结论：脑电信号相位相干性指数随时间的变化与事件相关去同步和事件相关同步现象相一致。
CONCLUSION: The mean phase coherence of EEG changed with time is coincident with event-related desynchronization and event-related synchronization.
目的研究视觉空间记忆和抽象几何图形记忆的工作记忆负荷对脑电事件相关同步化和去同步化的影响。
Objective To examine the effect of visual working memory load on the event related EEG synchronization and desynchronization.
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