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Born for fairness: evidence of genetic contribution to a neural basis of fairness intuition
Wang, Yun; Zheng, Dang; Chen, Jie; Rao, Li-Lin; Li, Shu; Zhou, Yuan
First AuthorWang, Yun
2019-03
Source PublicationSocial cognitive and affective neuroscience
SubtypeArticle
Volume14Pages:539-548
QuartileQ1
Abstract

Human beings often curb self-interest to develop and enforce social norms, such as fairness, as exemplified in the ultimatum game (UG). Inspired by the dual-system account for the responder's choice during the UG, we investigated whether the neural basis of psychological process induced by fairness is under genetic control using a twin fMRI study (62 monozygotic, 48 dizygotic; mean age: 19.32±1.38years). We found a moderate genetic contribution to the rejection rate of unfair proposals (24%-35%), independent of stake size or proposer type, during the UG. Using a voxel-level analysis, we found that genetic factors moderately contributed to unfairness-evoked activation in the bilateral anterior insula (AI), regions representing the intuition of fairness norm violations (mean heritability: left 37%, right 40%). No genetic contributions were found in regions related to deliberate, controlled processes in the UG. This study provides the first evidence that evoked brain activity by unfairness in the bilateral AI is influenced by genes and sheds light on the genetic basis of brain processes underlying costly punishment.

KeywordfMRI heritability social norm twin study ultimatum game
DOI10.1093/scan/nsz031
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/29136
Collection中国科学院行为科学重点实验室
AffiliationCAS Key Laboratory of Behavioral Science, Institute of Psychology, Beijing, China.
Recommended Citation
GB/T 7714
Wang, Yun,Zheng, Dang,Chen, Jie,et al. Born for fairness: evidence of genetic contribution to a neural basis of fairness intuition[J]. Social cognitive and affective neuroscience,2019,14:539-548.
APA Wang, Yun,Zheng, Dang,Chen, Jie,Rao, Li-Lin,Li, Shu,&Zhou, Yuan.(2019).Born for fairness: evidence of genetic contribution to a neural basis of fairness intuition.Social cognitive and affective neuroscience,14,539-548.
MLA Wang, Yun,et al."Born for fairness: evidence of genetic contribution to a neural basis of fairness intuition".Social cognitive and affective neuroscience 14(2019):539-548.
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