Neuronal basis of afferent-evoked enhancement of locomotor activity

Annals of the New York Academy of Sciences

Volumn 860, Issue , 1998, Pages 216-225

  McCrea, David A ^a  

^a UNIVERSITY OF MANITOBA   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

AFFERENT NERVE GROUP 1; ANKLE; CAT; CONFERENCE PAPER; DECEREBRATION; EXCITATORY POSTSYNAPTIC POTENTIAL; EXTENSOR MUSCLE; HINDLIMB; INTERNEURON; LATENT PERIOD; LOCOMOTION; MESENCEPHALON; MOTONEURON; MUSCLE FIBER MEMBRANE CONDUCTANCE; NERVE EXCITABILITY; NERVE STIMULATION; NEUROMUSCULAR BLOCKING; NONHUMAN; POSTSYNAPTIC INHIBITION; REFLEX; SENSORY NERVE CELL; STIMULATION; TENDON RECEPTOR;

EID: 0032430682     PISSN: 00778923     EISSN: None     Source Type: Book Series    
DOI: 10.1111/j.1749-6632.1998.tb09051.x     Document Type: Conference Paper

References (38)

1. 1. Jankowska, E., D. McCrea & R. Mackel. 1981. Pattern of "nonreciprocal" inhibition of motoneurones by impulses in group Ia muscle spindle afferents in the cat. J. Physiol. 316: 393-409.
2. 2. Jankowska, E. & D. A. McCrea. 1983. Shared reflex pathways from Ib tendon organ afferents and Ia muscle spindle afferents in the cat. J. Physiol. 338: 99-111.
3. 3. Jami, L. 1992. Golgi tendon organs in mammalian skeletal muscle: Functional properties and central actions. Physiol. Rev. 72: 623-666.
4. 4. Conway, B. A., H. Hultborn & O. Kiehn. 1987. Proprioceptive input resets central locomotor rhythm in the spinal cord. Exp. Brain Res. 68: 643-656.
5. 5. Gossard, J.-P., R. M. Brownstone, I. Barajon & H. Hultborn. 1994. Transmission in a locomotor-relaled group Ib pathway from hindlimb extensor muscles in the cat. Exp. Brain Res. 98: 213-228.
6. 6. Guertin, P., M. J. Angel, M.-C. Perreault & D.A. McCrea. 1995. Ankle extensor group I afferents excite extensors throughout the hindlimb during MLR-evoked fictive locomotion in the cat. J. Physiol. 487: 197-209.
7. 7. McCrea, D. A., S. J. Shefchyk, M. J. Stephens & K. G. Pearson. 1995. Disynaptic group I excitation of synergist ankle extensor motoneurones during fictive locomotion in the cat. J. Physiol. 487: 527-539.
8. 8. Angel, M. J., E. Jankowska & D. A. McCrea. 1998. Candidate interneurones mediating group I disynaptic EPSPs in extensor motoneurones during fictive locomotion in the cat. Submitted.
9. 9. Brink, E., P. J. Harrison, E. Jankowska, D. A. McCrea & B. Skoog. 1983. Post-synaptic potentials in a population of motoneurones following activity of single interneurones in the cat. J. Physiol. 343: 341-359.
10. 10. Angel, M. J., P. Guertin, I. Jiménez & D. A. McCrea. 1996. Group I extensor afferents evoke disynaptic EPSPs in cat hindlimb extensor motorneurones during fictive locomotion. J. Physiol. 494: 851-861.
11. 11. Schomburg, E. D. & H. B. Behrends. 1978. The possibility of phase-dependent monosynaptic and polysynaptic Ia excitation to homonymous motoneurons during fictive locomotion. Brain Res. 143: 533-537.
12. 12. Pearson, K. G. & D. F. Collins. 1993. Reversal of the influence of group Ib afferents from plantaris on activity in medial gastrocnemius muscle during locomotor activity. J. Neurophysiol. 70: 1009-1017.
13. 13. Pearson, K. G., J. M. Ramirez & W. Jiang. 1992. Entrainment of the locomotor rhythm by group Ib afferents from ankle extensor muscles in spinal cats. Exp. Brain Res. 90: 557-566.
14. 14. Duysens, J. & K. G. Pearson. 1980. Inhibition of flexor burst generator by loading ankle extensor muscles in walking cats. Brain Res. 187: 321-332.
15. 15. Pearson, K. G. 1995. Proprioceptive regulation of locomotion. Curr. Opin. Neurobiol. 5: 786-791.
16. 16. Brownstone, R. M., J.-P. Gossard & H. Hultborn. 1994. Voltage-dependent excitation of motoneurones from spinal locomotor centres in the cat. Exp. Brain Res. 102: 34-44.
17. 17. Guertin, P. A., M.-C. Perreault & D. A. McCrea. 1998. Group I resetting during fictive locomotion is evoked simultaneously in hindlimb extensor and flexor motoneurones in cat. Submitted.
18. 18. Guertin, P. A., M. J. Angel, I. Jiménez & D. A. McCrea. 1998. The contribution of segmental reflex and CPG related pathways to group I-evoked enhancement of extensor activity during fictive locomotion in the cat. Submitted.
