Journal
CEREBRAL CORTEX
Volume 21, Issue 4, Pages 769-776Publisher
OXFORD UNIV PRESS INC
DOI: 10.1093/cercor/bhq145
Keywords
fMRI; insula; juice; value; vmPFC
Categories
Funding
- National Science Foundation [0617174]
- Searle Scholarship
- Japan Science and Technology Agency
- Gordon and Betty Moore Foundation
- Ministry of Education, Science and Technology [R31-2008-000-10008-0]
- National Research Foundation of Korea [인06A1602, 2006-2005110] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Direct For Social, Behav & Economic Scie
- Division Of Behavioral and Cognitive Sci [0617174] Funding Source: National Science Foundation
- Div Of Biological Infrastructure
- Direct For Biological Sciences [0922982] Funding Source: National Science Foundation
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Although much is known about the neural substrates of reward, the question of whether expectation of different types of reinforcers engage distinct or overlapping brain circuitry has not been addressed definitively. In the present study, human subjects, while being scanned with functional magnetic resonance imaging, performed a simple reward-based action selection task to obtain different magnitudes of either monetary outcomes (winning or losing money) or juice outcomes (pleasant apple juice or an unpleasant salt flavor). At the group level, we found partially overlapping value-related activity within ventromedial prefrontal cortex (vmPFC) during anticipation of juice and money reward outcomes. Analogous results were found in the right anterior insula, except that this region showed negative correlations as a function of increasing expected reward. These results indicate that vmPFC and anterior insula contain overlapping representations of anticipatory value, consistent with the existence of a common currency for the value of expected outcomes in these regions.
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