人类理性地适应了对不确定性的近似估计
Erdem Pulcu1, Michael Browning1,2
1Department of Psychiatry, University of Oxford, Oxford, United Kingdom.
eLife
|July 8, 2025
概括
人类适应变化的挥发性,但在学习时不适应噪音. 我们的发现表明,不准确的噪音估计导致了不适当的反应,将噪音误认为是波动性.
科学领域:
- 认知科学是一种认知科学.
- 神经科学是一个神经科学.
- 决策方式 决策方式
背景情况:
- 有效的学习取决于区分结果的随机性 (噪声) 和过程变化 (波动性).
- 以前的研究证实了人类适应波动,但提供了适应噪音的有限证据.
研究的目的:
- 调查人类适应不同水平的波动性和噪音的情况.
- 探索选择行为和瞳孔测量在测量对不确定性的反应中的作用.
主要方法:
- 人类参与者完成了涉及可变波动和噪声的任务.
- 选择行为和瞳孔测量被记录下来,以评估认知和兴奋反应.
- 用贝叶斯观察者模型来分析适应策略.
主要成果:
- 参与者成功地适应了波动的变化.
- 对噪声的适应没有如预期的那样被观察到.
- 分析显示,参与者估计噪音不准确,误解为波动.
结论:
- 人类学习系统擅长适应波动,但难以准确估计噪音.
- 不准确的噪音估计导致了不适应的反应,噪音被错误地视为波动性.
- 未来的研究应该专注于改进学习模型中的噪声估计机制.
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