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    Real-Time Value Integration during Economic Choice Is Regulated by Orbitofrontal Cortex

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    Author
    Gardner, M.P.H.
    Conroy, J.C.
    Schoenbaum, G.
    Date
    2019
    Journal
    Current Biology
    Publisher
    Cell Press
    Type
    Article
    
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    Show full item record
    See at
    https://doi.org/10.1016/j.cub.2019.10.058
    Abstract
    Appropriate decision making depends on up-to-date information about the available offers. Here, Gardner et al. show that immediate adjustments in choice behavior following revaluation of an offer require the orbitofrontal cortex to be online at the time of the choice. © 2019Neural correlates implicate the orbitofrontal cortex (OFC) in value-based or economic decision making [1–3]. Yet inactivation of OFC in rats performing a rodent version of the standard economic choice task is without effect [4, 5], a finding more in accord with ideas that the OFC is primarily necessary for behavior when new information must be taken into account [6–9]. Neural activity in the OFC spontaneously updates to reflect new information, particularly about outcomes [10–16], and the OFC is necessary for adjustments to learned behavior only under these conditions [4, 16–26]. Here, we merge these two independent lines of research by inactivating lateral OFC during an economic choice that requires new information about the value of the predicted outcomes to be incorporated into an already established choice. Outcome value was changed by pre-feeding the rats one of two food options before testing. In control rats, this pre-feeding resulted in divergent changes in choice behavior that depended on the rats’ prior preference for the pre-fed food. Optogenetic inactivation of the OFC disrupted this bi-directional effect of pre-feeding without affecting other measures that describe the underlying choice behavior. This finding unifies the role of the OFC in economic choice with its role in a host of other behaviors, causally demonstrating that the OFC is not necessary for economic choice per se—unless that choice incorporates new information about the outcomes. © 2019
    Sponsors
    National Institute on Drug Abuse (NIDA)
    Keyword
    decision-making
    economic
    optogenetics
    orbitofrontal
    revaluation
    satiety
    Identifier to cite or link to this item
    https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076252288&doi=10.1016%2fj.cub.2019.10.058&partnerID=40&md5=0fc05432fa237337ab4b1fd07a22f004; http://hdl.handle.net/10713/11533
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.cub.2019.10.058
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