边缘参与系数揭示了新生儿功能连接体的发育动态
Tianyu Fang1,2,3,4, Rong Wang1,2,3,4, Weijin Liu1,2,3,4
1Medical School, Faculty of Medicine, Tianjin University, Tianjin, China.
Communications biology
|October 14, 2025
概括
与满期婴儿相比,早产婴儿表现出延迟的大脑网络专业化,由更高的边缘参与系数表明. 功能性大脑连接的这些差异与认知结果有关,可能涉及特定的神经发育基因.
科学领域:
- 神经科学是一个神经科学.
- 发展生物学 发展生物学
- 医疗成像医学成像
背景情况:
- 早期的大脑发育对于认知功能至关重要.
- 对大脑连接的传统分析可能会错过动态变化.
- 了解婴儿大脑成熟需要先进的分析方法.
研究的目的:
- 引入和应用一个以边缘为中心的度量来量化婴儿大脑中的功能整合.
- 为了研究早产婴儿和早产婴儿之间大脑网络专业化的差异.
- 探索区域间连接的发展轨迹及其与认知结果的关系.
主要方法:
- 利用来自"人类结合体发展项目"的大型新生儿功能性MRI数据集 (n=781).
- 引入了一个以边缘为中心的度量,边缘参与系数,以测量跨模块的功能集成.
- 分析基因表达数据以确定潜在的分子支柱.
主要成果:
- 过早出生的婴儿表现出比满期婴儿更高的边缘参与系数,表明网络专业化延迟.
- 网络之间的连接,特别是涉及视觉和高级系统,显示出显著的发展变化.
- 这些连接性变化与18个月龄的认知结果有关.
结论:
- 过早出生与早期大脑功能连接和推迟网络专业化的改变模式有关.
- 区域间大脑连接的发育变化与以后的认知能力有关.
- 参与神经发育和细胞信号传递的特定基因可能会影响这些早期连接模式.
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