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Monday, July 27, 2020 | History

3 edition of Convergence on interneurones in the reciprocal Ia inhibitory pathway to motoneurones. found in the catalog.

Convergence on interneurones in the reciprocal Ia inhibitory pathway to motoneurones.

Hans Hultborn

Convergence on interneurones in the reciprocal Ia inhibitory pathway to motoneurones.

by Hans Hultborn

  • 196 Want to read
  • 40 Currently reading

Published in Göteborg .
Written in English

    Subjects:
  • Reflexes.,
  • Motor neurons.,
  • Inhibition.,
  • Interneurons.

  • Edition Notes

    Other titlesInterneurons in the reciprocal Ia inhibitory pathway to motoneurons.
    SeriesActa physiologica Scandinavica., Supplementum 375
    Classifications
    LC ClassificationsQP1 .A2752 no. 375, QP372 .A2752 no. 375
    The Physical Object
    Pagination42 p.
    Number of Pages42
    ID Numbers
    Open LibraryOL3896514M
    LC Control Number81458422

    It has long been known that inhibition of motoneurones from supraspinal centres, as well as from segmental systems, may be transmitted via the reciprocal Ia inhibitory pathway and/or via a "private" inhibitory pathway whose last order interneurones are not shared with Ia . 5. It is therefore concluded that interneurones mediating reciprocal inhibition between wrist flexors and extensors in man differ both from Ia interneurones and from interneurones interposed in the Ib reflex pathways and these characteristics are related to the complex .

    Convergence of Ia fibres from synergistic and antagonistic muscles onto interneurones inhibitory to soleus in humans. M Schieppati. (GM) and from the tibialis anterior (TA) muscle could converge on to a single interneuronal pool inhibitory to the soleus motoneurones was investigated. 2. The soleus H reflex, evoked by tibial nerve. Randomized, double-blind, crossover, sham-controlled trial. Repetitive transcranial magnetic stimulation (rTMS) over the primary motor cortex (M1) leads to a significant reduction of spasticity in.

    HANS HULTBORN, CONVERGENCE ON INTERNEURONES IN THE RECIPROCAL Ia INHIBITORY PATHWAY TO MOTONEURONES, Acta Physiologica Scandinavica, 85, s, (), (). Wiley Online Library. R. W. Guillery, Hanna. reciprocal' and 'Ia non-reciprocal' inhibition remains to be defined. Recurrent inhibition and selective input from group Ia afferents provide the most reliable criteria of identification ofIainhibitory interneurones because there are only two groups of spinal interneurones inhibited by Renshaw cells: Ia inhibitory interneurones (Hultborn.


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Convergence on interneurones in the reciprocal Ia inhibitory pathway to motoneurones by Hans Hultborn Download PDF EPUB FB2

The conclusions regarding the convergence on the Ia inhibitory interneurones rest on studies of how transmission in the Ia inhibitory pathway is influenced from other neuronal systems; an excitatory convergence being indicated by facilitation and an inhibitory by depression of the Ia by: Convergence on interneurones mediating the reciprocal Ia inhibition of motoneurones.

III. Effects from supraspinal pathways. Hultborn H, Illert M, Santini M. Supraspinal effects were investigated in interneurones identified as mediating the disynaptic reciprocal Ia inhibition of motoneurones (referred to as Ia inhibitory interneurones).Cited by: Interneurones identified as mediating the disynaptic reciprocal Ia inhibition of motoneurones (referred to as “Ia inhibitory interneurones”) were recorded in the lumbar spinal cord of the cat.

Interneurones identified as mediating the disynaptic reciprocal Ia inhibition of motoneurones (referred to as "Ia inhibitory interneurones") were recorded in the lumbar spinal cord of the cat. Volleys in ipsilateral and contralateral high threshold muscle afferents, cutaneous and high threshold joint afferents evoked a mixture of polysynaptic Cited by:   A comparison of the properties and the patterns of convergence onto these two groups of la coupled interneurones with those required for interneurones in the la inhibitory pathway to motoneurones, as inferred from studies on transmission in the pathway, led Hultborn et al.

