This paper describes a wireless multi-channel system for zero-prep electroencephalogram (EEG) measurements in operational settings. The EEG sensors are based upon a novel hybrid (capacitive/resistive) bioelectrode technology that requires no modification to the skin's outer layer. High impedance techniques developed for QUASAR'S capacitive electrocardiogram (ECG) sensors minimize the sensor's susceptibility to common-mode (CM) interference, and permit EEG measurements with electrode-subject impedances as large as 107 Ω. Results for a side-by-side comparison between the hybrid sensors and conventional wet electrodes for EEG measurements are presented. A high level of correlation between the two electrode technologies (>99% for subjects seated) was observed. The electronics package for the EEG system is based upon a miniature, ultra-low power microprocessor-controlled data acquisition system and a miniaturized wireless transceiver that can operate in excess of 72 hours from two AAA batteries. © Springer-Verlag Berlin Heidelberg 2007.
CITATION STYLE
Matthews, R., McDonald, N. J., Anumula, H., Woodward, J., Turner, P. J., Steindorf, M. A., … Pendleton, J. M. (2007). Novel hybrid bioelectrodes for ambulatory zero-prep EEG measurements using multi-channel wireless EEG system. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 4565 LNAI, pp. 137–146). Springer Verlag. https://doi.org/10.1007/978-3-540-73216-7_16
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