环境的不确定性调节了规划中的框架效应:来自分阶段神经相关的证据
Zhican He1, Zhiting Yin1, Yanping Liu1
1Department of Psychology, Sun Yat-Sen University, Guangzhou, China.
Psychophysiology
|October 30, 2025
概括
不确定性会影响人们计划如何避免损失,而不是寻求回报. 高度的不确定性会降低对结果的敏感性,影响认知资源和适应性行为.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 决策科学 决策科学 决策科学
背景情况:
- 在不确定的环境中,积极的规划对于追求奖励和避免损失至关重要.
- 在不确定性下的收益和损失框架之间,规划策略的个体差异尚不清楚.
研究的目的:
- 在不同的不确定性水平下,研究奖励方法和损失回避期间的规划过程和神经活动.
- 检查不确定性如何调节决策策略中的框架效应.
主要方法:
- 使用修改后的两阶段决策任务与事件相关潜力 (ERP) 相结合.
- 使用行为建模来分析规划策略.
- 在ERP中分析了P300和与反相关的负面性 (FRN) 幅度.
主要成果:
- 不确定性调节了框架效应:在低不确定性下,避免损失的规划更多地基于模型而不是奖励方法,但在高不确定性下,这种差异消失了.
- 高不确定性在罕见的过渡过程中增加了P300幅度,并在收到结果时降低了与反相关的负面 (FRN) 幅度.
- 避开计划显示P300幅度高于接近计划,并减少了FRN幅度,特别用于负面结果.
结论:
- 不确定性通过优先招募认知资源来影响规划策略,减少结果敏感性,同时加剧环境结构处理.
- 研究结果澄清了人类规划和适应性回避行为在不确定的环境中的神经动态.
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