Neuroeconomic Predictors of Adolescent Risky Decision-Making

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dc.contributor.authorLauharatanahirun, Ninaen
dc.contributor.committeechairCasas, Brooksen
dc.contributor.committeememberChiu, Pearl H.en
dc.contributor.committeememberKim-Spoon, Jungmeenen
dc.contributor.committeememberBall, Sheryl B.en
dc.contributor.departmentPsychologyen
dc.date.accessioned2019-06-01T06:00:38Zen
dc.date.available2019-06-01T06:00:38Zen
dc.date.issued2017-12-07en
dc.description.abstractAdolescence is a critical developmental period characterized by neurobiological changes and exposure to novel experiences. According to the Center for Disease Control, approximately 70% of adolescent deaths in the United States are due to risky behaviors such as reckless driving and risky sexual behavior (Kann et al., 2016). In order to better understand what drives adolescent risk-taking, the current studies utilized an interdisciplinary approach, which combined behavioral economic models and functional magnetic resonance imaging (fMRI) to understand neurobehavioral mechanisms of risky choice. The focus of the current studies is to investigate the extent to which neurobehavioral mechanisms of risky choice change across adolescence, and to identify individual differences that explain real-world risky behavior. In Study 1, we show that behavioral sensitivity to risk and neural correlates of risk processing change across a critical period of adolescence. Importantly, our results indicate that individual differences in neural, not behavioral risk sensitivity are predictive of future engagement in health risk behaviors. In Study 2, we examined the relation between inter-individual differences in adolescent expectations of valued rewards and self-reported risky behavior using an adapted behavioral economic model. Implications and future directions for adolescent risky decision-making are discussed.en
dc.description.degreePh. D.en
dc.format.mediumETDen
dc.format.mimetypeapplication/pdfen
dc.identifier.othervt_gsexam:13269en
dc.identifier.urihttp://hdl.handle.net/10919/89669en
dc.language.isoenen
dc.publisherVirginia Techen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectadolescenceen
dc.subjectrisky decision-makingen
dc.subjectfMRIen
dc.subjectindividual differencesen
dc.subjectlongitudinalen
dc.titleNeuroeconomic Predictors of Adolescent Risky Decision-Makingen
dc.typeDissertationen
dc.type.dcmitypeTexten
thesis.degree.disciplinePsychologyen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en

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