|
|||||
|
|
Finite-element model of the human head: scalp potentials due to dipole sources |
|
| Authors: | Y. Yan P. L. Nunez R. T. Hart |
| Affiliation: | (1) School of Medicine, The George Washington University, 20052 Washington, DC, USA;(2) Department of Biomedical Engineering, Tulane University, 70018 New Orleans, LA, USA |
| Abstract: | Three-dimensional finite-element models provide a method to study the relationship between human scalp potentials and neural current sources inside the brain. A new formulation of dipole-like current sources is developed here. Finiteelement analyses based on this formulation are carried out for both a threeconcentric-spheres model and a human-head model. Differences in calculated scalp potentials between these two models are studied in the context of the forward and inverse problems in EEG. The effects of the eye orbit structure on surface potential distribution are also studied. |
| Keywords: | Concentric sphere model Dipole EEG Eye orbit Finite-element model Forward solution Grid density Internal current field |
| 本文献已被 SpringerLink 等数据库收录！ | |