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|Title:||Discharge patterns of human tonically firing motoneurons|
|Citation:||Biological Cybernetics, 1995; 73(2):189-194|
|Abstract:||We have attempted to reconcile the different patterns of distribution of interspike intervals that are found in motoneurones made to discharge by intracellular injection of constant current in reduced animal preparations and by voluntary control in human subjects. We recorded long spike trains from single motor units in three human muscles made to discharge at constant mean frequencies with the help of auditory and visual feedback. The distribution of interspike intervals in each spike train was analysed quantitatively. We found that the different pattern of discharge of the human motor units could be accounted for when due allowance was made for the variability of the drive to the human motoneurone which arose because of the feedback process used to maintain the target frequency. A model testing this hypothesis gave results that were qualitatively consistent with the human data.|
|Keywords:||Motor Neurons; Animals; Humans; Acoustic Stimulation; Photic Stimulation; Action Potentials; Models, Neurological; Cybernetics; Feedback; Adult; Middle Aged; Male|
|Appears in Collections:||Physiology publications|
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