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Journal Article

Citation

Kelly CR, Grinband J, Hirsch J. PLoS One 2007; 2(12): e1268.

Affiliation

Department of Radiology, Functional MRI Research Center, Columbia University, Neurological Institute, New York, New York, United States of America. crk2002@columbia.edu

Copyright

(Copyright © 2007, Public Library of Science)

DOI

10.1371/journal.pone.0001268

PMID

18060062

PMCID

PMC2092389

Abstract

BACKGROUND: Media depictions of violence, although often claimed to induce viewer aggression, have not been shown to affect the cortical networks that regulate behavior. METHODOLOGY/PRINCIPAL FINDINGS: Using functional magnetic resonance imaging (fMRI), we found that repeated exposure to violent media, but not to other equally arousing media, led to both diminished response in right lateral orbitofrontal cortex (right ltOFC) and a decrease in right ltOFC-amygdala interaction. Reduced function in this network has been previously associated with decreased control over a variety of behaviors, including reactive aggression. Indeed, we found reduced right ltOFC responses to be characteristic of those subjects that reported greater tendencies toward reactive aggression. Furthermore, the violence-induced reduction in right ltOFC response coincided with increased throughput to behavior planning regions. CONCLUSIONS: These novel findings establish that even short-term exposure to violent media can result in diminished responsiveness of a network associated with behaviors such as reactive aggression.


Language: en

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