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    Why Do Some Find it Hard to Disagree? An fMRI Study

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    Author
    Dominguez D, JF; Taing, SA; Molenberghs, P
    Date
    2016-01-29
    Source Title
    Frontiers in Human Neuroscience
    Publisher
    FRONTIERS MEDIA SA
    University of Melbourne Author/s
    Molenberghs, Pascal
    Affiliation
    Melbourne School of Psychological Sciences
    Metadata
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    Document Type
    Journal Article
    Citations
    Dominguez D, J. F., Taing, S. A. & Molenberghs, P. (2016). Why Do Some Find it Hard to Disagree? An fMRI Study. FRONTIERS IN HUMAN NEUROSCIENCE, 9 (JAN2016), https://doi.org/10.3389/fnhum.2015.00718.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/255593
    DOI
    10.3389/fnhum.2015.00718
    Abstract
    People often find it hard to disagree with others, but how this disposition varies across individuals or how it is influenced by social factors like other people's level of expertise remains little understood. Using functional magnetic resonance imaging (fMRI), we found that activity across a network of brain areas [comprising posterior medial frontal cortex (pMFC), anterior insula (AI), inferior frontal gyrus (IFG), lateral orbitofrontal cortex, and angular gyrus] was modulated by individual differences in the frequency with which participants actively disagreed with statements made by others. Specifically, participants who disagreed less frequently exhibited greater brain activation in these areas when they actually disagreed. Given the role of this network in cognitive dissonance, our results suggest that some participants had more trouble disagreeing due to a heightened cognitive dissonance response. Contrary to expectation, the level of expertise (high or low) had no effect on behavior or brain activity.

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