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严重抑郁症患者的社会学习受损,通过强化学习模型揭示了这种情况
Yuening Jin1,2, Qinglin Gao1,2, Yun Wang3
1CAS Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China.
International journal of clinical and health psychology : IJCHP
|October 13, 2023
概括
患有严重抑郁症 (MDD) 患者在社交互动过程中表现出较高的学习率,特别是当不了解合作伙伴声誉时. 这表明改变的社会学习有助于MDD,影响信任和康复策略.
科学领域:
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
- 计算精神病学是一种计算精神病学.
背景情况:
- 大型抑郁症 (MDD) 与非社会环境中的奖励和损失学习发生变化有关.
- 在MDD中,社会学习缺陷仍然不明,特别是在实时社交互动中.
研究的目的:
- 用强化学习模型研究MDD患者的社会学习.
- 检查MDD如何影响在重复的信任游戏 (rTG) 中学习信任新伙伴.
主要方法:
- 68名MDD患者和54名对照人作为投资者与10名合作伙伴一起参加了RTG.
- 可信度和声誉披露 (预先披露与隐藏) 被操纵.
- 强化学习模型分析了学习率的收益和损失.
主要成果:
- 与对照组相比,MDD患者的损失学习率显著更高.
- 当合作伙伴声誉未披露时,这种差异更为明显.
- 两组之间没有观察到学习成长率的显著差异.
结论:
- 对损失的异常学习是MDD中社会学习的关键特征.
- 情境的不可预测性 (缺乏声誉) 加剧了这种学习损失异常.
- 研究结果为开发MDD的社会康复策略提供了洞察力.
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