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. 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.
Publication Title, e.g., Journal
Proceedings of the IEEE Annual Northeast Bioengineering Conference Nebec
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 IEEE Annual Northeast Bioengineering Conference Nebec (2009). doi: 10.1109/NEBC.2009.4967721.