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强化学习和工作记忆系统的双重过程障碍是生理焦虑的学习缺陷的基础
Jennifer D Senta1, Sonia J Bishop1,2,3, Anne G E Collins1,4
1Helen Wills Neuroscience Institute, University of California, Berkeley, California, United States of America.
PLoS computational biology
|September 26, 2025
概括
高度的生理焦虑会影响学习和记忆,降低学习速度并增加工作记忆衰退. 在焦虑中,这种双重过程学习缺陷凸显了与强化学习一起模拟工作记忆的必要性.
科学领域:
- 认知神经科学 认知神经科学
- 计算精神病学是一种计算精神病学.
- 情感神经科学是一种神经科学.
背景情况:
- 焦虑与执行功能缺陷有关,包括工作记忆 (WM) 和注意力.
- 虽然焦虑会影响学习,但对焦虑的强化学习 (RL) 研究显示出不同的结果.
- WM影响学习和调节RL,但在焦虑RL研究中经常被遗漏.
研究的目的:
- 研究生理和认知焦虑如何影响学习和记忆.
- 确定焦虑是否通过RL或WM缺陷影响表现.
- 模拟交互式RL和WM过程,以了解焦虑的学习障碍.
主要方法:
- 使用了强化学习和工作记忆 (RLWM) 任务,设置大小不同.
- 采用了整合RL和WM流程的计算模型.
- 评估生理和认知焦虑的个体差异.
主要成果:
- 过高的生理焦虑与较差的学习和记忆能力相关.
- 较高的生理焦虑与RL学习率降低和WM衰退增加有关.
- 只有RL的模型错误地将与焦虑相关的学习缺陷归因于噪音,强调了WM的作用.
结论:
- 焦虑,特别是生理焦虑,通过双重RL和WM缺陷损害学习.
- 工作记忆模型对于准确评估心理病理学中的RL障碍至关重要.
- 研究结果表明,一种与不同学习障碍相关的生理焦虑表型.
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