感知准确性和确定性对冒险行为产生冲突的影响
Sharoni Shafir1, Taly Reich, Erez Tsur
1B. Triwaks Bee Research Center, Department of Entomology, Faculty of Agricultural, Food and Environmental Quality Sciences, The Hebrew University of Jerusalem, Rehovot 76100, Israel.
Nature
|June 13, 2008
概括
决策研究揭示了确定性效应,即确定性增加了对更安全选择的偏好. 感知准确性,而不是物种,解释了人类和蜜蜂关于这种决策偏差的相互矛盾的结果.
科学领域:
- 行为经济学是一种行为经济学.
- 动物认知 动物认知
- 决策科学 决策科学 决策科学
背景情况:
- 确定性效应是对预期效用理论的一种偏差,描述了对确定结果的偏好增加.
- 之前的研究表明,在动物中确定的效果,但在人类中反向的效果,造成复制危机.
- 相互矛盾的研究结果表明,潜在的机制会在风险和确定性下影响决策.
研究的目的:
- 调和关于人类和动物确定性效应的相互矛盾的发现.
- 调查感知准确性在风险下决策中的作用.
- 测试基于过程的模型,在基于经验的选择中匹配行为.
主要方法:
- 与人类和蜜蜂 (蜜蜂) (Apis mellifera) 进行的实验涉及基于经验的决策任务.
- 操纵感知准确度以改变奖励值的歧视.
- 将结果与基于过程的匹配行为模型进行比较.
主要成果:
- 确定性效应和反向确定性效应可以在人类和蜜蜂中实验性诱导.
- 确定性效应发生在奖励歧视很难时 (高感知噪声).
- 反向确定性效应发生在奖励歧视容易时 (低感知噪声).
结论:
- 感知准确性,而不是物种或决策机制,解释了相互矛盾的确定性效应发现.
- 一个简单的基于过程的匹配行为模型解释了基于经验的决策,表现出确定性和反向确定性效应.
- 研究结果强调了感知因素在理解跨物种决策偏见方面的重要性.
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