[Changes in the quantitative characteristics of the efferent activity of the scratching generator when the influence of the descending systems is removed].
The effects of signals coming from descending systems of the spinal cord on parameters of the activity of scratching generators were investigated on the decerebrated immobilized animals. It was shown that the removal of modulation influences of the cerebellum on the nuclei of descending systems (decerebellation) caused changes in the ratio of the activity of the generator half-centres, rose instability of the generator work, weakened the statistical dependence between changes in parameters of the activity of the generator half-centres and strengthened the generators sensitivity to afferent signals. The total removal of influences of descending systems (after decapitation) induced reduction of the intensity of the efferent activity and afferent sensitivity of the scratching generator. The functional role of descending signals in the work of the scratching generator is discussed.
Degtiarenko
A M
AM
D000344:Afferent Pathways / Q000187:drug effects / Q000502:physiology; D000818:Animals; D001522:Behavior, Animal / Q000502:physiology*; D002415:Cats; D002531:Cerebellum / Q000187:drug effects / Q000502:physiology; D003655:Decerebrate State / Q000503:physiopathology; D004525:Efferent Pathways / Q000187:drug effects / Q000502:physiology; D004558:Electric Stimulation; D006120:Grooming / Q000187:drug effects / Q000502:physiology*; D012018:Reflex / Q000187:drug effects / Q000502:physiology*; D013116:Spinal Cord / Q000187:drug effects / Q000502:physiology*; D014403:Tubocurarine / Q000494:pharmacology
D014403:Tubocurarine
Izmeneniia kolichestvennykh kharakteristik éfferentnoĭ aktivnosti chesatel'nogo generatora pri ustranenii vliianiia niskhodiashchikh sistem.