自我节奏运动过程中皮层电图数据中β去同步化和γ同步化的时空模式。
Spatiotemporal patterns of beta desynchronization and gamma synchronization in corticographic data during self-paced movement.
作者信息
Pfurtscheller G, Graimann B, Huggins J E, Levine S P, Schuh L A
机构信息
Department of Medical Informatics, Institute of Biomedical Engineering, University of Technology Graz, Inffeldgasse 16a/II, A-8010 Graz, Austria.
出版信息
Clin Neurophysiol. 2003 Jul;114(7):1226-36. doi: 10.1016/s1388-2457(03)00067-1.
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.
目的
研究在电极间距紧密的皮层脑电图（ECoG）数据中事件相关去同步化（ERD）和事件相关同步化（ERS）的时空模式。
方法
4例癫痫患者进行自主手部运动。对ERD/ERS进行量化并以时频图的形式显示。
结果
在所有受试者中，均发现了伴有嵌入式γ波ERS的显著β波ERD。
结论
自主运动不仅伴随着相对广泛的μ波和β波ERD，还伴随着60 - 90赫兹频段更集中的γ波ERS。
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