在纵向研究中从基线皮质厚度预测发育规范
Philipp Seidel1,2, Tobias Kaufmann3,4,5, Thomas Wolfers3,4,6
1Department of Psychiatry and Psychotherapy, Tübingen Center for Mental Health, University of Tübingen, Tübingen, Germany. philipp.seidel@med.uni-tuebingen.de.
Biology of sex differences
|February 10, 2026
概括
新的基线条件规范 (B-规范) 更准确地追踪青少年的大脑厚度随时间变化. 这些先进的规范模型比传统的横截面规范 (C-Norms) 更好地进行预测,特别是在检测青春期大脑发育时.
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
- 计算精神病学是一种计算精神病学.
背景情况:
- 规范性建模对于理解大脑发育中的个体差异至关重要,使用皮层厚度等指标来衡量.
- 现有的模型主要使用横截面数据,限制它们捕捉纵向大脑变化的能力.
- 纵向数据虽然更具信息性,但其获取具有挑战性和成本高.
研究的目的:
- 开发和评估一种新的规范建模方法,即基线条件规范 (B-Norms),用于纵向大脑发育.
- 使用纵向数据,比较B-规范与传统的横截面规范 (C-规范) 的预测准确度.
- 评估B-Norms在检测发育变化的敏感性,特别是与青春期和性别差异相关的变化.
主要方法:
- 利用了青少年大脑认知发展 (ABCD) 研究的纵向脑成像数据,包括在基线,2年和4年后续的皮质厚度测量.
- 开发了特定于性别的B-Norms,根据基线厚度,基线年龄和随访年龄预测随访皮质厚度.
- 通过使用独立的测试集,比较B-Norms与基于性别的C-Norms,这些C-Norms仅仅基于年龄来预测厚度.
主要成果:
- 与几乎所有皮层区域的C-Norms相比,B-Norms显示出更高的预测准确度,并解释了皮层厚度的差异.
- B-Norms显示对发育过程的敏感性增强,确定了与C-Norms无法检测到的青春期变化相关的四个区域.
- 在2年和4年的随访时间点之间没有观察到模型性能的显著差异.
结论:
- 基线条件规范 (B-规范) 有效地捕捉了纵向结构性大脑变化的规范变化.
- 与传统的横截面方法相比,B-规范为研究发育轨迹提供了更好的准确性和灵敏性.
- B-规范代表了有价值的进步,并补充了神经科学中现有的规范建模技术.
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