在风险和模两可的情况下,在决策中观察到的排斥效应的明显神经动态
Ruiwen Tao1,2, Hanxuan Zhao1,2, Can Zhang3
1Center for Magnetic Resonance Imaging Research & Shanghai Key Laboratory of Brain-Machine Intelligence for Information Behavior, Shanghai International Studies University, Shanghai 20083, China.
观察到的排斥影响决策不同于包容. 当个体目睹社会排斥时,对风险和模糊性的神经反应会有所不同,影响选择和结果评估.
科学领域:
- 神经科学是一个神经科学.
- 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:
- 观察性排斥,是一种社会排斥形式,影响人类行为.
- 观察到的排斥如何影响风险和模两可的决策的神经支尚未得到充分理解.
研究的目的:
- 调查观察到的排斥对风险和模两可的决策的影响.
- 探索神经机制,特别是与事件相关的潜力 (ERP),在排斥和包容性背景下与这些决定相关.
主要方法:
- 参与者在观察到的排斥和包容条件下从事幸运轮任务.
- 在决策和结果评估过程中记录了与事件相关的潜力 (ERP),包括Cue-P3,反相关的消极性 (FRN) 和反-P3.
主要成果:
- 线索-P3组件在包容性环境中显示出风险与模两可的决策的增强活动,但在排斥性环境中没有.
- 与反相关的消极性 (FRN) 在两种决策类型的包容性环境中,无收益结果高于收益结果,但仅在被排斥环境中的风险决策中.
- 风险和模两可的水平调节了特定的ERP组件,表明了不同的神经处理路径.
结论:
- 观察到的排斥在决策过程中造成了风险和模糊性之间的神经分离.
- 这种分离从选择阶段到结果评估是显而易见的,突出了社会排斥下改变的认知处理.
- 这些发现提供了对社会排斥对复杂决策过程的神经生物学影响的关键见解.
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