边界更新作为历史源对决策不确定性的影响
1Department of Brain and Cognitive Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.
iScience
|November 29, 2023
概括
最近的刺激历史影响决策. 边界更新解释了过去的刺激如何影响选择偏差和决策不确定性,显示不确定性随着一致的选择而增加.
科学领域:
- 认知心理学 认知心理学
- 神经科学是一个神经科学.
- 决策研究 决策研究
背景情况:
- 在二进制分类任务中的当前选择经常显示出排斥性偏差,与最近的刺激历史负相关.
- 这种排斥性偏差是由边界更新解释的,其中决策边界向前面的刺激转移.
- 边界更新过程理论上将刺激历史与决策不确定性联系起来,但这种联系在经验上仍未得到验证.
研究的目的:
- 调查以前刺激史对决策不确定性的影响.
- 测试从边界更新模型得出的预测,即当前的选择与最近的刺激历史保持一致时,决策不确定性会增加.
主要方法:
- 从边界更新模型中推导出关于决策不确定性和刺激历史一致性的预测.
- 使用行为,生理和神经测量决定不确定性的经验验证验证.
主要成果:
- 证实了预测,决策不确定性随着当前选择和近期刺激历史之间更大的一致性而增加.
- 在之前的刺激史,选择偏见和决策不确定性之间展示了并发关系.
结论:
- 边界更新为刺激历史如何影响选择偏差和决策不确定性提供了统一的解释.
- 这项研究阐明了决策的关键机制,将过去的经验与现在的选择和信心水平联系起来.
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