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Chronic experimental study of natural activity of the dog splanchnic nerve by the pulsed coherent component separation method

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Abstract

Natural electrical activity in the left greater splanchnic nerve during feeding was studied in chronic experiments on dogs. The method of separation of coherent components in pulsed form was used to analyze the discharges: Recording from the nerve was carried out at two points; activity was delayed by the time for its conduction along the nerve between the channels, in the channel which received it first, and it was then led from both channels to the coincidence unit. Spontaneous afferent impulsation was shown to spread among a group of nerve fibers with conduction velocities of between 3.7 and 20 m/sec, and with a mean velocity for the maximum of activity of 9.2±1.0 m/sec. Efferent spontaneous activity was not detected. During feeding with meat, besides spontaneous activity, activity of a group of afferent fibers with conduction velocities within the range 3.7–9.2 m/sec also was found (the mean velocity for the maximum of activity was 5.8±0.7 m/sec), and also activity of a group of efferent fibers with conduction velocities within the range 2.5–9.8 m/sec (mean value for maximum 3.5±0.5 m/sec).

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Authors
  1. I. N. Remizov
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  2. I. F. Oleinik
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  3. V. I. Skok
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Additional information

A. A. Bogomolets Institute of Physiology, Academy of Sciences of the Ukrainian SSR, Kiev. Translated from Neirofiziologiya, Vol. 13, No. 6, pp. 636–642, November–December, 1981.

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Remizov, I.N., Oleinik, I.F. & Skok, V.I. Chronic experimental study of natural activity of the dog splanchnic nerve by the pulsed coherent component separation method. Neurophysiology 13, 455–459 (1981). https://doi.org/10.1007/BF01060197

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  • DOI: https://doi.org/10.1007/BF01060197

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