[Statistical characteristics of impulse activity of spinal locomotor centers].
The statistical analysis of the neuronal impulse activity of spinal locomotor centres was performed at rest and during generation of efferent discharges in thalamic immobilized cats. The activation of the spinal locomotor generator was accompanied by shortening of interspike intervals in neuronal spike trains and reduction of their fluctuations. During this process the interspike interval histograms became more symmetrical and the quantity of neurons which had regular oscillations in autocorrelation histograms increased considerably. At rest neuronal spike trains were characterized by dependence of successive intervals. This dependence increased during generation of efferent discharges. Possible mechanisms of the reconstruction of time organization of the neuronal impulse activity of spinal locomotor centres during their activation are discussed.
D000818:Animals; D002415:Cats; D004594:Electrophysiology; D008124:Locomotion; D009046:Motor Neurons / Q000502:physiology*; D013116:Spinal Cord / Q000502:physiology*; D013223:Statistics as Topic
Statisticheskie kharakteristiki impul'snoĭ aktivnosti neĭronov spinal'nykh lokomotornykh tsentrov.