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  Effective connectivity of brain regions underlying third-party punishment: Functional MRI and Granger causality evidence

Bellucci, G., Chernyak, S., Hoffman, M., Deshpande, G., Dal Monte, O., Knutson, K., et al. (2017). Effective connectivity of brain regions underlying third-party punishment: Functional MRI and Granger causality evidence. Social Neuroscience, 17(2), 124-134. doi:10.1080/17470919.2016.1153518.

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Bellucci, G1, Author              
Chernyak, S, Author
Hoffman, M, Author
Deshpande, G, Author
Dal Monte, O, Author
Knutson, KM, Author
Grafman, J, Author
Krueger, F, Author
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1External Organizations, ou_persistent22              

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 Abstract: Third-party punishment (TPP) for norm violations is an essential deterrent in large-scale human societies, and builds on two essential cognitive functions: evaluating legal responsibility and determining appropriate punishment. Despite converging evidence that TPP is mediated by a specific set of brain regions, little is known about their effective connectivity (direction and strength of connections). Applying parametric event-related functional MRI in conjunction with multivariate Granger causality analysis, we asked healthy participants to estimate how much punishment a hypothetical perpetrator deserves for intentionally committing criminal offenses varying in levels of harm. Our results confirmed that TPP legal decisions are based on two domain-general networks: the mentalizing network for evaluating legal responsibility and the central-executive network for determining appropriate punishment. Further, temporal pole (TP) and dorsomedial prefrontal cortex (PFC) emerged as hubs of the mentalizing network, uniquely generating converging output connections to ventromedial PFC, temporo-parietal junction, and posterior cingulate. In particular, dorsomedial PFC received inputs only from TP and both its activation and its connectivity to dorsolateral PFC correlated with degree of punishment. This supports the hypothesis that dorsomedial PFC acts as the driver of the TPP activation pattern, leading to the decision on the appropriate punishment. In conclusion, these results advance our understanding of the organizational elements of the TPP brain networks and provide better insights into the mental states of judges and jurors tasked with blaming and punishing legal wrongs.

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 Dates: 2016-032017-04
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1080/17470919.2016.1153518
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Title: Social Neuroscience
  Abbreviation : Soc Neurosci
Source Genre: Journal
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Publ. Info: Hove : Psychology Press
Pages: - Volume / Issue: 17 (2) Sequence Number: - Start / End Page: 124 - 134 Identifier: ISSN: 1747-0919
CoNE: https://pure.mpg.de/cone/journals/resource/1747-0919