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- W2117130856 abstract "Existing data are consistent with a role for the orbitofrontal cortex (OFC) either in regulating emotion and enhancing behavioral flexibility or in updating valuations on the basis of motivational states. Here the authors show that excitotoxic lesions of OFC impair value updating but do not alter either behavioral flexibility or emotion regulation and that previous observations may have been the result of damage to nearby fiber tracts. Two ideas have dominated neuropsychology concerning the orbitofrontal cortex (OFC). One holds that OFC regulates emotion and enhances behavioral flexibility through inhibitory control. The other ascribes to OFC a role in updating valuations on the basis of current motivational states. Neuroimaging, neurophysiological and clinical observations are consistent with either or both hypotheses. Although these hypotheses are compatible in principle, we present results supporting the latter view of OFC function and arguing against the former. We found that excitotoxic, fiber-sparing lesions confined to OFC in monkeys did not alter either behavioral flexibility, as measured by object reversal learning, or emotion regulation, as assessed by fear of snakes. A follow-up experiment indicated that a previously reported loss of inhibitory control resulted from damage to nearby fiber tracts and not from OFC dysfunction. Thus, OFC has a more specialized role in reward-guided behavior and emotion than has been thought, a function that includes value updating." @default.
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- W2117130856 date "2013-06-23" @default.
- W2117130856 modified "2023-10-09" @default.
- W2117130856 title "Prefrontal mechanisms of behavioral flexibility, emotion regulation and value updating" @default.
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- W2117130856 doi "https://doi.org/10.1038/nn.3440" @default.
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