An Analyzer for Autonomic Nerve Activities in Acute and Chronic Animals

A real-time analyzer for autonomic nerve activity in acute and chronic animals has been developed. This device, using a finite difference method, can separate individual neural spikes from compound nerve action potentials consisting of base-line drift due to bodily movement, 60 Hz power-line interfe...

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Bibliographic Details
Published in:IEEE transactions on biomedical engineering 1986-01, Vol.BME-33 (1), p.63-66
Main Authors: Yonezawa, Yoshiharu, Ninomiya, Ishio, Nishiura, Naoki, Kajita, Shinji
Format: Article
Language:English
Subjects:
Action Potentials
Animals
Aorta - innervation
Autonomic Nervous System - physiology
Bioelectric phenomena
Biological and medical sciences
Cats
Distortion measurement
Electric potential
Electrocardiography
Electrodiagnosis - instrumentation
Electrodiagnosis. Electric activity recording
Electromyography
Finite difference methods
Interference
Investigative techniques, diagnostic techniques (general aspects)
Medical sciences
Phase distortion
Phase measurement
Signal to noise ratio
Time measurement
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Summary:A real-time analyzer for autonomic nerve activity in acute and chronic animals has been developed. This device, using a finite difference method, can separate individual neural spikes from compound nerve action potentials consisting of base-line drift due to bodily movement, 60 Hz power-line interference, and bioelectrical signals such as electromyogram and electrocardiogram, and with poor signal-to-noise ratio recorded in multifiber preparations or whole nerves. Because there is no phase distortion of neural spikes, the precise time interval between the individual neural spikes can be measured and is converted to analog voltage with a rate meter. This device can perform quantitative analyses of compound nerve action potentials in real time, independent of 60 Hz power-line interference, ECG, and base-line drift.
ISSN:0018-9294
1558-2531
DOI:10.1109/TBME.1986.325854