大型抑郁症的数据驱动认知亚型:左状回环和小脑灰质缩
Yuanmei Tao1, Yushun Yan1, Min Wang1
1Mental Health Center and Institute of Psychiatry, West China Hospital, Sichuan University, 610041 Chengdu, China.
Journal of affective disorders
|August 16, 2025
概括
重度抑郁症 (MDD) 患者被分为认知缺陷和保存亚型. 认知缺陷亚型在左状回环和小脑中显示出较大的灰质缩,这表明了潜在的生物标志物.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 机器学习 机器学习
背景情况:
- 大型抑郁症 (MDD) 是异质的.
- 识别不同的MDD亚型对于向治疗至关重要.
- 认知配置文件为亚型分类提供了一个有希望的途径.
研究的目的:
- 使用机器学习将MDD患者分为同质的认知亚型.
- 用多式神经成像来识别这些MDD亚型特有的神经特征.
主要方法:
- 将半监督机器学习 (HYDRA) 应用于147名MDD患者和222名健康对照者的认知数据.
- 使用了剑桥神经心理测试自动化电池 (CANTAB) 和磁共振成像 (MRI).
- 使用通用线性模型 (GLMs) 和基于voxel的形态测量 (VBM) 进行神经成像分析.
主要成果:
- 患有MDD的患者被分为认知缺陷 (CD,N=75) 和认知维护 (CP,N=72) 亚型.
- 与HC患者相比,VBM揭示了MDD患者左状回环和小脑灰质体积 (GMV) 的减少.
- 患有CD的患者在这些区域的缩比CP患者更大;在MDD亚型和HC中观察到叶ALFF下降,没有亚型之间的差异.
结论:
- 一种具有综合认知缺陷的MDD亚型与左状回环和小脑的结构性缩有关.
- 这些缩区域可以作为MDD的认知缺陷亚型的潜在生物标志物.
- 两种认知亚型之间没有发现低频波动 (ALFF) 幅度的显著差异.
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