责任共担促进新手的互动决策获益:超扫描研究  

Shared responsibility promotes the benefit of interactive decision-making in novices:A hyperscanning study

作　　者：成晓君 刘美焕 潘亚峰 CHENG Xiaojun;LIU Meihuan;PAN Yafeng(School of Psychology,Shenzhen University,Shenzhen 518060,China;Department of Psychology and Behavioral Sciences,Zhejiang University,Hangzhou 310028,China)

机构地区：[1]深圳大学心理学院,深圳518060 [2]浙江大学心理与行为科学系,杭州310028

出　　处：《心理学报》2022年第11期1391-1402,共12页Acta Psychologica Sinica

基　　金：深圳市高等院校稳定支持计划项目(20200810193259002)资助。

摘　　要：采用基于近红外脑成像的超扫描技术,考察了责任共担(即共同承担决策结果)对个体(专家和新手)的互动决策获益(即互动决策后个体的能力提升)的影响及脑机制。结果显示,相比于非责任共担,责任共担条件下新手的互动决策获益更高,其与互动同伴在额极区域存在增强的脑间活动同步性;并且,额极的脑间活动同步性可预测新手的互动决策获益。综上,责任共担可以有效促进新手的互动决策获益,额极脑间活动同步性可能是潜在的脑机制。Social interaction is ubiquitous.It is widely accepted that social interaction,such as social decision-making,can promote individual’s ability and performance(the so-called“interaction benefit”).For example,it was reported that individuals gained more when making a joint decision with conspecifics.Little is known,however,whether and how this interaction benefit during decision making can be biased by shared responsibility(i.e.,sharing the results of joint decision-making)between the interacting agents.To address this question,the present study used the dot location estimation task(i.e.,an adapted paradigm for social decision-making)and functional near-infrared spectroscopy(fNIRS)hyperscanning(i.e.,the measurement of two or more brains simultaneously)technique to investigate the impact of shared responsibility on social decision making.A total number of 70 participants were recruited,forming 35 same-gender dyads.Each dyad included one“expert”and one“novice”(differentiated based on their performance during an initial estimation of dot locations).The fNIRS optodes were placed over prefrontal and right temporo-parietal regions,with 23 channels for each participant.Our results showed that,on the behavioral level,only the novice in a dyad benefited from interaction;also,compared to the non-shared-responsibility condition,novices obtained a higher level of interaction benefit in the shared-responsibility condition.The dyad tended to adopt a“equality strategy”(i.e.,decision-making is based on both one’s own thought and the partner’s suggestion)when sharing responsibility.On the brain imaging level,interpersonal brain synchronization(IBS)within expert-novice dyads in the prefrontal and right temporo-parietal regions were detected during social decision-making.More importantly,novices showed stronger IBS in the frontal pole for the shared-responsibility condition(vs.non-shared-responsibility condition).The enhancement of frontal pole IBS positively predicted interaction benefit during social decision-

关 键 词：互动获益 责任共担 社会决策 超扫描 近红外脑成像 

分 类 号：B849[哲学宗教—应用心理学] C91[哲学宗教—心理学] B845[经济管理]