Pflügers Archiv

, Volume 394, Issue 3, pp 239–242 | Cite as

Dynamic properties of renshaw cells: Equivalence of responses to step changes in recruitment and discharge frequency of motor axons

  • H. -G. Ross
  • S. Cleveland
  • A. Kuschmierz
Excitable Tissues and Central Nervous Physiology


In decerebrate cats, the dynamic responses of Renshaw cells to step changes in input were determined seperately both for changes in the number of α-axons excited and for changes in the frequency at which they were stimulated. Together, these two input variables to the Renshaw cells describe the level of activity in the motor output from the spinal cord.

In either case, the dynamic responses of the interneurons depend only on their static activity before and after an input step occurs, but are otherwise indistinguishable. This favors the interpretation that the two input variables are equivalent under dynamic conditions, i.e., Renshaw cells respond to total motor output.

Key words

Motor control Renshaw cells Dynamic properties 


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Copyright information

© Springer-Verlag 1982

Authors and Affiliations

  • H. -G. Ross
    • 1
  • S. Cleveland
    • 1
  • A. Kuschmierz
    • 1
  1. 1.Physiologisches Institut II der Universität DüsseldorfDüsseldorfFederal Republic of Germany

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