Functional cortical source imaging from simultaneously recorded ERP and fMRI
Functional cortical source imaging from simultaneously recorded ERP and fMRI
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DOI：
10.1016/j.jneumeth.2006.03.015
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发表时间：
2006-10-15
影响因子：
3
通讯作者：
He, Bin
中科院分区：
文献类型：
--
作者：
Im, Chang-Hwan;Liu, Zhongming;He, Bin
通过受试者工作特征（ROC）曲线分析，定量比较皮质源图像，评估功能磁共振成像（fMRI）连续和同时记录视觉诱发电位（VEPs）的可行性。平均EEG源图像与同时获得的fMRI激活吻合良好。在扫描仪内外记录的vep皮层源图像之间发现了很强的相关性。fMRI先验信息的应用增强了估计源图像之间的相关性，使估计源图像具有更高的空间分辨率。本研究结果表明，在fMRI同时扫描过程中，可以获得可靠的皮质源图像，并可用于多模态功能源成像研究。(c) 2006 Elsevier B.V.版权所有
Feasibility of continuously and simultaneously recording visual evoked potentials (VEPs) with fMRI was assessed by quantitatively comparing cortical source images by means of receiver operating characteristic (ROC) curve analysis. The averaged EEG source images coincided well with simultaneously acquired fMRI activations. Strong correlation was found between the cortical source images of VEPs recorded inside and outside the scanner. Application of fMRI prior information strengthened correlation between estimated source images as well as resulted in source estimates with higher spatial resolution. The present results demonstrate that reliable cortical source images can be acquired during simultaneous fMRI scanning and they may be used for multimodal functional source imaging studies. (c) 2006 Elsevier B.V. All rights reserved.