期刊
BRAIN RESEARCH REVIEWS
卷 57, 期 1, 页码 228-240出版社
ELSEVIER
DOI: 10.1016/j.brainresrev.2007.06.019
关键词
spinal locomotion; locomotor training; spinal plasticity; denervation; muscle afferents; cutaneous afferents; intraspinal microstimulation
The present paper reviews aspects of locomotor sensorimotor interactions by focussing on work performed in spinal cats. We provide a brief overview of spinal locomotion and describe the effects of various types of sensory deprivations (e.g. rhizotomies, and lesions of muscle and cutaneous nerves) to highlight the spinal neuroplasticity necessary for adapting to sensory loss. Recent work on plastic interactions between reflex pathways that could be responsible for such plasticity, in particular changes in proprioceptive and cutaneous pathways that occur during locomotor training of spinal cats, is discussed. Finally, we describe how stimulation of some sensory inputs via various limb manipulations or intraspinal electrical stimulation can affect the expression of spinal locomotion. We conclude that sensory inputs are critical not only for locomotion but also that changes in the efficacy of sensory transmission and in the interactions between sensory pathways could participate in the normalization of locomotion after spinal and/or peripheral lesions. (c) 2007 Elsevier B.V. All rights reserved.
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