左叶发作对皮层电活动的持久和广泛的后果
Mathieu Dhoisne1, Nacim Betrouni2, Sophie Hennion1
1Department of Clinical Neurophysiology, Lille University Hospital, Lille 59037, France; INSERM U1172, LilNCog - Lille Neuroscience & Cognition, Lille 59000, France.
NeuroImage
|December 20, 2024
概括
左侧叶发作会导致持续的皮质失调,影响大脑网络. 在 mesial temporal lobe epilepsy (mTLE) 中,这种后状态可能与认知问题和进展有关.
科学领域:
- 神经科学是一个神经科学.
- 发病学 (Epileptology) 是一个专业的学科.
- 网络科学 网络科学
背景情况:
- 焦点性会破坏大脑网络,会导致区域和全球连接的变化.
- 之前的研究重点是间歇性影响;关于后的直接后果的数据有限.
- 脑叶发作被假设是诱导持久的皮质失调.
研究的目的:
- 为了评估 mesial 叶发作对皮质活动的影响.
- 为了研究发作的横向性如何影响后皮层变化.
- 为了评估经过 mesial 叶发作后持续的皮质失调.
主要方法:
- 高分辨率EEG的回顾性分析在叶 (mTLE) 患者.
- 间歇性与晚期后歇性期间的光谱功率的比较,按发作发作侧面分层.
- 应用基于网络的统计数据来评估源级的功能连接变化.
主要成果:
- 左侧mTLE发作显示,发作后在左側前部区域增加了delta和降低了alpha波段功率.
- 观察到阿尔法带连接强度的下降,涉及左半球远程连接.
- 确定了涉及半球间连接的泰达频段连接强度的下降.
- 在右侧mTLE患者中没有发现显著的后变化.
结论:
- 左侧叶发作与持续的,广泛的皮质组织障碍有关.
- 在左侧mTLE中, postictal状态可能涉及到长期的功能脱差.
- 这种无组织可能会导致认知障碍和的进展.
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