[Dynamic properties of postural reflexes of the neck in the cat].
Changes in the forelimb extensor reflexes during fixed shifts and cyclic tilting of the head were investigated in decerebrated vestibuloectomized cats. In the used frequency range (0.05-1.0 Hz) the phase lead (10-15 degrees) of these changes was observed. The increase of tested reflexes was more pronounced during cyclic tilts than during fixed shifts. It is suggested that neck postural reflexes, primarily postulated as exclusively tonic, should be regarded as those having a phasic component.
D000818:Animals; D002415:Cats; D003655:Decerebrate State / Q000503:physiopathology; D003714:Denervation; D004558:Electric Stimulation; D005071:Evoked Potentials; D009333:Neck / Q000502:physiology*; D011187:Posture; D012018:Reflex / Q000502:physiology*; D014722:Vestibule, Labyrinth / Q000502:physiology
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