Improved separability of dipole sources by tripolar versus conventional disk electrodes: A modeling study using independent component analysis
Document Type
Conference Proceeding
Date of Original Version
1-1-2009
Abstract
Tripolar electrodes have been shown to have less mutual information and higher spatial resolution than disc electrodes. In this work, a four-layer anisotropic concentric spherical head computer model was programmed, then four configurations of time-varying dipole signals were used to generate the scalp surface signals that would be obtained with tripolar and disc electrodes, and four important EEG artifacts were tested: eye blinking, cheek movements, jaw movements, and talking. Finally, a fast fixed-point algorithm was used for signal independent component analysis (ICA). The results show that signals from tripolar electrodes generated better ICA separation results than from disc electrodes for EEG signals with these four types of artifacts. ©2009 IEEE.
Publication Title, e.g., Journal
Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society Engineering the Future of Biomedicine Embc 2009
Citation/Publisher Attribution
Cao, H., W. Besio, S. Jones, and A. Medvedev. "Improved separability of dipole sources by tripolar versus conventional disk electrodes: A modeling study using independent component analysis." Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society Engineering the Future of Biomedicine Embc 2009 (2009). doi: 10.1109/IEMBS.2009.5333724.