Structure of orbitofrontal cortex predicts social influence

Campbell-Meiklejohn, Daniel K, Kanai, Ryota, Bahrami, Bahador, Bach, Dominik R, Dolan, Raymond J, Roepstorff, Andreas and Frith, Chris D (2012) Structure of orbitofrontal cortex predicts social influence. Current Biology, 22 (4). R123-R124. ISSN 0960-9822

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Abstract

Some people conform more than others. Across different contexts, this tendency is a fairly stable trait [1]. This stability suggests that the tendency to conform might have an anatomical correlate [2]. Values that one associates with available options, from foods to political candidates, help to guide choices and behaviour. These values can often be updated by the expressed preferences of other people as much as by independent experience. In this correspondence, we report a linear relationship between grey matter volume (GM) in a region of lateral orbitofrontal cortex (lOFCGM) and the tendency to shift reported desire for objects toward values expressed by other people. This effect was found in precisely the same region in each brain hemisphere. lOFCGM also predicted the functional hemodynamic response in the middle frontal gyrus to discovering that someone else's values contrast with one's own. These findings indicate that the tendency to conform one's values to those expressed by other people has an anatomical correlate in the human brain.

Item Type: Article
Schools and Departments: School of Psychology > Psychology
Subjects: R Medicine > RC Internal medicine > RC0321 Neurosciences. Biological psychiatry. Neuropsychiatry
Depositing User: Ryota Kanai
Date Deposited: 11 Mar 2013 10:12
Last Modified: 20 Mar 2017 12:03
URI: http://sro.sussex.ac.uk/id/eprint/43907

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