NDLI: Adaptive interference reduction in nerve cuff electrode recordings

Content Provider	IEEE Xplore Digital Library
Author	Triantis, I. Rieger, R. Taylor, J. Donaldson, N.
Copyright Year	2001
Description	Author affiliation: EE Dept., Univ. Coll. London, UK (Triantis, I.)
Abstract	Neural signals (ENG) recorded from insulating cuffs fitted with electrodes and placed around nerve bundles may replace artificial sensors in providing feedback signals in functional electrical stimulation (FES) applications. Typical applications include correction of foot-drop, hand grasp in tetraplegic subjects and bladder voiding in certain types of incontinence. Unfortunately, the ENG signal recorded using this method is on the order of a few /spl mu/V whereas interfering signals can have amplitudes of many mV. Probably the main source of such interference is the Electromyogram (EMG) which is generated by excited muscles near the cuff. A method is presented to reduce the interference pickup in nerve cuff recordings. The gains of differential amplifiers connected to true-tripole nerve cuff recording arrangement are timed adaptively to null the residual EMG. Simulation results show that extraction of the neural signal is possible using this method without the need for additional high order filtering.
Sponsorship	IEEE CAS Soc. Univ. Malta
Starting Page	669
Ending Page	672
File Size	312312
Page Count	4
File Format	PDF
ISBN	0780370570
DOI	10.1109/ICECS.2001.957564
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-09-02
Publisher Place	Malta
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interference Electrodes Electromyography Muscles Impedance Dielectrics and electrical insulation Neurofeedback Neuromuscular stimulation Differential amplifiers Biomembranes
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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