rhesus 的选择表明,对模两可的厌恶是由悲观的概率估计驱动的
Willa G Kerkhoff1,2, William R Stauffer1,2
1Center for Neuroscience at the University of Pittsburgh, Pittsburgh, PA 15213.
bioRxiv : the preprint server for biology
|December 25, 2025
概括
决策者表现出对模两可的厌恶,他们更喜欢已知的风险而不是未知的概率. 这项研究揭示了非人类灵长类动物不一致的概率判断,影响了经济决策.
科学领域:
- 神经科学是一个神经科学.
- 行为经济学是一种行为经济学.
- 决策科学 决策科学 决策科学
背景情况:
- 经济不确定性表现为风险 (已知的概率) 和模糊性 (未知的概率).
- 对模两可的厌恶,即偏爱风险而非模两可,是很常见的,但其潜在机制尚不清楚.
- 非人类灵长类动物模型提供了一个受控的环境,以调查不确定性下决策.
研究的目的:
- 调查驱动对模两可的厌恶的心理和神经机制.
- 开发和验证一种非人类灵长类任务,用于研究对模两可的态度.
- 探索主观概率判断如何受到潜在结果的大小的影响.
主要方法:
- 一个新的非人类灵长类动物任务旨在评估风险和模两可的博之间的选择.
- 收集行为数据来量化模两可的厌恶.
- 分析了风险和模两可的选择之间的主观等价点,以了解概率误解.
主要成果:
- 非人类灵长类动物表现出强烈的模两可的厌恶,即使有学习的机会也坚持不.
- 很大的潜在结果导致低估了有利的模糊选项的概率.
- 小的潜在结果导致了对有利的模两可选项概率的高估.
- 观察到不一致的概率判断,表明缺乏稳定的信念体系.
结论:
- 灵长类动物对模两可的厌恶是强大的,并受到结果大小的影响.
- 不一致的主观概率判断有助于低于最佳经济决策.
- 这项研究为探索对模两可的厌恶和经济选择的神经生理学的基础提供了基础.
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