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Coupling of Point Collocation Meshfree Method and FEM for EEG Forward Solver

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Listed:
  • Chany Lee
  • Jong-Ho Choi
  • Ki-Young Jung
  • Hyun-Kyo Jung

Abstract

For solving electroencephalographic forward problem, coupled method of finite element method (FEM) and fast moving least square reproducing kernel method (FMLSRKM) which is a kind of meshfree method is proposed. Current source modeling for FEM is complicated, so source region is analyzed using meshfree method. First order of shape function is used for FEM and second order for FMLSRKM because FMLSRKM adopts point collocation scheme. Suggested method is tested using simple equation using 1‐, 2‐, and 3‐dimensional models, and error tendency according to node distance is studied. In addition, electroencephalographic forward problem is solved using spherical head model. Proposed hybrid method can produce well‐approximated solution.

Suggested Citation

  • Chany Lee & Jong-Ho Choi & Ki-Young Jung & Hyun-Kyo Jung, 2012. "Coupling of Point Collocation Meshfree Method and FEM for EEG Forward Solver," Journal of Applied Mathematics, John Wiley & Sons, vol. 2012(1).
    • Handle: RePEc:wly:jnljam:v:2012:y:2012:i:1:n:840593
    DOI: 10.1155/2012/840593
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    References listed on IDEAS

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    1. Nguyen, Vinh Phu & Rabczuk, Timon & Bordas, Stéphane & Duflot, Marc, 2008. "Meshless methods: A review and computer implementation aspects," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 79(3), pages 763-813.
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