Title :
Imaging brain electrical activity using a 3D realistically shaped inhomogeneous head model
Author :
He, Bin ; Wang, Yunhua ; Wu, Dongsheng
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Illinois Univ., Chicago, IL, USA
fDate :
30 Oct-2 Nov 1997
Abstract :
The authors have developed a new method to image brain electrical activity over the cortical surface from scalp-recorded EEGs. A boundary element model of the scalp, the skull, and the brain was used. The method links the cortical potential field to the scalp potential field in an inhomogeneous volume conductor head model by linear algebra. The authors have conducted computer simulation studies to test the feasibility of the developed method and validated its applicability to imaging cortical activity using flash stimulated VEPs in a human subject
Keywords :
biomedical imaging; boundary-elements methods; brain models; digital simulation; electroencephalography; physiological models; visual evoked potentials; 3D realistically shaped inhomogeneous head model; boundary element model; brain electrical activity imaging; computer simulation studies; cortical activity imaging; cortical surface; electrodiagnostics; flash stimulated VEPs; human subject; inhomogeneous volume conductor head model; linear algebra; scalp-recorded EEGs; skull; Brain modeling; Computer simulation; Conductors; Electroencephalography; Head; Linear algebra; Nonuniform electric fields; Scalp; Skull; Testing;
Conference_Titel :
Engineering in Medicine and Biology Society, 1997. Proceedings of the 19th Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-4262-3
DOI :
10.1109/IEMBS.1997.756564
