An image-guided transcranial direct current stimulation system: a pilot phantom study
- Title
- An image-guided transcranial direct current stimulation system: a pilot phantom study
- Author
- 임창환
- Keywords
- transcranial direct current stimulation (tDCS); finite element method(FEM),; electrostatic field; image-guided tDCS (IG-tDCS); array-type electrode
- Issue Date
- 2013-08
- Publisher
- IOP PUBLISHING
- Citation
- Physiological Measurement, Aug 2013, 34(8), P.937-950
- Abstract
- In this study, an image-guided transcranial direct current stimulation (IG-tDCS) system that can deliver an increased stimulation current to a target brain area without the need to adjust the location of an active electrode was implemented. This IG-tDCS system was based on the array-type tDCS concept, which was validated through computer simulations in a previous study. Unlike a previous study, the present IG-tDCS system adopts a single reference electrode and an active electrode array consisting of 16 (4 × 4) sub-electrodes. The proposed IG-tDCS system is capable of shaping current flow inside the human head by controlling the input currents of the arrayed electrodes. Once a target brain area has been selected, the optimal injection current of each arrayed sub-electrode is evaluated automatically using a genetic algorithm in order to deliver the maximum available current to the target area. The operation of our pilot system was confirmed through a simple phantom experiment.
- URI
- http://iopscience.iop.org/article/10.1088/0967-3334/34/8/937/metahttp://hdl.handle.net/20.500.11754/45550
- ISSN
- 0967-3334
- DOI
- 10.1088/0967-3334/34/8/937
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
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