时间背景对次优选择的影响
Margaret A McDevitt1, Jeffrey M Pisklak2, Roger M Dunn3
1McDaniel College, Westminster, MD, 21157, USA. mmcdevit@mcdaniel.edu.
Psychonomic bulletin & review
|May 17, 2024
概括
子 子 子
科学领域:
- 行为经济学是一种行为经济学.
- 动物认知动物的认知能力.
- 在不确定性下做决定
背景情况:
- 奖励预期和信号影响选择行为.
- 好消息信号 (SiGN) 模型解释了奖励预测刺激如何影响决策.
- 之前的研究表明,子有时更喜欢被标记为低于最佳的奖励.
研究的目的:
- 在子中测试SiGN模型的定量预测.
- 调查选择期持续时间对奖励偏好的影响.
- 要确定时间上下文是否会改变选择选项的相对值.
主要方法:
- 子在有信号的20%食物奖励和没有信号的50%食物奖励之间做出选择.
- 在两个实验中,选择期的持续时间被系统地操纵.
- 我们对"好消息信号" (SiGN) 模型的预测进行了定量评估.
主要成果:
- 子更喜欢在较短的选择时间内选择非最佳信号选项.
- 子在更长的选择时间中更喜欢最佳的无信号选项.
- 结果强烈支持SiGN模型的预测.
结论:
- 选择期的持续时间显著地影响了人们对有信号和无信号奖励的偏好.
- 期权的相对价值是动态的,取决于环境,而不是固定的.
- SiGN模型准确地预测了受时间因素影响的选择行为.
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