基于个性化生物物理网络建模的皮质激发抑制比的青少年成熟
Amin Saberi1,2,3, Kevin J Wischnewski1,2,4, Kyesam Jung1,2
1Institute of Neuroscience and Medicine - Brain and Behaviour (INM-7), Research Centre Jülich, Jülich, Germany.
Science advances
|June 4, 2025
概括
青少年大脑发育显示出不断变化的兴奋抑制比率,这对皮质微电路至关重要. 这项研究揭示了协会区域的广泛减少以及使用新的体内标志物在感觉运动区域的明显模式.
科学领域:
- 神经科学是一个神经科学.
- 发育神经科学的发展神经科学.
- 计算神经科学是一种神经科学.
背景情况:
- 激发抑制比对皮质微电路功能至关重要,并且在整个生命周期中发生显著变化.
- 青春期是这个比率成熟的关键时期,尽管在人体体内的人体证据仍然有限.
- 以前的研究主要依赖于动物模型来理解这些发育变化.
研究的目的:
- 开发一个个性化的体内标记物,用于人类青少年的区域激发抑制比.
- 研究青少年人类大脑中激发抑制比的发育轨迹.
- 探索激发-抑制比率的变化和大脑分化的更广泛模式之间的关系.
主要方法:
- 利用生物物理网络模型的大规模模拟.
- 从横截面 (n=752) 和纵截面 (n=149) 青少年队伍的静止状态功能成像数据上安装模型.
- 开发了一个个性化的体内标记物来估计区域激发-抑制比率.
主要成果:
- 在青春期,在关联区域内观察到激发-抑制比率的广泛下降.
- 在感觉运动区域发现了增加或稳定的对比模式.
- 这种发育梯度与感觉运动关联差异化的多尺度标志物保持一致.
结论:
- 这项研究为青春期兴奋抑制比率的成熟提供了新的体内人类证据.
- 激发-抑制比的发育变化表现出不同的区域模式,区分传感运动和关联皮层.
- 建模中的方法选择可以影响研究结果,强调在未来的研究中需要仔细考虑.
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