Functional brain imaging based on ERD/ERS
Functional brain imaging based on ERD/ERS
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DOI：
10.1016/s0042-6989(00)00235-2
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发表时间：
2001-01-01
期刊：
影响因子：
1.8
通讯作者：
Pfurtscheller, G
中科院分区：
文献类型：
--
作者：
Pfurtscheller, G
感觉、认知和运动加工可以导致正在进行的EEG以事件相关去同步化（ERD）或事件相关同步化（ERS）的形式改变。这两种现象都是时间锁定的，但不是相位锁定的事件，他们是高频段特定的。ERD被解释为兴奋性增加的激活皮质区的相关性，并且至少在某些情况下，α和较低β带中的ERS可以被解释为失活皮质区的相关性。ERD/ERS的空间映射可用于研究皮层激活模式的动力学。从运动任务的例子报告。(C)2001爱思唯尔科技有限公司版权所有。
Sensory, cognitive and motor processing can result in changes of the ongoing EEG in form of an event-related desynchronization (ERD) or event-related synchronization (ERS). Both phenomena are time-locked but not phase-locked to the event and they are highly frequency-band specific. The ERD is interpreted as a correlate of an activated cortical area with increased excitability and the ERS in the alpha and lower beta bands can be interpreted, at least under certain circumstances, as a correlate of a deactivated cortical area. Spatial mapping of ERD/ERS can be used to study the dynamics of cortical activation patterns. Examples from a movement task are reported. (C) 2001 Elsevier Science Ltd. All rights reserved.