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心理学报  2017, Vol. 49 Issue (8): 1080-1088    DOI: 10.3724/SP.J.1041.2017.01080
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 自恋人格调节信任博弈的结果评价
 王益文1;  付 超1;  任相峰1;  林羽中1; 郭丰波1;  张 振1;  黄 亮2;袁 博3;  郑玉玮4
 (1福州大学心理与认知科学研究所, 福州 350116) (2闽南师范大学应用心理研究所, 漳州, 363000) (3宁波大学心理学系暨研究所, 宁波 315211) (4济南大学教育与心理科学学院, 济南 250022)
 Narcissistic personality modulates outcome evaluation in the trust game
WANG Yiwen1; FU Chao1; REN Xiangfeng1; LIN Yuzhong1; GUO Fengbo1; ZHANG Zhen1; HUANG Liang2; YUAN Bo3; ZHENG Yuwei4
 (1 Institute of Psychological and Cognitive Sciences, Fuzhou University, Fuzhou 350116, China) (2 Institute of Applied Psychology, Minnan Normal University, Zhangzhou 363000, China) (3 Department of Psychology, Ningbo University, Ningbo 315211, China) (4 School of Education and Psychology, University of Jinan, Jinan 250022, China)
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摘要  自恋人格个体表现出亲社会行为的减少和对他人的反馈敏感。信任是人类社会互动行为的基础, 自恋人格特质可能影响他们的信任决策。为了探究自恋水平如何影响信任博弈中结果评价的大脑活动, 本研究采用事件相关电位技术记录了38名被试完成单次信任博弈时的脑电波。行为结果发现相对高自恋者的信任选择率显著低于相对低自恋者的信任选择率。脑电结果表明, 相对高自恋者信任损失反馈减互惠获利反馈所得的FRN差异波(dFRN)显著地大于相对低自恋者, 并且相对高自恋者结果评价诱发的P300波幅显著地大于相对低自恋者。本研究提供了自恋人格个体信任博弈中结果评价的初步神经电生理学证据。
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关键词  信任博弈 自恋人格 结果评价 dFRN P300    
Abstract: Narcissism is a personality characteristic involving arrogance, a feeling of entitlement, and the willingness to exploit others. Narcissistic people tend to be self-centered, grandiose and sensitive to feedback from others. They are also extremely selfish, focusing solely on themselves, lacking regard for others, and showing deficits in pro-social behavior and emotional empathy. Research on Social Value Orientation (SVO) has found that proself people are less trusting and trustworthy than prosocial people. Because of his or her egoism and lack of emotional empathy, the narcissist may tend to not trust other people, especially unfamiliar ones. Relatedly, narcissism may also modulate the outcome evaluation of trust decisions. Previous social neuroscience research has revealed two ERP components related to outcome evaluation, including feedback related negativity (FRN) and P300. In this study, we aimed to investigate how narcissistic personality modulates outcome evaluation in the one-shot trust game. 38 healthy undergraduate participated in our experiment. To assess their narcissism and control for potential depression, all participants completed a brief version of narcissistic personality inventory (NPI-16) and Beck depression inventory-II (BDI-II) before the behavioral task. Participants then played the role of trustor in the one-shot trust game, while their electroencephalograms (EEGs) were recorded. In the trust game, each participant decide whether to trust or distrust different partners over 150 trials. The partners’ reciprocation strategies were pre-programed by the experimenter (the overall reciprocating rate was 50%). All participants were provided with post-decision feedback about the outcome of their decisions (gain or loss game points) in each trail. We analyzed their behavioral responses at the decision-making stage and ERP components at the outcome evaluation stage. Based on NPI-16 scores, 19 participants were classified as relatively low narcissists (scores below the 50th percentile), while the other 19 participants were classified as relatively high narcissists (scores above the 50th percentile); these two groups differed significantly in NPI-16 scores, but not significantly in BDI-II scores (depression). Behavioral results revealed that the high-narcissistic group made less trusting choices than did the low-narcissistic group in the trust game. ERP results indicated that the feedback-related negativity (FRN) was more negative going in response to loss feedback compared to gain feedback. This may indicate that participants typically experienced expectation violation when their trust was exploited. More importantly, the FRN difference wave (dFRN, loss-FRN minuses gain-FRN) was larger for the high narcissistic group than the low narcissistic group. Relatedly, the P300 amplitudes following outcome feedback were larger for the high narcissistic group than the low narcissistic group, especially at the frontalcentral site (FCz). Both dFRN and P300 effects suggested that more narcissistic people may be more sensitive to the outcome feedback of trust decisions. The present study provides preliminary evidence that individual differences in narcissism modulate trust decision- making and outcome evaluation.
Key words Trust game    narcissistic personality    outcome evaluation    differentiated feedback related negativity    P300
收稿日期: 2015-12-21      出版日期: 2017-06-25
ZTFLH:     
  B849:C91  
  B845  
基金资助: 国家自然科学基金(31371045)、新世纪优秀人才支持计划(NCET-11-1065)、三年千人计划和中青年骨干创新人才资助。
通讯作者: 张振, E-mail: zhangzhenpsy@126.com; 袁博, E-mail: yuanbopsy@gmail.com     E-mail: E-mail: zhangzhenpsy@126.com; E-mail: yuanbopsy@gmail.com
引用本文:   
王益文, 付超, 任相峰, 林羽中, 郭丰波, 张 振, 黄亮, 袁博, 郑玉玮.  自恋人格调节信任博弈的结果评价[J]. 心理学报, 2017, 49(8): 1080-1088.
WANG Yiwen, FU Chao, REN Xiangfeng, LIN Yuzhong, GUO Fengbo.  Narcissistic personality modulates outcome evaluation in the trust game. Acta Psychologica Sinica, 2017, 49(8): 1080-1088.
链接本文:  
http://journal.psych.ac.cn/xlxb/CN/10.3724/SP.J.1041.2017.01080      或      http://journal.psych.ac.cn/xlxb/CN/Y2017/V49/I8/1080
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