Model and Simulation of the Brain Scalp Potential Analysis

Abstract:

Based on spherical head models, this paper, by employing the finite element method (FEM), analyzes the potential distribution of the brain scalp surface and attempts to work out the electroencephalography (EEG) forward problem, in hope of finding out the impact the dipole parameters has on it. According to the electromagnetism theory, this paper discusses the general resolution of EEG, it requires electric potentials of the globe's surface, and graphically displays results of computation through finite element post-processing, which tests their effectiveness. Furthermore, it analyzes the influences of dipole parameters on the potential distribution of scalp surface, such as position, direction and strength, which attempts to provide an effective method to solve EEG forward problem, based on diversified head model, and also proposes a prior information to the solution to EEG inverse problem.

• Periodical: Applied Mechanics and Materials (Volumes 198-199)
• Pages: 942-947
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.198-199.942
• Online since: September 2012
• Authors: Xiang Li Wang, Shi Mei Su, Zhi Gang Shang
• Keywords: Dipole, EEG, Finite Element Method (FEM), Forward Problem

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