认知灵活性下降和右半球的EEGα频段功能连接性重组在降落者中重复的间接大脑冲击后
Zhenghao Fu1, Kai Hu2, Shukai Wu3
1Department of Neurosurgery, Guangdong Sanjiu Brain Hospital, 578 Shatai South Road, Guangzhou 510510, China; Department of Neurosurgery, General Hospital of Central Theater Command, 627 Wuluo Road, Wuhan 430070, China.
Brain research bulletin
|July 30, 2025
概括
重复间接大脑影响 (RIBI) 负面影响认知灵活性,导致精度下降和大脑活动模式改变. 这项研究揭示了RIBI暴露后大脑中独特的适应性重组.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 运动科学 运动科学 运动科学
背景情况:
- 重复间接大脑冲击 (RIBI) 在跳等活动中很常见.
- RIBI的长期认知影响,特别是对灵活性的影响,仍未得到充分研究.
- 了解这些影响背后的神经机制对于伤害预防和康复至关重要.
研究的目的:
- 研究认知灵活性和RIBI之间的关系.
- 通过功能连接性分析,探索RIBI后认知灵活性变化背后的电生理机制.
- 为了比较RIBI和健康对照个体之间的大脑活动和认知表现.
主要方法:
- 用功能连接分析来研究大脑活动.
- 42名男性降落运动员与RIBI和40名健康对照 (HC) 参与了比赛.
- 参与者接受了行为评估和电生理学记录 (阿尔法带分析).
主要成果:
- 而RIBI组显示阿尔法带功率增加,行为准确性降低.
- 在RIBI组的重复和切换条件下,α频段功率与行为准确性有负相关.
- 在RIBI组中观察到右头顶部和后头部区域 (视觉注意力缺陷) 之间的α连贯性下降,以及前额部和头顶部区域 (补偿反应) 之间的连贯性增加.
结论:
- 累积的RIBI暴露导致认知灵活性下降.
- 改变的α功能连接性,特别是减少的围 - 头和增强的前 - 头连接性,反映了RIBI后的自适应性大脑重组.
- 这些发现凸显了RIBI对认知功能和神经适应的影响.
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