高风险反应缓慢,但没有帮助克服人类的帕夫洛夫偏见
Johannes Algermissen1,2, Hanneke E M den Ouden1
1Radboud University, Donders Institute for Brain, Cognition, and Behaviour, 6525 GD Nijmegen, The Netherlands johannes.algermissen@donders.ru.nl hanneke.denouden@donders.ru.nl.
Learning & memory (Cold Spring Harbor, N.Y.)
|September 16, 2024
概括
高风险会减缓反应,但不会改变帕夫洛夫的偏见. 这种减速可能反映了人类的认知控制或目标导向和消费行为之间的干扰.
科学领域:
- 认知神经科学 认知神经科学
- 行为经济学是一种行为经济学.
背景情况:
- 帕夫洛夫 (动机) 偏见描述了结果价值如何影响行动活力.
- 风险大小对这些偏见的影响仍未得到充分研究.
研究的目的:
- 为了检查股权大小如何调节帕夫洛夫偏见.
- 为了确定更高的风险是否会加强偏见或增强认知控制.
主要方法:
- 一个预先注册的研究,55名参与者.
- 与高与低风险操纵的正对齐的激励性Go/NoGo任务.
- 应用了强化学习漂移-扩散模型 (RL-DDM).
主要成果:
- 高风险显著减缓了响应时间,特别是在动机不一致的条件下.
- 子的大小没有影响响应启动或帕夫洛夫偏差的大小.
- RL-DDM表明,高风险延长了非决策时间,但没有改变响应值.
结论:
- 高风险减缓响应而不影响帕夫洛夫偏见表达.
- 反应减缓可能源于强化,但无效的认知控制或有条件的抑制.
- 帕夫洛夫偏见和高风险减速可能独立运行.
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