预先的信息对歧视决策和主观信心报告的影响不同
Marika Constant1,2,3, Michael Pereira4, Nathan Faivre4
1Humboldt-Universität zu Berlin, Faculty of Life Sciences, Department of Psychology, Unter den Linden 6, 10099, Berlin, Germany. marika.constant@gmail.com.
Nature communications
|September 6, 2023
概括
这项研究表明,事先的信息在决策中没有足够的权重,但在信任判断中得到了更优的利用,这挑战了贝叶斯模型中平等整合的假设.
科学领域:
- 认知心理学 认知心理学
- 计算神经科学是一种神经科学.
- 决策科学 决策科学 决策科学
背景情况:
- 贝叶斯模型假设决策和信心同样整合了先前的预期和传入的信息.
- 这种对先前信息的平等整合尚未经验测试.
研究的目的:
- 量化先前信息如何影响决策和信心.
- 测试先验在决策与信任判断中的同等权重假设.
主要方法:
- 三个实验使用双决策任务来比较后续信息匹配的条件,但在先前/概率信息性上有所不同.
- 使用外源的概率线索作为先验.
- 使用贝叶斯模型来量化先前的权重参数.
主要成果:
- 在歧视决定中,先行处罚的权重不足.
- 与决策相比,在信任判断中,先验的权重较少.
- 这些模式以概率线索持续存在,而不是由于处理时间差异.
结论:
- 在明确的信任判断中,事先的信息比在歧视决定中得到更优化的利用.
- 这些发现挑战了在标准贝叶斯决策和信心模型中具有相同先前权重的假设.
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