在青少年的跨诊断样本中共享多变量大脑行为关系
Johannah Bashford-Largo1, Hajer Nakua2, R James R Blair3
1Boys Town National Research Hospital, Boys Town, Nebraska; Center for Brain, Biology, and Behavior, University of Nebraska-Lincoln, Lincoln, Nebraska.
Biological psychiatry. Cognitive neuroscience and neuroimaging
|August 12, 2023
概括
精神病理症状较少的青少年在整个大脑中显示出较大的灰质体积 (GMV). 这种域-一般大脑-行为联系表明了青少年心理健康的共同神经基础.
科学领域:
- 神经科学是一个神经科学.
- 发展心理学 发展心理学
- 精神病学是一个精神病学.
背景情况:
- 在童年时期内化和外化精神病理会影响儿童的功能和生活质量.
- 改变的大脑结构与增加的精神病理症状有关.
- 多变量分析可以揭示大脑区域和精神病理学之间的协变模式.
研究的目的:
- 检查青少年灰质体积 (GMV) 和精神病理症状之间的关系.
- 通过使用部分最小平方相关性来识别GMV和特定困难域之间的多变量线性关系.
主要方法:
- 分析了490名精神病诊断的青少年的结构性MRI数据.
- 用Desikan-Killiany地图集将皮层和皮层下体积分为部分.
- 重新采样技术 (变换,引导,分半) 评估了重要性,稳定性和可重复性.
主要成果:
- 一个显著,稳定和可重复的维度将所有领域的较低的精神病理学分数 (较少的损伤) 与更广泛的GMV联系在一起.
- 这个维度占共变量的87.1%.
- 较低的行为问题特别与前部区域的更高的GMV有关.
结论:
- 在这个跨诊断样本中,最重要的大脑行为关系是域一般的,将较低的精神病理症状与更大的全球GMV联系起来.
- 这表明青少年之间有共同的大脑行为关系,无论临床精神病理学如何.
- 这些发现突显出一种潜在的常见神经相关因子,对年轻人的精神健康产生影响.
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