在社会不确定性中做出集体决策的参与者二元会采用剥削策略,并表现出增强的脑间同步
Xiaorong Gan1, Linwei Yu1, Shuyi Li1
1Shanghai Key Laboratory of Mental Health and Psychological Crisis Intervention, School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, PR China.
Biological psychology
|February 12, 2026
概括
在不确定的情况下,团队决策倾向于利用过去的成功,而不是探索新的选择. 这一策略与个体之间的同步大脑活动有关,特别是在右角-角交叉点.
科学领域:
- 认知神经科学 认知神经科学
- 社会心理学 社会心理学
- 决策科学 决策科学 决策科学
背景情况:
- 在社会不确定性下进行集体决策往往会导致两极分化的行为.
- 存在两个假设:小组探索新的选择或利用过去的成功.
研究的目的:
- 调查群体是否在社会不确定性中进行探索或剥削.
- 检查神经机制,特别是人际大脑同步 (IBS),是群体决策的基础.
主要方法:
- 迪亚德进行了一场信任游戏,用功能近红外光谱 (fNIRS) 超扫描测量大脑活动.
- 计算建模分析了决策策略.
- 大脑与大脑之间的连接分析评估了人际大脑同步 (IBS).
主要成果:
- 集团在收益条件下增加了投资,这表明了开发战略.
- 剥削与右门关节 (rTPJ) 的增强性IBS有关.
- 开发策略和增强的IBS都在游戏后半段出现.
结论:
- 参与者在社会不确定性中采用剥削策略,依靠过去的积极经验.
- 在rTPJ中增强的人际同步与增加的集团投资有关.
- 这项研究揭示了在不确定性下推动群体决策的认知和大脑间过程.
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