Functional brain imaging based on ERD/ERS

被引：392

作者：

Pfurtscheller, G

机构：

[1] Graz Univ Technol, Inst Biomed Engn, Dept Med Informat, A-8010 Graz, Austria

[2] Graz Univ Technol, Ludwig Boltzmann Inst Med Informat & Neuroinforma, A-8010 Graz, Austria

来源：

VISION RESEARCH | 2001年 / 41卷 / 10-11期

关键词：

event-related desynchronization (ERD); event-related synchronization (ERS); sensorimotor function; voluntary movement; brain oscillations;

D O I：

10.1016/S0042-6989(00)00235-2

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

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.

引用

页码：1257 / 1260

页数：4

共 16 条

[1] The Berger rhythm potential changes from the occipital lobes in man [J].