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The Importance of the Numerical Resolution of the Laplace Equation in the optimization of a Neuronal Stimulation Technique
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| For the past few years, the potential of transcranial direct current stimulation (tDCS) for the treatment of several pathologies has been investigated. Knowledge of the current density distribution is an important factor in optimizing such applications of tDCS. For this goal, we used the finite element method to solve the Laplace equation in a spherical head model in order to investigate the three dimensional distribution of the current density and the variation of its intensity with depth using different electrodes montages: the traditional one with two sponge electrodes and new electrode montages: with sponge and EEG electrodes and with EEG electrodes varying the numbers of electrodes. The simulation results confirm the effectiveness of the mixed system which may allow the use of tDCS and EEG recording concomitantly and may help to optimize this neuronal stimulation technique. The numerical results were used in a promising application of tDCS in epilepsy. | 263.57 KB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
For the past few years, the potential of transcranial direct current stimulation (tDCS) for the treatment of several pathologies has been investigated. Knowledge of the current density distribution is an important factor in optimizing such applications of tDCS. For this goal, we used the finite element method to solve the Laplace equation in a spherical head model in order to investigate the three dimensional distribution of the current density and the variation of its intensity with depth using different electrodes montages: the traditional one with two sponge electrodes and new electrode montages: with sponge and EEG electrodes and with EEG electrodes varying the numbers of electrodes. The simulation results confirm the effectiveness of the mixed system which may allow the use of tDCS and EEG recording concomitantly and may help to optimize this neuronal stimulation technique. The numerical results were used in a promising application of tDCS in epilepsy.
Description
Conference name - International Conference on Numerical Analysis and Applied Mathematics 2010, ICNAAM-2010; Conference date - 19 September 2010 - 25 September 2010
Fonte: https://www.researchgate.net/figure/Comparison-of-the-focality-between-M1-and-M2-The-figures-show-the-area-in-the-brain_fig1_241325865
Fonte: https://www.researchgate.net/figure/Comparison-of-the-focality-between-M1-and-M2-The-figures-show-the-area-in-the-brain_fig1_241325865
Keywords
Finite Element Method Laplace Equation Electric Stimulation
Pedagogical Context
Citation
Paula Faria; The Importance of the Numerical Resolution of the Laplace Equation in the optimization of a Neuronal Stimulation Technique. AIP Conf. Proc. 30 September 2010; 1281 (1): 1199–1202. https://doi.org/10.1063/1.3497884.
Publisher
American Institute of Physics
CC License
Without CC licence