在不同的恒定平衡范式下,分析皮层-肌肉合和功能性大脑网络
1Institute of Intelligent Control and Robotics, Hangzhou Dianzi University, Hangzhou 310018, China.
Brain sciences
|January 22, 2024
概括
皮质肌肉合从β波段转移到马波段,增加了平衡困难. 大脑网络拓结构也发生了变化,揭示了站立平衡控制期间感觉运动系统的调整.
科学领域:
- 神经科学是一个神经科学.
- 人体生理学 人体生理学
- 生物力学 生物力学
背景情况:
- 保持平衡对于日常活动至关重要.
- 平衡的神经控制机制,特别是皮质肌肉相互作用,尚未完全理解.
研究的目的:
- 为了研究皮质肌肉合和功能性大脑网络如何随着平衡困难的增加而变化.
- 探索神经通路参与保持站立平衡.
主要方法:
- 使用了同时进行的脑电图 (EEG) 和肌电图 (EMG) 记录.
- 使用了四种不同难度的平衡范式.
- 分析了大小平方连贯性 (MSC) 和转移 (TE) 的EEG-EMG合.
- 图形理论分析了功能性大脑网络拓.
主要成果:
- 皮层-肌肉连贯性 (CMC) 随着平衡困难的增加,从β波段转移到马波段.
- 神经通路因果关系在β和马频段的下降通路中更强.
- 功能性大脑网络拓学适应不同的平衡需求.
结论:
- 感应运动系统积极适应不同的平衡挑战.
- 这些发现为站立平衡控制的生理机制提供了洞察力.
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