Rhythmic phrenic, intercostal and sympathetic activity in relation to limb and trunk motor activity in spinal cats

Neuroscience Research
E D SchomburgK Dembowsky

Abstract

During L-DOPA-induced fictive spinal locomotion rhythmic activities in nerves to internal intercostal and external oblique abdominal muscles and in phrenic and sympathetic nerves were observed which were always coordinated with locomotor activity in forelimb and hindlimb muscle nerves. A periodicity with longer lasting tonic phases could be induced by cutaneous nerve stimulation or asphyxia. This activity was observed in limb motor nerves as well as in respiratory motor and sympathetic nerves. A slow independent activity of the phrenic and intercostal nerves or the sympathetic nerves, which could be related to a normal respiratory rhythm or independent sympathetic rhythms was not observed. The findings indicate that during fictive spinal locomotion the activity of spinal rhythm generators for locomotion also projects onto respiratory and sympathetic spinal neurones.

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Citations

Aug 28, 2004·Autonomic Neuroscience : Basic & Clinical·Bernat Kocsis, Katalin Gyimesi-Pelczer
Jan 22, 2010·International Journal of Stroke : Official Journal of the International Stroke Society·O WalusinskiJ Bogousslavsky
Jun 12, 2010·Annals of the New York Academy of Sciences·Lea Ziskind-ConhaimDavid J Titus
Feb 6, 2018·The Open Orthopaedics Journal·Shu-Yan Ng, Josette Bettany-Saltikov
Jan 6, 2015·The Journal of Physiology·Jack L Feldman, Kaiwen Kam
Dec 17, 2020·Journal of Parkinson's Disease·Conor FearonTimothy Lynch
Mar 31, 2005·Revue neurologique·O WalusinskiJ-P Neau

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