Remote detection of human electrophysiological signals using electric potential sensors

We describe the measurement of human electrophysiological and movement signals remotely from a seated subject. An ultrahigh impedance electric potential sensor, designed specifically to reject external noise, is used to measure the electric field at distances of up to 40 cm from the surface of the b...

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Bibliographic Details
Published in:Applied physics letters 2008-07, Vol.93 (3), p.033906-033906-3
Main Authors: Prance, R. J., Beardsmore-Rust, S. T., Watson, P., Harland, C. J., Prance, H.
Format: Article
Language:English
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Summary:We describe the measurement of human electrophysiological and movement signals remotely from a seated subject. An ultrahigh impedance electric potential sensor, designed specifically to reject external noise, is used to measure the electric field at distances of up to 40 cm from the surface of the body. The sensor is able to provide continuous data acquisition, at full sensitivity, without saturation by external noise sources. Respiration and heart signals are seen simultaneously and are separated using digital filtering techniques. All of the results reported were obtained in an open unshielded environment in close proximity to line operated computer equipment.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2964185