α波段的诱发振荡：功能意义。

Induced oscillations in the alpha band: functional meaning.

作者信息

Pfurtscheller G

机构信息

Department of Medical Informatics, Institute of Biomedical Engineering and Ludwig Boltzmann Institute for Medical Informatics and Neuroinformatics, Technical University Graz, Inffeldgasse 16a/II, A-8010 Graz, Switzerland.

出版信息

Epilepsia. 2003;44 Suppl 12:2-8. doi: 10.1111/j.0013-9580.2003.12001.x.

DOI:10.1111/j.0013-9580.2003.12001.x

PMID:14641556

Abstract

The phenomena of event-related desynchronization (ERD) and synchronization (ERS) reflect the dynamics of neural networks and can be observed on different scalp locations at the same moment of time. Whereas on one cortical area a focal 10-Hz ERD can be found, other areas can display a 10-Hz ERS. This phenomenon is called focal ERD/surround ERS and is interpreted as a correlate of an activated cortical area (ERD) and simultaneously deactivated or inhibited other areas. The induced oscillations (ERS) are dominant in the 10- to 13-Hz band and very likely mediated by thalamic gating.

摘要

事件相关去同步化（ERD）和同步化（ERS）现象反映了神经网络的动态变化，并且可以在同一时刻在不同头皮位置观察到。在一个皮质区域可能会发现局部10赫兹的ERD，而其他区域可能显示10赫兹的ERS。这种现象被称为局部ERD/周围ERS，被解释为激活的皮质区域（ERD）与同时失活或受抑制的其他区域的关联。诱发振荡（ERS）在10至13赫兹频段占主导，很可能由丘脑门控介导。