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Published January 12, 2011 | Supplemental Material + Published
Journal Article Open

Hypothetical and Real Choice Differentially Activate Common Valuation Areas

Abstract

Hypothetical reports of intended behavior are commonly used to draw conclusions about real choices. A fundamental question in decision neuroscience is whether the same type of valuation and choice computations are performed in hypothetical and real decisions. We investigated this question using functional magnetic resonance imaging while human subjects made real and hypothetical choices about purchases of consumer goods. We found that activity in common areas of the orbitofrontal cortex and the ventral striatum correlated with behavioral measures of the stimulus value of the goods in both types of decision. Furthermore, we found that activity in these regions was stronger in response to the stimulus value signals in the real choice condition. The findings suggest that the difference between real and hypothetical choice is primarily attributable to variations in the value computations of the medial orbitofrontal cortex and the ventral striatum, and not attributable to the use of different valuation systems, or to the computation of stronger stimulus value signals in the hypothetical condition.

Additional Information

© 2011 the authors. Received March 27, 2010; revised Sept. 21, 2010; accepted Oct. 19, 2010. This work was supported by Human Frontiers of Science Program (C.F.C.), The Betty and Gordon Moore Foundation (C.F.C., A.R.), and The Lipper Family Foundation Fellowship in Neuroeconomics (M.J.K.). Author contributions were as follows: design (M.J.K., A.R., C.F.C.), fMRI collection (M.J.K., M.C.), fMRI analysis (M.J.K., A.R., C.F.C.), other data (M.J.K.), and writing (M.J.K., C.F.C., A.R.).

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Published - Kang2011p12723J_Neurosci.pdf

Supplemental Material - Supplemental_Material.pdf

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