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Social Cognitive and Affective Neuroscience Advance Access published online on January 11, 2008
Social Cognitive and Affective Neuroscience, doi:10.1093/scan/nsm040
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© The Author (2008). Published by Oxford University Press. For Permissions, please email: journals.permissions@oxfordjournals.org

Attention and emotion influence the relationship between extraversion and neural response

C. A. Hutcherson, P. R. Goldin, W. Ramel, K. McRae and J. J. Gross

Stanford University

Extraversion has been shown to positively correlate with activation within the ventral striatum, amygdala and other dopaminergically innervated, reward-sensitive regions. These regions are implicated in emotional responding, in a manner sensitive to attentional focus. However, no study has investigated the interaction among extraversion, emotion and attention. We used fMRI and dynamic, evocative film clips to elicit amusement and sadness in a sample of 28 women. Participants were instructed either to respond naturally (n = 14) or to attend to and continuously rate their emotions (n = 14) while watching the films. Contrary to expectations, striatal response was negatively associated with extraversion during amusement, regardless of attention. A negative association was also observed during sad films, but only when attending to emotion. These findings suggest that attentional focus does not influence the relationship between extraversion and neural response to positive (amusing) stimuli but does impact the response to negative (sad) stimuli.

Correspondence should be addressed to Dr James Gross, Psychology Department, Jordan Hall, Bldg. 420, Stanford, CA 94305-2130, USA. E-mail: james{at}psych.stanford.edu

This work was funded by a grant to Dr J.J.G. from the National Institute of Health (R01 MH58147).

Received July 17, 2007. Accepted November 30, 2007.


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