Gamma-motoneurone discharge patterns during fictive locomotion in the decerebrate cat.
Triceps surae gamma-motoneurones were recorded during fictive locomotion in the paralysed high decerebrate cat. Two distinctive patterns of discharge were observed which were similar to those reported for static and dynamic gamma-motoneurones during locomotion in the same preparation, but without paralysis (Murphy, Stein & Taylor, 1984). These results suggest that movement-related afferent feedback is not essential for the generation of the basic patterns of static and dynamic gamma-motoneurone activity during locomotion. The results are discussed in relation to the generation of alpha and gamma locomotor rhythms.
Murphy
P R
PR
Division of Neurobiology, Medical School, The University, Newcastle upon Tyne.
Hammond
G R
GR
D000200:Action Potentials; D000818:Animals; D002415:Cats; D003655:Decerebrate State; D005246:Feedback; D006614:Hindlimb / Q000294:innervation; D008124:Locomotion / Q000502:physiology*; D009043:Motor Activity / Q000502:physiology*; D009046:Motor Neurons / Q000502:physiology*; D009047:Motor Neurons, Gamma / Q000502:physiology*