Fusimotor Induced Phase Differences Between Responses of Primary and Secondary Endings from the Same Muscle Spindle

  • D. M. Halliday
  • M. H. Gladden
  • J. R. Rosenberg

Abstract

The work presented in this report forms part of a larger research programme in which the behaviour of the muscle spindle is described under conditions when several fusimotor inputs, and length changes are applied simultaneously to the spindle while recording simultaneously from its primary (Ia) and secondary (II) sensory endings. We restrict the current presentation to a discussion of the strength of coupling or association and time delay between the responses of primary and secondary endings from the same tenuissimus muscle spindle during activation of single and multiple fusimotor inputs. A description of this interaction is particularly interesting in the light of a recent study by Edgley and Jankowska (1987) which demonstrated the convergence of group Ia and II afferent axons onto the same interneurones in the midlumbar segment of the spinal cord.

Keywords

Spike Train Muscle Spindle Ventral Root Phase Lead Sensory Axon 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Bessou, P., and Laporte, Y., 1963, in: “Symposium on Muscle Receptors,” Hong Kong: University Press, pp.106–119.Google Scholar
  2. Brillinger, D. R., 1975a, Time Series, Data Analysis and Theory, Holt, Rinehart & Winston, New York, pp. 232–236.Google Scholar
  3. Brillinger, D. R., 1975b, “The Identification of Point Process Systems,” Ann. Probab., 3:909–929.CrossRefGoogle Scholar
  4. Edgley, S. A., and Jankowska, E., 1987, “An interneuronal relay for group I and II muscle afferents in the midlumbar segments of the cat spinal cord,” J. Physiol., 389:647–674.PubMedGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1988

Authors and Affiliations

  • D. M. Halliday
    • 1
  • M. H. Gladden
    • 1
  • J. R. Rosenberg
    • 1
  1. 1.Institute of PhysiologyUniversity of GlasgowGlasgowUK

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