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The C3-C4 propriospinal system in the cat and monkey: a spinal pre-motoneuronal centre for voluntary motor control.

Journal article
Authors B Alstermark
T Isa
Lars-Gunnar Pettersson
S Sasaki
Published in Acta physiologica (Oxford, England)
Volume 189
Issue 2
Pages 123-40
ISSN 1748-1708
Publication year 2007
Published at Institute of Neuroscience and Physiology, Department of Physiology
Pages 123-40
Language en
Links dx.doi.org/10.1111/j.1748-1716.2006...
Keywords Animals, Behavior, Animal, physiology, Cats, Cervical Vertebrae, Evoked Potentials, Motor, physiology, Feedback, physiology, Forelimb, physiology, Interneurons, physiology, Macaca, Models, Animal, Motor Neurons, physiology, Movement, physiology, Nerve Net, physiology, Spinal Nerves, physiology, Synapses, physiology
Subject categories Medical and Health Sciences

Abstract

This review deals with a spinal interneuronal system, denoted the C3-C4 propriospinal system, which is unique in the sense that it so far represents the only spinal interneuronal system for which it has been possible to demonstrate a command mediating role for voluntary movements. The C3-C4 propriospinal neurones govern target reaching and can update the descending cortical command when a fast correction is required of the movement trajectory and also integrate signals generated from the forelimb to control deceleration and termination of reaching.

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