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Articles, Behavioral/Systems/Cognitive

Neural Correlates of Value, Risk, and Risk Aversion Contributing to Decision Making under Risk

George I. Christopoulos, Philippe N. Tobler, Peter Bossaerts, Raymond J. Dolan and Wolfram Schultz
Journal of Neuroscience 7 October 2009, 29 (40) 12574-12583; DOI: https://doi.org/10.1523/JNEUROSCI.2614-09.2009
George I. Christopoulos
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Philippe N. Tobler
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Peter Bossaerts
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Raymond J. Dolan
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Wolfram Schultz
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Abstract

Decision making under risk is central to human behavior. Economic decision theory suggests that value, risk, and risk aversion influence choice behavior. Although previous studies identified neural correlates of decision parameters, the contribution of these correlates to actual choices is unknown. In two different experiments, participants chose between risky and safe options. We identified discrete blood oxygen level-dependent (BOLD) correlates of value and risk in the ventral striatum and anterior cingulate, respectively. Notably, increasing inferior frontal gyrus activity to low risk and safe options correlated with higher risk aversion. Importantly, the combination of these BOLD responses effectively decoded the behavioral choice. Striatal value and cingulate risk responses increased the probability of a risky choice, whereas inferior frontal gyrus responses showed the inverse relationship. These findings suggest that the BOLD correlates of decision factors are appropriate for an ideal observer to detect behavioral choices. More generally, these biological data contribute to the validity of the theoretical decision parameters for actual decisions under risk.

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The Journal of Neuroscience: 29 (40)
Journal of Neuroscience
Vol. 29, Issue 40
7 Oct 2009
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Neural Correlates of Value, Risk, and Risk Aversion Contributing to Decision Making under Risk
George I. Christopoulos, Philippe N. Tobler, Peter Bossaerts, Raymond J. Dolan, Wolfram Schultz
Journal of Neuroscience 7 October 2009, 29 (40) 12574-12583; DOI: 10.1523/JNEUROSCI.2614-09.2009

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Neural Correlates of Value, Risk, and Risk Aversion Contributing to Decision Making under Risk
George I. Christopoulos, Philippe N. Tobler, Peter Bossaerts, Raymond J. Dolan, Wolfram Schultz
Journal of Neuroscience 7 October 2009, 29 (40) 12574-12583; DOI: 10.1523/JNEUROSCI.2614-09.2009
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