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The effects of primary afferent depolarization on excitability fluctuations of Ia terminals within the motor nucleus

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  • Physiologia
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Résumé

Sur la préparation de chat spinal aigue, les réponses antidromiques des fibres afférentes la dans un noyeau de motoneurones montrent des fluctuations considérables réduites par des volées afférentes qui provoquent une dépolarisation des afférences primaires. Les réponses provoquées par activation directe des motoneurones sont très stables, et leurs fluctuations non affectées par la stimulation afférente. Ces faits suggèrent que la variabilité du réflexe monosynaptique est principalement due aux fluctuations du potentiel de membrane des parties terminales des fibres afférentes Ia.

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References

  1. P. Rudomin andH. Dutton, Nature216, 292 (1967).

    Article  CAS  Google Scholar 

  2. M. Kuno, J. Physiol.175, 100 (1964).

    Article  CAS  Google Scholar 

  3. P. D. Wall, inPhysiology of Spinal Neurons (Ed.J. C. Eccles andJ. P. Schade; Elsevier, Amsterdam 1964), p. 92.

    Google Scholar 

  4. J. C. Eccles, P. Fatt, S. Landgren andG. J. Winsbury, J. Physiol.125, 590 (1954).

    Article  CAS  Google Scholar 

  5. B. Renshaw, J. Neurophysiol.3, 373 (1940).

    Article  Google Scholar 

  6. J. C. Eccles, inPhysiology of Spinal Neurons (Ed.J. C. Eccles andJ. P. Schade; Elsevier, Amsterdam 1964), p. 65.

    Google Scholar 

  7. B. Katz andS. Thesleff, J. Physiol.137, 397 (1956).

    Google Scholar 

  8. E. Henneman, G. Somjen andD. O. Carpenter, J. Neurophysiol.27, 560 (1965).

    Article  Google Scholar 

  9. D. O. Carpenter andE. Henneman, J. Neurophysiol.29, 353 (1966).

    Article  CAS  Google Scholar 

  10. C. C. Hunt, J. gen. Physiol.38, 801 (1955).

    Article  CAS  Google Scholar 

  11. W. Rall andC. C. Hunt, J. gen. Physiol.39, 397 (1956).

    Article  CAS  Google Scholar 

  12. G. G. Somjen andC. J. Heath, Expl Neurol.15, 79 (1966).

    Article  CAS  Google Scholar 

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Authors and Affiliations

  1. Departments of Physiology and Electrical Engineering, Centro de Investigación y de Estudios Avanzados del I.P.N., México 14 D.F.

    P. Rudomin & H. Dutton

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  1. P. Rudomin
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  2. H. Dutton
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Rudomin, P., Dutton, H. The effects of primary afferent depolarization on excitability fluctuations of Ia terminals within the motor nucleus. Experientia 24, 48–50 (1968). https://doi.org/10.1007/BF02136785

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