Title :
Capacitive Electrodes in Electroencepahlography
Author :
Von Ellenrieder, Nicolas ; Spinelli, Enrique ; Muravchik, Carlos H.
Author_Institution :
Area Dept. Electrotecnia, Univ. Nacional de La Plata
fDate :
Aug. 30 2006-Sept. 3 2006
Abstract :
We present a forward problem formulation for computing biopotentials measured with dry or capacitive electrodes. This formulation is not quasistatic and has mixed boundary conditions. Our results show that simple approximations to the measurements based on capacitive coupling are adequate in most situations. We study the range of validity and errors committed in the EEG forward and inverse problems when using this approximation
Keywords :
bioelectric potentials; biomedical electrodes; biomedical measurement; capacitive sensors; electroencephalography; inverse problems; biopotential computation; capacitive coupling; capacitive electrodes; dry electrodes; electroencephalography; forward problems; inverse problems; mixed boundary conditions; Biological materials; Boundary conditions; Conducting materials; Dielectrics and electrical insulation; Electric potential; Electrodes; Electroencephalography; Inverse problems; Magnetic heads; Skin;
Conference_Titel :
Engineering in Medicine and Biology Society, 2006. EMBS '06. 28th Annual International Conference of the IEEE
Conference_Location :
New York, NY
Print_ISBN :
1-4244-0032-5
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2006.260226
