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    Neuropsychologia. 2011 Feb;49(3):479-85. Epub 2010 Dec 15.

    Striatal responses to negative monetary outcomes differ between temperamentally inhibited and non-inhibited adolescents.

    Helfinstein SM, Benson B, Perez-Edgar K, Bar-Haim Y, Detloff A, Pine DS, Fox NA, Ernst M.

    Source

    University of Maryland, College Park, MD 20742, USA. shelfins@umd.edu

    Abstract

    The present study compared blood oxygen level dependent (BOLD) response in behaviorally inhibited and behaviorally non-inhibited adolescents to positive and negative feedback following their choice in a reward task. Previous data in these same subjects showed enhanced activation in striatal areas in behaviorally inhibited subjects to cues predicting gain or a loss. However, no analyses had examined responses following actual gains or losses. Relative to non-inhibited subjects, behaviorally inhibited subjects in the current study showed enhanced caudate response to negative but not positive feedback, indicating that striatal sensitivity to feedback may be specific to aversive information. In addition, compared to non-inhibited subjects, behaviorally inhibited subjects exhibited reduced differentiation between positive and negative feedback in ventromedial prefrontal cortex (vmPFC). This suggests a perturbed ability to encode reward value.

    Copyright © 2010 Elsevier Ltd. All rights reserved.

    PMID:
    21167189
    [PubMed - indexed for MEDLINE]
    PMCID:
    PMC3065071
    Free PMC Article

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