反证证据如何塑造人们对决策的信心
Annika Boldt1, Yishu Sun2, Kobe Desender3
1Institute of Cognitive Neuroscience, UCL, London, UK. a.boldt@ucl.ac.uk.
Communications psychology
|October 30, 2025
概括
人类的信任判断往往过度权衡选择的矛盾证据,与预期相反. 这表明,由于决策过程,信心依赖于不确定的证据.
科学领域:
- 认知神经科学 认知神经科学
- 决策科学 决策科学 决策科学
- 心理学 心理学 心理学
背景情况:
- 规范模型建议对证据进行同等权衡,以获得信任.
- 最近的发现表明了积极证据偏差 (PEB),在这种情况下,决策一致的信息是过重的.
- 人类的信心判断可能会偏离这些模型.
研究的目的:
- 调查选择证实和选择冲突的证据如何影响信心.
- 测试大脑在自信形成中是否重视决策一致或不一致的证据.
- 解释决策中的信心计算背后的机制.
主要方法:
- 对9个数据集 (N=176) 的重新分析,涉及颜色判断和信心评级.
- 适应一个扩展的日志后方比率的信心模型.
- 一个预先注册的实验 (N=32) 操纵类别界限.
主要成果:
- 参与者在信任判断中过分重视选择相冲突的证据,与规范模型和PEB相矛盾.
- 一个强大的平均原则,类似于决策,解释了这些效应.
- 不一致的证据因接近类别界限而具有更大的权重.
- 实验性地移动类别边界改变了信心计算.
结论:
- 信心受到不确定的证据的影响.
- 这种影响源于决策机制的下游后果.
- 信任计算对证据和类别边界之间的关系敏感.
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