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. 1983 May;338:113–128. doi: 10.1113/jphysiol.1983.sp014664

Shared reflex pathways of group I afferents of different cat hind-limb muscles.

P J Harrison, E Jankowska, T Johannisson
PMCID: PMC1197185  PMID: 6308242

Abstract

The convergence of group I muscle afferents of different muscle origin onto interneurones in spinal reflex pathways has been investigated using the technique of spatial facilitation of the transmission from afferents to motoneurones. The investigated pathways are those of non-reciprocal inhibition and of oligosynaptic excitation of motoneurones. Extensive convergence has been found of group I afferents from muscles operating at the same and different joints onto the interneurones interposed in both excitatory and inhibitory, disynaptic and trisynaptic pathways to motoneurones. Convergence has been found between muscle spindle Ia and/or tendon organ Ib afferents from different muscles, thereby extending observations on convergence of these subgroups of group I afferents from the same muscles. The results show that group I afferents of different muscles influence motoneurones via shared neuronal pathways and that transmission from these afferents is influenced by afferents originating in other muscles. The afferent information forwarded to individual motoneurones is therefore the ensemble picture of the length and tension of many muscles.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. BRADLEY K., ECCLES J. C. Analysis of the fast afferent impulses from thigh muscles. J Physiol. 1953 Dec 29;122(3):462–473. doi: 10.1113/jphysiol.1953.sp005014. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Bergmans J., Burke R., Fedina L., Lundberg A. The effect of dopa on the spinal cord. 8. Presynaptic and "remote" inhibition of transmission from Ia afferents to alpha motoneurones. Acta Physiol Scand. 1974 Mar;90(3):618–639. doi: 10.1111/j.1748-1716.1974.tb05627.x. [DOI] [PubMed] [Google Scholar]
  3. Coppin C. M., Jack J. J., MacLennan C. R. A method for the selective electrical activation of tendon organ afferent fibres from the cat soleus muscle. J Physiol. 1970 Sep;210(1):18P–20P. [PubMed] [Google Scholar]
  4. Czarkowska J., Jankowska E., Sybirska E. Common interneurones in reflex pathways from group 1a and 1b afferents of knee flexors and extensors in the cat. J Physiol. 1981 Jan;310:367–380. doi: 10.1113/jphysiol.1981.sp013555. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. ECCLES J. C., ECCLES R. M., LUNDBERG A. Synaptic actions on motoneurones caused by impulses in Golgi tendon organ afferents. J Physiol. 1957 Sep 30;138(2):227–252. doi: 10.1113/jphysiol.1957.sp005849. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. ECCLES J. C., ECCLES R. M., LUNDBERG A. Synaptic actions on motoneurones in relation to the two components of the group I muscle afferent volley. J Physiol. 1957 May 23;136(3):527–546. doi: 10.1113/jphysiol.1957.sp005778. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Engberg I., Lundberg A. An electromyographic analysis of muscular activity in the hindlimb of the cat during unrestrained locomotion. Acta Physiol Scand. 1969 Apr;75(4):614–630. doi: 10.1111/j.1748-1716.1969.tb04415.x. [DOI] [PubMed] [Google Scholar]
  8. Fetz E. E., Jankowska E., Johannisson T., Lipski J. Autogenetic inhibition of motoneurones by impulses in group Ia muscle spindle afferents. J Physiol. 1979 Aug;293:173–195. doi: 10.1113/jphysiol.1979.sp012884. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. HUNT C. C., McINTYRE A. K. Characteristics of responses from receptors from the flexor longus digitorum muscle and the adjoining interosseous region of the cat. J Physiol. 1960 Aug;153:74–87. doi: 10.1113/jphysiol.1960.sp006519. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Hongo T., Jankowska E., Lundberg A. The rubrospinal tract. II. Facilitation of interneuronal transmission in reflex paths to motoneurones. Exp Brain Res. 1969;7(4):365–391. doi: 10.1007/BF00237321. [DOI] [PubMed] [Google Scholar]
  11. Jankowska E., Johannisson T., Lipski J. Common interneurones in reflex pathways from group 1a and 1b afferents of ankle extensors in the cat. J Physiol. 1981 Jan;310:381–402. doi: 10.1113/jphysiol.1981.sp013556. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Jankowska E., McCrea D. A. Shared reflex pathways from Ib tendon organ afferents and Ia muscle spindle afferents in the cat. J Physiol. 1983 May;338:99–111. doi: 10.1113/jphysiol.1983.sp014663. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Jankowska E., McCrea D., Mackel R. Oligosynaptic excitation of motoneurones by impulses in group Ia muscle spindle afferents in the cat. J Physiol. 1981 Jul;316:411–425. doi: 10.1113/jphysiol.1981.sp013797. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Jankowska E., McCrea D., Mackel R. Pattern of 'non-reciprocal' inhibition of motoneurones by impulses in group Ia muscle spindle afferents in the cat. J Physiol. 1981 Jul;316:393–409. doi: 10.1113/jphysiol.1981.sp013796. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. LAPORTE Y., LLOYD D. P. C. Nature and significance of the reflex connections established by large afferent fibers of muscular origin. Am J Physiol. 1952 Jun;169(3):609–621. doi: 10.1152/ajplegacy.1952.169.3.609. [DOI] [PubMed] [Google Scholar]
  16. LUNDBERG A., WINSBURY G. Selective adequate activation of large afferents from muscle spindles and Golgi tendon organs. Acta Physiol Scand. 1960 Jul 15;49:155–164. doi: 10.1111/j.1748-1716.1960.tb01939.x. [DOI] [PubMed] [Google Scholar]
  17. Lundberg A., Malmgren K., Schomburg E. D. Convergence from Lb, cutaneous and joint afferents in reflex pathways to motoneurones. Brain Res. 1975 Apr 4;87(1):81–84. doi: 10.1016/0006-8993(75)90783-0. [DOI] [PubMed] [Google Scholar]
  18. Lundberg A., Malmgren K., Schomburg E. D. Cutaneous facilitation of transmission in reflex pathways from Ib afferents to motoneurones. J Physiol. 1977 Mar;265(3):763–780. doi: 10.1113/jphysiol.1977.sp011742. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. Lundberg A., Malmgren K., Schomburg E. D. Role of joint afferents in motor control exemplified by effects on reflex pathways from Ib afferents. J Physiol. 1978 Nov;284:327–343. doi: 10.1113/jphysiol.1978.sp012543. [DOI] [PMC free article] [PubMed] [Google Scholar]

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