-05152013-223854en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-05152013-223854/en
dc.identifier.urihttp://hdl.handle.net/10919/42671en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLauharatanahirun_N_thesis_ETD_6.11.13.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectfMRIen
dc.subjectsocial risken
dc.subjectindividual differencesen
dc.subjectrisken
dc.subjectsocial neuroscienceen
dc.subjecttrusten
dc.titleThe Behavioral and Neural Mechanisms of Social and Non-social Risky Decision-Makingen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplinePsychologyen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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