认知偏差修改训练对厌食症或抑郁症青少年身体形象不满的影响-试点可行性随机控制交叉研究
Eva Glombitza1,2, Piers L Cornelissen3, Martin J Tovée3
1Faculty of Medicine, Ruhr University Bochum, Bochum, Germany.
Frontiers in psychology
|October 13, 2025
概括
这项试点研究表明,认知偏差修改训练 (CBM) 可以改变精神性厌食症或抑郁症青少年的身体感知边界. 虽然对身体形象有效,但对于临床应用还需要进一步的研究.
科学领域:
- 精神病学是一个精神病学.
- 临床心理学 临床心理学
- 认知神经科学 认知神经科学
背景情况:
- 身体形象障碍是精神疾病的跨诊断因素.
- 使用两种替代强制选择 (2-AFC) 任务的认知偏差修改训练 (CBM) 旨在修改与体重相关的感知边界.
- 这是第一个在临床环境中评估CBM在青少年的可行性和有效性的试点研究.
研究的目的:
- 在青少年住院患者中评估2-AFC CBM范式的可行性和有效性.
- 研究CBM对被诊断患有神经性厌食症或抑郁症的青少年身体形象障碍和相关精神症状的影响.
主要方法:
- 一项试点研究涉及青少年住院患者 (13-17岁) 被诊断为神经性厌食症 (n=12) 或抑郁症 (n=17).
- 一个随机交叉试验设计,采用4天的干预 (纠正反) 和4天的控制 (确认反).
- 身体形象,抑郁症状和一般精神病理学的心理测量措施在基线,第15天和第29天被评估.
主要成果:
- 2-AFC CBM范式在10天内显著改变了患者对体重的个人感知界限.
- 在身体形象特定的心理测量措施中没有观察到显著的改善.
- 抑郁症组表现出抑郁症特异性症状的改善;对照条件影响了体重指数的感知,特别是在厌食症患者中.
结论:
- 2-AFC CBM范式在改变青少年住院患者的感知边界方面是可行的和有效的.
- 进一步的大规模随机对照试验是有必要的,以确认有效性.
- 建议包括完善对照条件,并可能专注于正常体重的神经性厌食症患者.
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