Decisions 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. / Master of Science
| Identifer | oai:union.ndltd.org:VTETD/oai:vtechworks.lib.vt.edu:10919/42671 |
| Date | 14 June 2013 |
| Creators | Lauharatanahirun, Nina |
| Contributors | Psychology, Casas, Brooks, Chiu, Pearl H., Deater-Deckard, Kirby |
| Publisher | Virginia Tech |
| Source Sets | Virginia Tech Theses and Dissertation |
| Language | English |
| Detected Language | English |
| Type | Thesis, Text |
| Format | application/pdf, application/pdf |
| Rights | In Copyright, http://rightsstatements.org/vocab/InC/1.0/ |
| Relation | Lauharatanahirun_N_thesis_ETD_6.11.13.pdf |
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