Uncovering individual variations in bystander intervention of injustice through intrinsic brain connectivity patterns

When confronted with injustice, individuals often intervene as third parties to restore justice by either punishing the perpetrator or helping the victim, even at their own expense. However, little is known about how individual differences in third-party intervention propensity are related to inter-...

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Main Authors: Yancheng Tang, Yang Hu, Jie Zhuang, Chunliang Feng, Xiaolin Zhou
Format: Article
Language:English
Published: Elsevier 2024-01-01
Series:NeuroImage
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1053811923006195
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author Yancheng Tang
Yang Hu
Jie Zhuang
Chunliang Feng
Xiaolin Zhou
author_facet Yancheng Tang
Yang Hu
Jie Zhuang
Chunliang Feng
Xiaolin Zhou
author_sort Yancheng Tang
collection DOAJ
description When confronted with injustice, individuals often intervene as third parties to restore justice by either punishing the perpetrator or helping the victim, even at their own expense. However, little is known about how individual differences in third-party intervention propensity are related to inter-individual variability in intrinsic brain connectivity patterns and how these associations vary between help and punishment intervention. To address these questions, we employed a novel behavioral paradigm in combination with resting-state fMRI and inter-subject representational similarity analysis (IS-RSA). Participants acted as third-party bystanders and needed to decide whether to maintain the status quo or intervene by either helping the disadvantaged recipient (Help condition) or punishing the proposer (Punish condition) at a specific cost. Our analyses focused on three brain networks proposed in the third-party punishment (TPP) model: the salience (e.g., dorsal anterior cingulate cortex, dACC), central executive (e.g., dorsolateral prefrontal cortex, dlPFC), and default mode (e.g., dorsomedial prefrontal cortex, dmPFC; temporoparietal junction, TPJ) networks. IS-RSA showed that individual differences in resting-state functional connectivity (rs-FC) patterns within these networks were associated with the general third-party intervention propensity. Moreover, rs-FC patterns of the right dlPFC and right TPJ were more strongly associated with individual differences in the helping propensity rather than the punishment propensity, whereas the opposite pattern was observed for the dmPFC. Post-hoc predictive modeling confirmed the predictive power of rs-FC in these regions for intervention propensity across individuals. Collectively, these findings shed light on the shared and distinct roles of key regions in TPP brain networks at rest in accounting for individual variations in justice-restoring intervention behaviors.
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spelling doaj.art-81a3329bdf844a1b961e024b25c6030b2024-01-10T04:34:48ZengElsevierNeuroImage1095-95722024-01-01285120468Uncovering individual variations in bystander intervention of injustice through intrinsic brain connectivity patternsYancheng Tang0Yang Hu1Jie Zhuang2Chunliang Feng3Xiaolin Zhou4Key Laboratory of Brain-Machine Intelligence for Information Behavior (Ministry of Education and Shanghai), School of Business and Management, Shanghai International Studies University, Shanghai, ChinaSchool of Psychology and Cognitive Science, Shanghai Key Laboratory of Mental Health and Psychological Crisis Intervention, East China Normal University, Shanghai, China; Corresponding authors.School of Psychology, Shanghai University of Sport, Shanghai, ChinaSchool of Psychology, Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, Center for Studies of Psychological Application, Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, Guangzhou, ChinaKey Laboratory of Brain-Machine Intelligence for Information Behavior (Ministry of Education and Shanghai), School of Business and Management, Shanghai International Studies University, Shanghai, China; School of Psychology and Cognitive Science, Shanghai Key Laboratory of Mental Health and Psychological Crisis Intervention, East China Normal University, Shanghai, China; Corresponding authors.When confronted with injustice, individuals often intervene as third parties to restore justice by either punishing the perpetrator or helping the victim, even at their own expense. However, little is known about how individual differences in third-party intervention propensity are related to inter-individual variability in intrinsic brain connectivity patterns and how these associations vary between help and punishment intervention. To address these questions, we employed a novel behavioral paradigm in combination with resting-state fMRI and inter-subject representational similarity analysis (IS-RSA). Participants acted as third-party bystanders and needed to decide whether to maintain the status quo or intervene by either helping the disadvantaged recipient (Help condition) or punishing the proposer (Punish condition) at a specific cost. Our analyses focused on three brain networks proposed in the third-party punishment (TPP) model: the salience (e.g., dorsal anterior cingulate cortex, dACC), central executive (e.g., dorsolateral prefrontal cortex, dlPFC), and default mode (e.g., dorsomedial prefrontal cortex, dmPFC; temporoparietal junction, TPJ) networks. IS-RSA showed that individual differences in resting-state functional connectivity (rs-FC) patterns within these networks were associated with the general third-party intervention propensity. Moreover, rs-FC patterns of the right dlPFC and right TPJ were more strongly associated with individual differences in the helping propensity rather than the punishment propensity, whereas the opposite pattern was observed for the dmPFC. Post-hoc predictive modeling confirmed the predictive power of rs-FC in these regions for intervention propensity across individuals. Collectively, these findings shed light on the shared and distinct roles of key regions in TPP brain networks at rest in accounting for individual variations in justice-restoring intervention behaviors.http://www.sciencedirect.com/science/article/pii/S1053811923006195Third-party interventionResting-state fMRI (rs-fMRI)Resting-state functional connectivity (rs-FC)Inter-subject representational similarity analysis (IS-RSA)Individual difference
spellingShingle Yancheng Tang
Yang Hu
Jie Zhuang
Chunliang Feng
Xiaolin Zhou
Uncovering individual variations in bystander intervention of injustice through intrinsic brain connectivity patterns
NeuroImage
Third-party intervention
Resting-state fMRI (rs-fMRI)
Resting-state functional connectivity (rs-FC)
Inter-subject representational similarity analysis (IS-RSA)
Individual difference
title Uncovering individual variations in bystander intervention of injustice through intrinsic brain connectivity patterns
title_full Uncovering individual variations in bystander intervention of injustice through intrinsic brain connectivity patterns
title_fullStr Uncovering individual variations in bystander intervention of injustice through intrinsic brain connectivity patterns
title_full_unstemmed Uncovering individual variations in bystander intervention of injustice through intrinsic brain connectivity patterns
title_short Uncovering individual variations in bystander intervention of injustice through intrinsic brain connectivity patterns
title_sort uncovering individual variations in bystander intervention of injustice through intrinsic brain connectivity patterns
topic Third-party intervention
Resting-state fMRI (rs-fMRI)
Resting-state functional connectivity (rs-FC)
Inter-subject representational similarity analysis (IS-RSA)
Individual difference
url http://www.sciencedirect.com/science/article/pii/S1053811923006195
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