小脑功能网络拓学的与年龄相关的退化
Mingzhu Ye1,2, Haishuo Xia3, Tao Song1
1School of Psychology, Research Center for Exercise and Brain Science, Shanghai University of Sport, Shanghai, China.
GeroScience
|December 23, 2025
概括
衰老显著改变小脑网络拓,影响认知功能. 年长的成年人显示网络效率和模块化程度下降,女性比男性出现更明显的下降,突出显示小脑在认知控制中的作用.
科学领域:
- 神经科学是一个神经科学.
- 老年学是指老年学的学科.
- 网络科学 网络科学
背景情况:
- 全球人口正在衰老,使小脑在衰老中的作用成为一个关键的研究领域.
- 关于小脑衰老的现有研究主要集中在结构和功能变化上,使得拓性质受到研究不足.
研究的目的:
- 研究衰老对小脑功能网络的拓组织的影响.
- 探索小脑和认知功能中与年龄相关的拓变化之间的关系.
主要方法:
- 在年轻和老年人中分析小脑功能网络拓.
- 评估全球和本地网络的效率,模块化和小世界属性.
- 检查节点网络属性,包括中间中心性和节点效率.
- 在衰老过程中探索大脑小脑网络拓学的性别特异性差异.
主要成果:
- 老年人表现出全球和本地网络效率,模块化和小脑的小世界特性下降.
- 在老年人中观察到中间中心性 (视觉网络) 和节点效率 (视觉和横向体运动网络) 的减少.
- 在老年人中,默认模式网络和横向体力运动网络中,节点局部效率下降.
- 在老年人中,大脑小脑网络的马值和Stroop任务准确性之间发现了正相关性.
- 老龄化损害了全脑网络的效率,但保留了模块化和小世界特性,在小脑中选择性节点减少.
- 与男性相比,女性在衰老过程中大脑小脑网络拓学的恶化更为广泛.
结论:
- 衰老与小脑功能连接体的全球和区域拓学的重大破坏有关.
- 小脑网络的完整性对于保持认知控制至关重要,特别是在老年人中.
- 与男性相比,女性在小脑网络拓学的与年龄相关的恶化更为明显.
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