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.
|Original language||English (US)|
|Number of pages||3|
|Journal||Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings|
|State||Published - Dec 1 1998|
|Event||Proceedings of the 1998 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 4 (of 6) - Hong Kong, China|
Duration: Oct 29 1998 → Nov 1 1998