Baumgartner, Thomas and Schiller, Bastian and Rieskamp, Jörg and Gianotti, Lorena R. R. and Knoch, Daria. (2014) Diminishing parochialism in intergroup conflict by disrupting the right temporo-parietal junction. Social Cognitive and Affective Neuroscience, 9 (5). pp. 653-660.
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Official URL: http://edoc.unibas.ch/dok/A6124593
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Abstract
Individuals react to violation of social norms by outgroup members differently than to transgressions of those same norms by ingroup members: namely outgroup perpetrators are punished much more harshly than ingroup perpetrators. This parochial punishment pattern has been observed and extensively studied in social psychology and behavioral economics. Despite progress in recent years, however, little is known about the neural underpinnings of this intergroup bias. Here, we demonstrate by means of transcranial magnetic stimulation (TMS) that the transient disruption of the right, but not the left temporo-parietal junction (TPJ), reduces parochial punishment in a third-party punishment paradigm with real social groups. Moreover, we show that this observed TMS effect on parochial punishment is mediated by a classical punishment motive, i.e. retaliation. Finally, our data suggests that a change in perspective-taking might be the underlying mechanism that explains the impact of right TPJ disruption on retaliation motivation and parochial punishment. These findings provide the first causal evidence that the right TPJ plays a pivotal role in the implementation of parochial behaviors.
Faculties and Departments: | 07 Faculty of Psychology > Departement Psychologie > Society & Choice > Economic Psychology (Rieskamp) |
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UniBasel Contributors: | Rieskamp, Jörg and Baumgartner, Thomas and Gianotti, Lorena R. R. and Knoch, Daria |
Item Type: | Article, refereed |
Article Subtype: | Research Article |
Publisher: | Oxford University Press |
ISSN: | 1749-5016 |
e-ISSN: | 1749-5024 |
Note: | Publication type according to Uni Basel Research Database: Journal article |
Identification Number: |
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Last Modified: | 04 Dec 2017 09:26 |
Deposited On: | 12 Sep 2014 08:02 |
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