A Novel Array-Type Transcranial Direct Current Stimulation (tDCS) System for Accurate Focusing on Targeted Brain Areas
A Novel Array-Type Transcranial Direct Current Stimulation (tDCS) System for Accurate Focusing on Targeted Brain Areas
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DOI：
10.1109/tmag.2010.2072987
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发表时间：
2011-05-01
影响因子：
2.1
通讯作者：
Im, Chang-Hwan
中科院分区：
文献类型：
--
作者：
Park, Ji-Hye;Hong, Seung Bong;Im, Chang-Hwan
在本文中，我们提出了一种新型阵列式经颅直流电刺激（tDCS）系统，可以更有效地调节人脑皮质兴奋性。一旦确定了大脑内的目标位置，就会通过解决约束优化问题来自动计算每个电极的最佳注入电流/电位。使用叠加原理的 3D 有限元法 (FEM) 评估了实际头部模型中的电流密度分布。仿真结果表明，所提出的 tDCS 系统能够有效且准确地集中目标大脑区域。
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.