在那些有自杀念头的人中,在强化学习期间对逃跑的偏见作出反应
Miguel Blacutt1, Caitlin M O'Loughlin1, Brooke A Ammerman1
1Department of Psychology, University of Notre Dame, 18931 Moose Krause Cir, Notre Dame, IN, United States.
Journal of psychiatric research
|December 29, 2024
概括
具有自杀念头 (SI) 史的个人倾向于积极逃避负面情绪. 这种逃避偏差是SI的重要预测因素,即使考虑到冲动性.
科学领域:
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
- 行为科学 行为科学
背景情况:
- 自杀念头 (SI) 与奖励系统功能障碍和逃避负面情绪状态的驱动有关.
- 了解SI患者的决策偏见对于风险评估和干预至关重要.
研究的目的:
- 调查是否有史以来SI的个体表现出积极逃避厌恶刺激的偏见.
- 在SI历史中区分主动逃避和被动回避偏见.
主要方法:
- 设计了一项行为任务,参与者进行了积极的 (Go) 或被动的 (No-Go) 选择,以逃避或避免不愉快的状态.
- 一个漂移-扩散增强学习模型估计了活动逃脱和回避的潜在偏差.
- 贝叶斯逻辑回归分析了这些偏差与SI历史之间的关系,控制了负的紧迫性和缺乏预谋.
主要成果:
- 在具有SI史的个人中发现了积极逃离厌恶状态的显著偏差.
- 这种逃避偏差仍然是SI历史的重要预测因素,独立于冲动性方面,如负面紧迫性和缺乏预谋.
- 避免偏差没有显著预测SI历史.
结论:
- 具有SI史的个人表现出明显的决策偏见,有利于积极逃离负面情绪经历.
- 这种加剧的逃脱反应是SI风险的潜在生物标志物.
- 旨在调节这种逃避偏差的有针对性的干预措施可以为SI提供新的治疗策略.
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