(b) to suggest that reciprocal la inhibition to motoneurones is Cited by:   Hultborn, H. () Convergence on interneurones in the reciprocal Ia inhibitory pathway to motoneurones. Acta physiol. scand., Suppl. 1– Google Scholar. Hultborn H. Transmission in the pathway of reciprocal Ia inhibition to motoneurones and its control during the tonic stretch reflex.

Prog Brain Res. ; – Hultborn H, Illert M, Santini M. Convergence on interneurones mediating the reciprocal Ia inhibition of motoneurones.

Disynaptic Ia inhibition of Ia inhibitory interneurones. The experimental data obtained on the synaptic linkage and the convergence in the reflex pathways from group II muscle afferents to α-motoneurones during the recent years may form a basis for an advanced interpretation of their function in spinal motor control.

Convergence on interneurones in the reciprocal Ia inhibitory pathway to. Hultborn H, Udo M. Convergence of large muscle spindle (Ia) afferents at interneuronal level in the reciprocal Ia inhibitory pathway to motoneurones.

Acta Physiol Scand. Apr; 84 (4)– Jankowska E. Interneuronal relay in spinal pathways from proprioceptors. Prog Neurobiol. ; 38 (4)– Jankowska E, McCrea DA. Hultborn gence on interneurones in the reciprocal Ia inhibitory pathway to motoneurones Acta physiol.

scand., 85 (Suppl. ) (), pp. Google Scholar. Convergence on interneurones in the trisynaptic inhibitory pathway from group II afferents to extensor motoneurones was also investigated with the spatial facilitation technique. It summarizes results showing that interneurones of the reciprocal Ia inhibitory pathway receive a wide convergence resembling that found in agonist motoneurones.

II transmission to. Facilitation ofinterneuronal transmission in reflex paths to motoneurones, Exp. Brain Res., 7 () 13 Hultborn, H., Convergence on interneurones in the reciprocal la inhibitory pathway to rnotoneu- rones, Acta physioL scand., Suppl. () 14 Hultborn, H., Transmission in the pathway of reciprocal la inhibition to.

Hultborn H () Convergence on interneurones in the reciprocal Ia inhibitory pathway to motoneurones. Acta Physiol Scand Suppl Hultborn H () Transmission in the pathway of reciprocal Ia inhibition to motoneurones and its control during the tonic stretch reflex.

The H-reflex technique was used to collect indirect evidence for changes in excitability of the interneurones mediating reciprocal Ia inhibition between wrist extensors and flexors. Stimulating the radial nerve results in an inhibition of the flexor carpi radialis (FCR) H-reflex and evidence has previously been presented that the early phase of inhibition is mediated by extensor-coupled Ia.

Get this from a library. Convergence on interneurones in the reciprocal Ia inhibitory pathway to motoneurones. [Hans Hultborn]. Hultborn gence of interneurones in the reciprocal Ia inhibitory pathway to motoneurones Acta physiol.

scand., 85 (Suppl. ) (), pp. Google Scholar. Transmission in the Ia inhibitory pathway from wrist extensor muscles onto flexor MNs was studied at various times after the onset of voluntary wrist extension or flexion.

At the very onset of wrist movements Ia inhibition was not changed, as compared to at rest, whereas later it progressively increased during wrist extension and decreased during wrist flexion. Convergence on interneurones in the reciprocal Ia inhibitory pathway to motoneurones By Hans Hultborn Topics: Medicin Allmänt.

Hultborn, H., Udo, M.: Convergence of large muscle spindle (Ia) afferents at interneuronal level in the reciprocal Ia inhibitory pathway to motoneurones. Acta physiol. scand. 84, – (). FRA and other reflex pathways.

Results are summarized showing that the FRA evoke convergent excitation in interneurones not only in group II reflex pathways but also in other reflex pathways like the reciprocal Ia inhibitory, the nonreciprocal group I inhibitory and probably also in specialized reflex pathways from cutaneous afferents.Interneurones identified as mediating the disynaptic reciprocal Ia inhibition of motoneurones (referred to as "Ia inhibitory interneurones") were recorded in the lumbar spinal cord of the cat.1.

Acta Physiol Scand Suppl. ; Convergence on interneurones in the reciprocal Ia inhibitory pathway to motoneurones. Hultborn by: