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A Novel Array-Type Transcranial Direct Current Stimulation (tDCS) System for Accurate Focusing on Targeted Brain Areas

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5 Author(s)
Ji-Hye Park ; Dept. of Biomed. Eng., Hanyang Univ., Seoul, South Korea ; Seung Bong Hong ; Do-Won Kim ; Minah Suh
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In this paper, we propose a new array-type transcranial direct current stimulation (tDCS) system, which can modulate cortical excitability of human brain in a more effective manner. Once a target location inside a brain is determined, optimal injection current/potential at each electrode is calculated automatically by solving a constrained optimization problem. Current density distribution in a realistic head model was evaluated using the 3-D finite element method (FEM) adopting the superposition principle. Simulation results demonstrated that the proposed tDCS system enables effective and accurate field concentration on targeted brain areas.

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Magnetics, IEEE Transactions on  (Volume:47 ,  Issue: 5 )