多变量模式将大脑微观结构与青少年饮食障碍的气质和行为联系起来
Carolina Makowski1,2, Golia Shafiei3, Megan Martinho4
1Center for Multimodal Imaging and Genetics, University of California San Diego, La Jolla, California, USA.
medRxiv : the preprint server for health sciences
|December 9, 2024
概括
神经成像揭示了饮食障碍 (EDs) 中不同的大脑行为模式. 一个个个个个个的.
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.
- 医疗成像医学成像
背景情况:
- 饮食障碍 (ED) 在行为,特征和认知方面表现出显著的异质性,使神经生物学研究复杂化.
- 以前的神经成像研究通常集中在有限的脑区或特定的ED症状上,可能缺少更广泛的脑行为关系.
研究的目的:
- 利用多变量方法绘制整个大脑的微观结构和形态测量模式,用于青少年ED患者的各种行为领域.
- 通过使用先进的成像分析,识别ED症状和行为的神经生物学相关性.
主要方法:
- 在91名青少年ED患者和48名健康对照中分析了扩散权重成像与限制光谱成像.
- 在65个感兴趣的区域应用了部分最小方程分析来绘制38个行为测量对白质通道和皮层下结构扩散的行为测量图.
主要成果:
- 一个显著的潜在变量解释了大脑微观结构和行为之间的协同变量的46.9%.
- 一个"控制不足"的行为特征 (情绪失调,寻找新奇事物,低精力控制/截取意识) 与前额,边缘和乳头白质道的限制扩散相关.
- 与具有限制性ED症状的患者相比,患有过度清洗ED症状的患者在这个大脑行为特征的得分更高.
结论:
- 多变量建模有效地捕捉了饮食障碍中复杂的大脑行为关系.
- 这些发现支持一种基于神经生物学的模型,用于潜在的临床亚型和预测EDs.
- 这项研究强调了特定白质变化与ED患者"控制不足"的行为特征之间的联系.
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