Title :
Spline generated Laplacians of evoked potentials
Author :
Law, Samuel K. ; Nunez, Paul ; Nelson, Arden V. ; Pilgreen, Kenneth L.
Author_Institution :
Dept. of Biomed. Eng., Tulane Univ., New Orleans, LA, USA
Abstract :
The use of spline-generated Laplacians was investigated for several types of evoked potentials. Potentials were recorded from several subjects and spline-fitted to a sphere generated, using nonlinear regression techniques, from digitized head coordinate values. This preliminary study confirms that the topological maps of the surface Laplacian are much better in defining surface differences than potential maps
Keywords :
bioelectric potentials; splines (mathematics); digitized head coordinate values; evoked potentials; nonlinear regression techniques; sphere; spline-generated Laplacians; topological maps; Acceleration; Biomedical engineering; Brain; Computer displays; Electroencephalography; Laplace equations; Magnetic heads; Scalp; Spline; Surface topography;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.96441