19. 19. Schmidt, B. J., S. Hochman & J. N. MacLean. 1998. NMDA receptor-mediated oscillatory properties: Potential role in rhythm generation in the mammalian spinal cord. Ann. N. Y. Acad. Sci. This volume.
20. 20. McCrea, D. A., S. Krawitz, B. Fedirchuk & L. M. Jordan. 1997, Group I-evoked extensor motoneurone activity is amplified by voltage-dependent depolarizations during locomotion. Soc. Neurosci. Abstr. 23: 298.3.
21. 21. Brownstone, L. M. Jordan, D. J. Kriellaars, B. R. Noga & S. J. Shefchyk. 1992. On the repetitive firing in lumbar motoneurones during fictive locomotion in the cat. Exp. Brain. Res. 90: 441-455.
22. 22. Krawitz, S., B. Fedirchuk, Y. Dai, L. M. Jordan & D. A. McCrea. 1997. Locomotion hyper-polarizes the voltage threshold of cat lumbar motoneurones. Soc. Neurosci. Abstr. 23: 298.4.
23. 23. Eken, T. & O. Kiehn. 1989. Bistable firing properties of soleus motor units in unrestrained rats. Acta Physiol. Scand. 136: 383-394.
24. 24. Schomburg, E. D. & H. Steffens. 1996. Bistable characteristics of motoneurone activity during DOPA induced fictive locomotion in spinal cats. Neurosci. Res. 26: 47-56.
25. 25. Duenas, S. H. & P. Rudomin. 1988. Excitability changes of ankle extensor group Ia and Ib fibers during fictive locomotion in the cat. Exp. Brain Res. 70: 15-25.
26. 26. McCrea, D. A. & M.-C. Perreault. 1997. PAD and modulation of group II-evoked flexion reflexes during MLR-evoked fictive locomotion. In Presynaptic Inhibition and Neural Control mechanisms. P. Rudomin, R. Romo & L. Mendell, Eds.: 366-384. Oxford Univ. Press.
27. 27. Gosgnach, S., J. Quevedo, B. Fedirchuk & D. McCrea. 1998. Tonic presynaptic reduction of monosynaptic Ia EPSPs during fictive locomotion. Ann. N. Y. Acad. Sci. This volume.
28. 28. Bennett, D. J., S. J. De Serres & R. B. Stein. 1996. Gain of the triceps surae stretch reflex in decerebrale and spinal cats during postural and locomotor activities. J. Physiol. 496: 837-850.
29. 29. Prochazka, A. 1996. Proprioceptive feedback and movement regulation. In Handbook of Physiology. Section 12. Exercise: Regulation and Integration of Multiple Systems. L. Rowell & J. T. Sheperd, Eds.: 89-127. American Physiological Society. Bethesda, MD.
30. 30. Whelan, P. J. & K. G. Pearson. 1997. Comparison of the effects of stimulating extensor group I afferents on cycle period during walking in conscious and decerebrate cats. Exp. Brain Res. 117: 444-452.
31. 31. Perreault, M.-C., M. J. Angel, P. Guertin & D. A. McCrea. 1995. Effects of stimulation of hindlimb flexor group II muscle afferents during fictive locomotion. J. Physiol. 487: 211-220.
32. 32. Hiebert, G. W., P. Whelan, A. Prochazka & K. G. Pearson. 1996. Contribution of hindlimb flexor muscle afferents to the timing of phase transitions in the cat step cycle. J. Neurophysiol. 75: 1-12.
33. 33. Degtyarenko, A. M., E. S. Simon, T. Norden-Krichmar & R. E. Burke. 1998. Modulation of oligosynaptic cutaneous and muscle afferent reflex pathways during fictive locomotion and scratching in the cat. J. Neurophysiol. 79: 447-463.
34. 34. Quevedo, J., B. Fedirchuk, S. Gosgnach & D. McCrea. 1998. Group I disynaptic excitation in flexor and bifunctional motoneurons during locomotion. Ann. N. Y. Acad. Sci. This volume.
35. 35. Schomburg, E. D., N. Petersen, N. Barajon & H. Hultborn. Flexor reflex afferents (FRA) resent the step cycle during fictive locomotion in the cat. Acta Physiol. Scand. 149: 22A.
36. 36. Iizuka, M., O. Kiehn & N. Kudo. 1997. Development in neonatal rats of the sensory resetting of the locomotor rhythm induced by NMDA and 5-HT. Exp. Brain Res. 114: 193-204.
37. 37. Stephens, M. J. & J. F. Yang. 1996. Short latency, nonreciprocal group I inhibition is reduced during walking in humans. Brain Res. 743: 24-31.
38. 38. Harkema, S. J., S. L. Hurley, U. K. Patel, P. S. Requejo, B. H. Dobkin & V. R. Edgerton. 1997. Human lumbosacral spinal cord interprets loading during stepping. J. Neurophysiol. 77: 797-811.