Brunner Clemens, Graimann Bernhard, Huggins Jane E, Levine Simon P, Pfurtscheller Gert
Ludwig Boltzmann Institute of Medical Informatics and Neuroinformatics, Inffeldgasse 16a, 8010 Graz, Austria.
Neurosci Lett. 2005 Feb 28;375(2):69-74. doi: 10.1016/j.neulet.2004.11.052. Epub 2004 Dec 2.
Almost all brain-computer interfaces (BCIs) ignore information related to the phase coupling between electroencephalogram (EEG) or electrocorticogram (ECoG) recordings from different electrodes. This paper investigates whether additional information can be found when calculating the amount of synchronization between two electrode channels by using a phase locking measurement called the phase locking value (PLV). Special emphasis is put on the beta band (around 20 Hz) as well as the gamma band (high frequencies up to 95 Hz), which can only be used when subdural electrode recordings are available.
几乎所有的脑机接口(BCI)都忽略了与来自不同电极的脑电图(EEG)或皮质电图(ECoG)记录之间的相位耦合相关的信息。本文研究了通过使用一种称为锁相值(PLV)的锁相测量方法来计算两个电极通道之间的同步量时,是否能找到额外的信息。特别强调了β波段(约20Hz)以及γ波段(高达95Hz的高频),只有在有硬膜下电极记录时才能使用这两个波段。