生物节奏对依赖时间的功能性大脑网络中组成部分重要性层次的影响
Timo Bröhl1,2, Randi von Wrede1, Klaus Lehnertz1,2,3
1Department of Epileptology, University of Bonn Medical Center, Bonn, Germany.
Frontiers in network physiology
|September 14, 2023
概括
生物节奏显著影响来自脑电图 (EEG) 信号的脑网络. 研究结果显示,在清醒和睡眠期间,核心大脑子网络始终活跃,由昼夜和超昼夜节律塑造.
科学领域:
- 神经科学是一个神经科学.
- 时间生物学 时间生物学
- 网络科学 网络科学
背景情况:
- 生物节律,包括昼夜节律 (约. 24小时) 和超日 (<24小时) 周期,是生理过程的基础.
- 之前的研究广泛研究了这些节奏对电脑电图 (EEG) 光谱特征的影响.
- 生物节奏对由EEG衍生的功能性大脑网络发展的影响仍未得到充分研究.
研究的目的:
- 研究生物节奏如何影响功能性大脑网络的结构和动态.
- 在EEG衍生脑网络中识别时间变化的重要性层次和网络集成方面.
- 发现受昼夜和超昼夜节律影响的子网络.
主要方法:
- 对多日多通道EEG记录的分析.
- 从EEG数据中推导演变的功能性大脑网络.
- 应用中心性概念来评估网络顶点和边缘的重要性以及随着时间的推移的结构整合.
主要成果:
- 证明昼夜和超昼夜节律对功能性大脑网络属性的强烈影响.
- 在不断发展的大脑网络中确定了不同的子网络,这些子网络是由这些生物节奏调节的.
- 观察到一个始终重要和基本的子网络,涉及到在清醒和睡眠期间的大脑活动.
结论:
- 生物节奏在塑造功能性大脑网络的动态组织方面发挥着至关重要的作用.
- 鉴定到的基本子网络对于连续的大脑功能至关重要,不管睡眠-清醒周期如何.
- 这项研究推动了我们对生物定时和大脑网络架构之间的相互作用的理解.
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