A new realistic geometry spline Laplacian algorithm and its application to VEP

Author

Zhao, Feng ; Wu, Dalei ; Krumick, G. ; Li, Yuhua ; Wu, Dalei ; He, Benteng

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Illinois Univ., Chicago, IL, USA

Volume

4

fYear

1998

fDate

29 Oct-1 Nov 1998

Firstpage

2183

Abstract

We have developed a new algorithm to estimate the surface Laplacian of the scalp potential on a realistic geometry scalp surface. The performance of the algorithm was evaluated by computer simulations. The algorithm was applied to study the scalp Laplacian maps of visual evoked potentials induced by pattern onset stimuli in a human subject. The present results indicate the excellent performance of the newly developed algorithm and its potential for application in imaging brain electrical activity

Keywords

Laplace transforms; digital simulation; electroencephalography; medical signal processing; visual evoked potentials; brain electrical activity; computer simulations; human subject; imaging; pattern onset stimuli; realistic geometry scalp surface; realistic geometry spline Laplacian algorithm; scalp Laplacian maps; scalp potential; surface Laplacian; visual evoked potentials; Brain modeling; Computer simulation; Electrodes; Electroencephalography; Geometry; Helium; Humans; Laplace equations; Scalp; Spline;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE

Conference_Location

Hong Kong

ISSN

1094-687X

Print_ISBN

0-7803-5164-9

Type

conf

DOI

10.1109/IEMBS.1998.747043

Filename

747043