Spatiotemporal patterns of beta desynchronization and gamma synchronization in corticographic data during self-paced movement
Spatiotemporal patterns of beta desynchronization and gamma synchronization in corticographic data during self-paced movement
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DOI：
10.1016/s1388-2457(03)00067-1
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发表时间：
2003-07-01
影响因子：
4.7
通讯作者：
Schuh, LA
中科院分区：
文献类型：
--
作者：
Pfurtscheller, G;Graimann, B;Schuh, LA
目的：研究近距离电极皮质电图（ECoG）数据中事件相关去同步（ERD）和事件相关同步（ERS）的时空模式。方法：4例癫痫患者进行自定节奏手部运动。ERD/ERS被量化并以时频图的形式显示。结果：在所有受试者中，发现了明显的β ERD和嵌入的γ ERD。结论：自定节奏运动不仅伴随着相对广泛的mu和β ERD，而且在60- 90hz频段也有更集中的gamma ERS。(C) 2003年国际临床神经生理学联合会。爱尔兰爱思唯尔科学有限公司出版。版权所有。
Objective: To study the spatiotemporal pattern of event-related desynchronization (ERD) and event-related synchronization (ERS) in electrocorticographic (ECoG) data with closely spaced electrodes.Methods: Four patients with epilepsy performed self-paced hand movements. The ERD/ERS was quantified and displayed in the form of time-frequency maps.Results: In all subjects, a significant beta ERD with embedded gamma ERS was found.Conclusions: Self-paced movement is accompanied not only by a relatively widespread mu and beta ERD, but also by a more focused gamma ERS in the 60-90 Hz frequency band. (C) 2003 International Federation of Clinical Neurophysiology. Published by Elsevier Science Ireland Ltd. All rights reserved.