Abstract
We investigated the influence of electrode contact size on cortical electroencephalogram (EEG) sensitivity distributions. We focused this investigation on the fifth sensitivity volume (FSV) of mapping the lead field in the cortex. We evaluated the cortical sensitivity in concentric spheres and realistic models, using electrode diameters of 1 mm, 5 mm, 10 mm, and 15 mm. We found that when electrodes were spaced farther apart than the bipolar pair of the 128-channel montage, real dimensional electrodes should be used rather than point electrodes in the simulation studies.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Nunez PL and Srinivasan R (2006) Electric Fields of the Brain: The Neurophysics of EEG. 2nd ed. Oxford University Press, 2006.
Ollikainen J, Vauhkonen M, Karjalainen P, Kaipio J (2000) Effects of electrode properties on EEG measurements and a related inverse problem. Med. Eng. & Phys., vol. 22, pp. 535–545, 2000.
Huiskamp G (2008) Interindividual variability of skull conductivity: an EEG-MEG analysis. Intl. J. of Bioelectromag. Vol. 10, no. 1, pp. 25–30, 2008.
Law S, Nunez P, Wijesinghe R (1993) High-resolution EEG using spline generated surface Laplacians on spherical and ellipsoidal surfaces. IEEE TBME, vol. 40, no. 2, pp. 145–153, Feb. 1993.
Suesserman M, Spelman F, Rubinstein J (1991) In vitro measurement and characterization of current density profiles produced by nonrecessed, simple recessed, and radially varying recessed stimulating electrodes. IEEE TBME, vol. 38, no. 5, pp. 401–408, May 1991.
Wendel K, Narra NG, Hannula M, Kauppinen P, Malmivuo J (2007) The Influence of Electrode Size on EEG Lead Field Sensitivity Distributions. Intl. J. of Bioelectromag., vol. 9, no. 2, pp. 116–117, 2007.
Malmivuo J, Suihko V, Eskola H (1997) Sensitivity distributions of EEG and MEG measurements. IEEE TBME, vol. 44, no. 3, pp. 196–208, March 1997.
Wendel K, Narra NG, Hannula M, Kauppinen P, Malmivuo J (2008) The Influence of CSF on EEG Sensitivity Distributions of Multilayered Head Models. IEEE TBME, vol. 55, no. 4, pp. 1454–1456, April 2008
Ferree T, Eriksen K, Tucker D (2000) Regional head tissue conductivity estimation for improved EEG analysis. IEEE TBME, vol. 47, no. 12, pp 1584–1592, Dec. 2000.
Oostenveld R (2001) The five percent electrode system for high-resolution EEG and ERP measurements. J. of Clin. Neurophysiology, vol. 112, pp. 713–719, 2001.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2008 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Wendel, K., Malmivuo, J. (2008). The Effect of Electrode Size on Cortical EEG Sensitivity Distributions. In: Katashev, A., Dekhtyar, Y., Spigulis, J. (eds) 14th Nordic-Baltic Conference on Biomedical Engineering and Medical Physics. IFMBE Proceedings, vol 20. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-69367-3_93
Download citation
DOI: https://doi.org/10.1007/978-3-540-69367-3_93
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-69366-6
Online ISBN: 978-3-540-69367-3
eBook Packages: EngineeringEngineering (R0)