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https://hdl.handle.net/2440/452
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Type: | Journal article |
Title: | Numerical model of electrical potential within the human head |
Author: | Nixon, J. Rasser, P. Teubner, M. Clark, C. Bottema, M. |
Citation: | International Journal for Numerical Methods in Engineering, 2003; 56(15):2353-2366 |
Publisher: | John Wiley & Sons Ltd |
Issue Date: | 2003 |
ISSN: | 0029-5981 1097-0207 |
Statement of Responsibility: | J. B. Nixon, P. E. Rasser, M. D. Teubner, C. R. Clark and M. J. Bottema |
Abstract: | <jats:title>Abstract</jats:title><jats:p>A realistic subject‐specific human head model was constructed based on structural magnetic resonance imaging (sMRI) data. Electrical conductivities were assigned inhomogeneously according to tissue type and variability within each head segment. A three‐dimensional (3D) finite‐difference method (FDM) was used to compute the evolution of the electrical potential from a single electrical dipole within the brain. The Douglas–Rachford FDM and three versions of iterative FDM were tested on a three‐layer concentric sphere model. The successive over‐relaxation (SOR) iterative method showed the best convergence properties and hence was used to compute the electrical potential within a realistic head model. The effect of using inhomogeneous rather than homogeneous conductivities within head segments of this model was shown to be important. Copyright © 2003 John Wiley & Sons, Ltd.</jats:p> |
Keywords: | finite-difference method human head numerical modelling three-dimensional |
Description: | The definitive version may be found at www.wiley.com |
Rights: | Copyright © 2003 John Wiley & Sons, Ltd. |
DOI: | 10.1002/nme.649 |
Published version: | http://dx.doi.org/10.1002/nme.649 |
Appears in Collections: | Applied Mathematics publications Aurora harvest |
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