Title :
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
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;
Conference_Titel :
Engineering in Medicine and Biology Society, 2008. EMBS 2008. 30th Annual International Conference of the IEEE
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4244-1814-5
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2008.4650142
