Capacitive Electrodes in Electroencepahlography

Author

Von Ellenrieder, Nicolas ; Spinelli, Enrique ; Muravchik, Carlos H.

Author_Institution

Area Dept. Electrotecnia, Univ. Nacional de La Plata

fYear

2006

fDate

Aug. 30 2006-Sept. 3 2006

Firstpage

1126

Lastpage

1129

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2006. EMBS '06. 28th Annual International Conference of the IEEE

Conference_Location

New York, NY

ISSN

1557-170X

Print_ISBN

1-4244-0032-5

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2006.260226

Filename

4461954