DOI: 10.14704/nq.2018.16.5.1420

Group Effect and Its Influence on Economic Decision-making Based on Brain Evoked Potential Analysis

Yuwen Zheng, Weixian Xue


To explore how group effect generates and how it influences individual’s economic decision-making from the two levels of psychological cognition and behavior choice, as well as the prerequisites for differentiating into two different effects, this study compares the individual different acceptance degree of fair/unfair offer from inside and outside the group in making economic decision through designing the model of ultimatum bargaining game based on decision-making neuroscience. What’s more, the study attempts to explore the preconditions of the two completely different phenomena of in-group preference and black sheep effect and uses ERP technology to find the cranial nerve basis of this effect so as to reveal the brain’s thinking process.


Economic Decision-making, Social Interaction, Group Effect, ERPs

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Grecucci A, Giorgetta C. Reappraising the ultimatum: an FMRI study of emotion regulation and decision making. Cerebral Cortex 2013; 23(2): 399-410.

Li J. The relationship between mathematical expectation and economic decision and its application. Science and Technology Horizon 2015; 12: 45-46.

Liao L, Li M, Wang Z, He P. Information transmission and herd behavior in P2P network investment. Journal of Tsinghua University 2015; 1: 145-46.

Ma Q, Hu Y. The undermining effect of facial attractiveness on brain responses to fairness in the Ultimatum Game: an ERP study. Frontiers in Neuroscience 2015; 9: 77.

Molenberghs P, Morrison S. The role of the medial prefrontal cortex in social categorization. Social Cognitive and Affective Neuroscience 2014; 9(3): 292-96.

Qu C, Wang Y. Social exclusion modulates Consideration in the ultimatum game: an ERP study. Frontiers in Human Neuroscience 2013; 7: 65-66.

Wang C, Liu C, Qin X, Pang W. Research Progress on emotional infection and its influencing factors. Journal of Chengdu Normal College 2013; 12: 2-10.

Xue T, Chen H, Le G, Yao Q. The role of social identity in collective action: group emotion and effectiveness path. Journal of Psychology 2013; 8: 1.

Xue Y, Lv T, Jia Y, Chen X. Study on the main characteristics of herd effect in e-business operation. Research on Technical Economics and Management 2015; (1): 78-80.

Zhou Y, Ma R. Research on the difference of consumer food safety risk perception and recovery purchase behavior. Journal of Nanjing Agricultural University 2014; 14(1): 58-60.

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