PMID: 8976313Dec 1, 1996Paper

Stimulus artifact reduction in evoked potential measurements

Archives of Physical Medicine and Rehabilitation
L McLeanP A Parker

Abstract

To investigate the main coupling mechanisms involved in stimulus artifact contamination of evoked potential recordings and to suggest techniques that minimize this interference. A before-after trial of a single subject. Measurements were obtained at a university biomedical engineering laboratory. Data were obtained from one volunteer subject. An electrical stimulus was used to depolarize the posterior tibial nerve at the ankle. Various recording electrode configurations were used to demonstrate stimulus artifact recordings. Three mechanisms are defined as contributing significantly to stimulus artifact contamination of evoked potential data. These are: the volume conducted component, the displacement current component, and the electromagnetic coupling component. When each component is maximally controlled, the problem of stimulus artifact is greatly reduced. Three major factors that contribute to stimulus artifact contamination of the evoked potential waveform can be identified and minimized by relatively simple clinical techniques.

References

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Citations

Feb 12, 2008·Journal of Neuroscience Methods·Thermpon AtivanichayaphongJ-C Chiao
Feb 13, 2004·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·Francesco MandrileRoberto Merletti
Feb 25, 2021·Journal of Neuroscience Methods·Boudewijn van den BergJan R Buitenweg

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