Modeling transcranial DC stimulation

Author

Oostendorp, Thom F. ; Hengeveld, Yvonne A. ; Wolters, Carsten H. ; Stinstra, Jeroen ; van Elswijk, Gijs ; Stegeman, Dick F.

Author_Institution

Dept. Cognitive Neuroscience, Radboud University Medical Center in Nijmegen, the Netherlands

fYear

2008

fDate

20-25 Aug. 2008

Firstpage

4226

Lastpage

4229

Abstract

A method to estimate the potential and current density distribution during transcranial DC stimulation (tDCS) is introduced. The volume conductor model consists of a realistic head model (concerning shape as well as conductivity), obtained from T1-, PD- and DT-MR images. The model includes five compartments with different conductivities. For the skull and the white matter compartments, the conductivities are anisotropic. Using this model, the potentials inside the head that are generated by tDCS electrodes positioned on the scalp were computed by using the Finite Element Method. The results show that this is a promising method for the study of the effects of tDCS.

Keywords

Anisotropic magnetoresistance; Conductivity; Conductors; Current density; Electrodes; Finite element methods; Head; Scalp; Shape; Skull; Algorithms; Anisotropy; Brain; Brain Mapping; Electric Conductivity; Electric Stimulation; Electrodes; Equipment Design; Finite Element Analysis; Humans; Magnetic Resonance Imaging; Models, Anatomic; Models, Neurological; Models, Theoretical; Software;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2008. EMBS 2008. 30th Annual International Conference of the IEEE

Conference_Location

Vancouver, BC

ISSN

1557-170X

Print_ISBN

978-1-4244-1814-5

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2008.4650142

Filename

4650142