A novel array-type transcranial direct current stimulation (tDCS) system for accurate focusing on targeted brain regions

Author

Park, Ji-Hye ; Kim, Do-Won ; Im, Chang-Hwan

Author_Institution

Dept. of Biomed. Eng., Yonsei Univ., Wonju, South Korea

fYear

2010

fDate

9-12 May 2010

Firstpage

1

Lastpage

1

Abstract

In this paper, we propose a new transcranial direct current stimulation (tDCS) system which uses multiple electrode arrays. Once a target location inside a human brain is selected, optimal injection current at each electrode is determined by solving a constrained optimization problem, of which the objective function is evaluated by 3D finite element method (FEM) adopting the superposition principle for enhanced computational efficiency. Simulation studies demonstrated that the proposed tDCS system enables more effective and accurate focusing on targeted brain areas than the conventional system.

Keywords

bioelectric phenomena; biomedical electrodes; biomedical measurement; brain; finite element analysis; medical computing; neurophysiology; optimisation; 3D finite element method; FEM; accurate focusing; constrained optimization problem; enhanced computational efficiency; multiple electrode arrays; optimal injection current; superposition principle; tDCS system; targeted brain region; transcranial direct current stimulation system; Biomedical electrodes; Biomedical engineering; Brain modeling; Computer simulation; Constraint optimization; Current density; Finite element methods; Humans; Parkinson´s disease; Scalp;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Field Computation (CEFC), 2010 14th Biennial IEEE Conference on

Conference_Location

Chicago, IL

Print_ISBN

978-1-4244-7059-4

Type

conf

DOI

10.1109/CEFC.2010.5481279

Filename

5481279