Functional localization of brain sources using EEG and/or MEG data: volume conductor and source models

Functional localization of brain sources using EEG and/or MEG data: volume conductor and source models
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DOI:
10.1016/j.mri.2004.10.010
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发表时间:
2004-12-01
影响因子:
2.5
通讯作者:
da Silva, FL
da Silva, FL
中科院分区:
医学4区
文献类型:
--
作者:
da Silva, FL

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在这篇综述中,我们检查了脑电图和脑磁图的基本原理以及相应的源和体积导体模型。特别是,我们展示了偶极模型如何锚定在神经生理学的发现中,以及如何估计大脑及其周围组织的不同电导率。使用这些基本模型作为工具,我们展示了如何估计节律活动(α和mu节律和睡眠纺锤波)和癫痫样活动的神经源的功能定位,并将其与MRI获得的大脑结构数据相结合。(C) 2004爱思唯尔公司版权所有。
In this overview we examine the basic principles of properties of electroencephalogram and magnetoencephalogram and the corresponding models of sources and of the volume conductor. In particular we show how the dipolar model is anchored in neurophysiological findings and how the different conductivities of the brain and the tissue surrounding it can be estimated. Using these basic models as tools we show how the functional localization of the neural sources of rhythmic activities (alpha and mu rhythms and sleep spindles) and of epileptiform activities can be estimated and integrated with structural data of the brain obtained with MRI. (C) 2004 Elsevier Inc. All rights reserved.