Abstract
Possible organization patterns of scratching and locomotor generators that allow interpretation of experimentally demonstrated reorganizations in temporal parameters of these generator activities after electrical stimulation of descending and peripheral afferent systems were analyzed with application of mathematical simulation of neuronal generator systems. The results obtained led to the conclusion that patterns of such reorganizations influenced by signals from suprasegmental and/or peripheral systems may be determined by only two factors: 1) the structure of synaptic connections between interneuronal functional groups underlying these generator associations, and 2) the structure of connections between these groups of interneurons and fibers from suprasegmental and peripheral afferent sources. The existence of inhibitory-excitatory actions from descending and afferent systems upon the neurons of locomotor or scratching generator half-centers is a sufficient condition to ensure phasic changes in the sensitivity of these generators to supraspinal and afferent signals. The locomotor generator, unlike the scratching generator, is apparently characterized by a more complex organization of connections between functional neuronal groupings and descending fibers.
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Translated from Neirofiziologiya, Vol. 25, No. 1, pp. 45–50, January–February, 1993.
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Degtyarenko, A.M. Possible organization pattern of interaction between the generators of cyclic motor activity and inputs from supraspinal and afferent systems. Neurophysiology 25, 38–42 (1993). https://doi.org/10.1007/BF01053632
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DOI: https://doi.org/10.1007/BF01053632