将强化学习,工作记忆和选择动态与年龄以及青少年焦虑和抑郁症的症状联系起来
Erik R Frogner1, Andreas Dahl1, Rikka Kjelkenes1
1Department of Psychology, University of Oslo, Oslo, Norway; Center for Precision Psychiatry, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway.
青少年的认知发展显示了与年龄相关的学习和决策的改善. 在这项研究中,基于焦虑或抑郁症状,工作记忆和强化学习的动态并不显著不同.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 发展心理学 发展心理学
背景情况:
- 青春期是神经认知发育的关键时期,影响学习和决策.
- 工作记忆和强化学习对于适应至关重要,但可能会受到焦虑和抑郁的影响.
研究的目的:
- 研究青少年工作记忆,强化学习,年龄和焦虑/抑郁症状之间的关联.
- 使用认知计算方法来模拟仪器学习行为.
主要方法:
- 193名青少年 (12-24岁) 完成了强化学习工作记忆 (RLWM) 任务.
- 一个计算模型 (RLWM-LBA) 量化了工作记忆,强化学习和选择动态.
- 贝叶斯回归模型分析了参数,年龄和症状得分之间的关联.
主要成果:
- 随着年龄的增长,任务性能有所改善,基于症状水平没有显著差异.
- 强有力的证据表明,选择随机性的年龄相关变化 (LBA起点变化).
- 事和中度证据表明RLWM-LBA参数与症状得分之间没有关联;预测模型表现不佳.
结论:
- 与年龄相关的仪器学习改进与选择动态的变化有关.
- 在临床研究中观察到的认知差异并没有在这个一般青少年群体中概括到症状变化.
- 在这个样本中,工作记忆和强化学习参数无法有效预测年龄或症状负担.
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