Results 1 to 10 of about 4,060 (164)

Augmented and prematurely occurring H-reflex recovery curve shows enhanced spinal network excitability in ALS patients when employing the double stimulation paradigm [PDF]

open access: yesFrontiers in Neurology
Amyotrophic Lateral Sclerosis (ALS) is a fatal neurodegenerative disorder in which motoneuron loss in the brain and spinal cord induces complex neuroplastic changes.
Sebastian A. Wölk   +3 more
doaj   +2 more sources

Optic Flow Simulating Self-Motion Does Not Modulate the Hoffmann Reflex in the Soleus During Upright Standing in Healthy Young Adults [PDF]

open access: yesBrain Sciences
Background/Objectives: Visual motion is a powerful contributor to postural control, yet its influence on modulation of the Ia afferent pathway remains to be confirmed. This study investigated whether optic-flow simulating self-motion modulates the soleus
Christophe Barbanchon, Stéphane Baudry
doaj   +2 more sources

Noise-Limited Failure of OGY Chaos Control in Regulating Monosynaptic Reflex Variability in the In Vivo Cat Spinal Cord [PDF]

open access: yesNeuroSci
Monosynaptic reflexes (MSRs) elicited by constant-intensity group I afferent stimulation exhibit marked amplitude variability, commonly attributed to stochastic presynaptic modulation and dynamic postsynaptic excitability.
Elias Manjarrez   +3 more
doaj   +2 more sources

TRANSMISSION IN FRACTIONATED MONOSYNAPTIC SPINAL REFLEX SYSTEMS [PDF]

open access: yesJournal of General Physiology, 1955
A study has been made of conditions that support monosynaptic reflex transmission from afferent fibers of one part of a synergic muscle mass to motoneurons of another part. Heteronymous response so called can be brought on by prior tetanization of the afferent pathway and by asphyxiation to a critical stage.
David P C Lloyd   +2 more
exaly   +3 more sources

Neurophysiological parameters in patients with hallux valgus

open access: yesВестник медицинского института «Реавиз»: Реабилитация, врач и здоровье, 2022
We examined 38 patients (35 women and 3 men aged 30–40 years) with stage 2 and 3 hallux valgus in the department of traumatology and orthopedics of the Irkutsk Scientific Centre of Surgery and Traumatology to study the electroneuromyographic parameters ...
T. K. Verkhozina   +5 more
doaj   +1 more source

A Biorealistic Computational Model Unfolds Human-Like Compliant Properties for Control of Hand Prosthesis

open access: yesIEEE Open Journal of Engineering in Medicine and Biology, 2022
Objective: Human neuromuscular reflex control provides a biological model for a compliant hand prosthesis. Here we present a computational approach to understanding the emerging human-like compliance, force and position control, and stiffness adaptation ...
Zhuozhi Zhang   +7 more
doaj   +1 more source

Neural effects of muscle stretching on the spinal reflexes in multiple lower-limb muscles. [PDF]

open access: yesPLoS ONE, 2017
While previous studies have shown that muscle stretching suppresses monosynaptic spinal reflex excitability in stretched muscles, its effects on non-stretched muscles is still largely unknown.
Yohei Masugi   +4 more
doaj   +1 more source

Altered regulation of Ia afferent input during voluntary contraction in humans with spinal cord injury

open access: yeseLife, 2022
Sensory input converging on the spinal cord contributes to the control of movement. Although sensory pathways reorganize following spinal cord injury (SCI), the extent to which sensory input from Ia afferents is regulated during voluntary contraction ...
Bing Chen, Monica A Perez
doaj   +1 more source

Immobilization leads to reduced stretch reflexes but increased central reflex gain in the rat [PDF]

open access: yes, 2020
Plastic adaptations are known to take place in muscles, tendons, joints and the nervous system in response to changes in muscle activity. However, few studies have addressed how these plastic adaptations are related.
Pingel, Jessica   +5 more
core   +1 more source

A Re-evaluation of Whether Non-monosynaptic Homonymous H Reflex Facilitation Tests Propriospinal Circuits

open access: yesFrontiers in Systems Neuroscience, 2021
The C3–C4 propriospinal system is an important pathway mediating movement in cats; it contributes to movements in primates (including humans), and may have a role in recovery after lesion.
Karen M. Fisher, Stuart N. Baker
doaj   +1 more source

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