在快速选择决策中,哪些机制调解了先前概率效应?
Rohan Puri1, Mark R Hinder1, Andrew Heathcote2,3
1Sensorimotor Neuroscience and Ageing Research Group, School of Psychological Sciences, College of Health and Medicine, University of Tasmania, Hobart, Australia.
预先概率通过影响反应值和非决策时间来影响快速决策,从而挑战认知模型中选择性值效应的假设. 这影响了我们如何理解选择任务中的证据积累.
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.
- 决策科学 决策科学 决策科学
背景情况:
- 快速决策受反应替代品的先前概率的影响.
- 传统模型假设先前的概率效应有选择性地影响响应值.
研究的目的:
- 调查先验概率对决策过程的影响,超出了公正响应值.
- 检查对证据积累率和非决策时间的影响.
- 为了比较年轻人和老年人的这些影响.
主要方法:
- 一个选择响应时间任务,操作了先前的概率 (区块智能和试验智能偏差).
- 参与者包括健康的年轻人 (n=21) 和老年人 (n=20).
- 使用赛车扩散证据积累模型分析数据.
主要成果:
- 不一致的试验的响应时间比一致的试验慢.
- 年长的成年人比年轻的成年人慢,但更准确.
- 证据积累建模表明先前的概率影响了响应值和非决策时间.
结论:
- 快速选择任务中的先前概率效应影响了响应值和非决策时间.
- 在赛车扩散模型中对选择性值影响的假设受到质疑.
- 研究结果表明,事先概率对决策过程中的认知处理有更广泛的影响.
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