期刊
NATURE NEUROSCIENCE
卷 16, 期 4, 页码 479-U152出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/nn.3337
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资金
- Science Foundation Ireland [08/IN.1/B1844]
- Gordon and Betty foundation
- Division Of Behavioral and Cognitive Sci
- Direct For Social, Behav & Economic Scie [0959140] Funding Source: National Science Foundation
- Div Of Biological Infrastructure
- Direct For Biological Sciences [0922982] Funding Source: National Science Foundation
- Science Foundation Ireland (SFI) [08/IN.1/B1844] Funding Source: Science Foundation Ireland (SFI)
To choose between manifestly distinct options, it is suggested that the brain assigns values to goals using a common currency. Although previous studies have reported activity in ventromedial prefrontal cortex (vmPFC) correlating with the value of different goal stimuli, it remains unclear whether such goal-value representations are independent of the associated stimulus categorization, as required by a common currency. Using multivoxel pattern analyses on functional magnetic resonance imaging (fMRI) data, we found a region of medial prefrontal cortex to contain a distributed goal-value code that is independent of stimulus category. More ventrally in the vmPFC, we found spatially distinct areas of the medial orbitofrontal cortex to contain unique category-dependent distributed value codes for food and consumer items. These results implicate the medial prefrontal cortex in the implementation of a common currency and suggest a ventral versus dorsal topographical organization of value signals in the vmPFC.
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