Intrinsic activation of human motoneurons: Possible contribution to motor unit excitation

Journal of Neurophysiology

Volumn 87, Issue 4, 2002, Pages 1850-1858

  Gorassini, Monica ^a,b   Yang, Jaynie F ^a,b   Siu, Merek ^a   Bennett, David J ^a  

^a Division of Neuroscience   (Canada)

^b UNIVERSITY OF ALBERTA   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

ADULT; ARTICLE; CLINICAL ARTICLE; DEPOLARIZATION; FEMALE; HUMAN; MALE; MOTONEURON; MOTOR UNIT; MUSCLE CONTRACTION; MUSCLE ISOMETRIC CONTRACTION; PRIORITY JOURNAL; SOLEUS MUSCLE; TIBIALIS ANTERIOR MUSCLE;

EID: 0036092734     PISSN: 00223077     EISSN: None     Source Type: Journal    
DOI: 10.1152/jn.00024.2001     Document Type: Article

References (47)

1. Synaptic activation of plateaus in hindlimb motoneurons of decerebrate cats
2. Short-term plasticity in hindlimb motoneurons of decerebrate cats
3. Evidence for plateau potentials in tail motoneurons of awake chronic spinal rats with spasticity
4. Plateau potentials in sacrocaudal motoneurons of chronic spinal rats, recorded in vitro
5. Force output of cat motor units stimulated with trains of linearly varying frequency
6. Motor unit activity during long-lasting intermittent muscle contractions in humans
7. Maintained changes in motoneuronal excitability by short-lasting synaptic inputs in the decerebrate cat
8. Common drive of motor units in regulation of muscle force
9. Behaviour of human motor units in different muscles during linearly varying contractions
10. Behaviour of motor units of human arm muscles: Differences between slow isometric contraction and relaxation
11. Ballistic contractions in man: Characteristic recruitment pattern of single motor units of the tibialis anterior muscle
12. Muscle afferent responses to isometric contractions and relaxation in humans
13. Bistable firing properties of soleus motor units in unrestrained rats
14. Motor unit and muscle activity in voluntary motor control
15. Activation patterns of hindlimb motor units in the awake rat and their relation to motoneuron intrinsic properties
16. Reduction in recruitment threshold of human motor units by repeated muscle activation
17. Self-sustained firing of human motor units
18. Activity of hindlimb motor units during locomotion in the awake rat
19. Intrinsic activation of human motoneurons: Reduction of motor unit recruitment thresholds by repeated contractions
20. Quantitative aspects of repetitive firing of mammalian motoneurons, caused by injected currents
21. Daily durations of spontaneous activity in cat's ankle muscles
22. Cat hindlimb motoneurons during locomotion. II. Normal activity patterns
23. Bistability of alpha-motoneurons in the decerebrate cat and in the acute spinal cat after intravenous 5-hydroxytryptophan
24. Serotonin-induced bistability of turtle motoneurons caused by a nifedipine-sensitive calcium plateau potential
25. Effects of combining static and dynamic fusimotor stimulation on the response of the muscle spindle primary ending to sinusoidal stretching
26. Neuromodulation of vertebrate motor neuron membrane properties
27. 5-HT and motor control: A hypothesis
28. Time course and properties of late adaptation in spinal motoneurones of the cat
29. Prolonged firing in motor units - Evidence of plateau potentials in human motoneurons?
30. Analysis of firing behaviour of human motoneurones within "subprimary range"
31. Influence of voltage-sensitive dendritic conductances on bistable firing and effective synaptic current in cat spinal motoneurons in vivo
32. Bistability in spinal motoneurons in vivo: Systematic variations in persistent inward currents
33. Enhancement of bistability in spinal motoneurons in vivo by the noradrenergic alpha1 agonist methoxamine
34. Adjustable amplification of synpatic input in the dendrites of spinal motoneurons in vivo
35. Relationship of firing intervals of human motor units to the trajectory of post-spike after-hyperpolarization and synaptic noise
36. The orderly recruitment of human motor units during voluntary isometric contractions
37. Selective recruitment of high-threshold human motor units during voluntary isotonic lengthening of active muscles
38. Discharge frequency and discharge pattern of human motor units during voluntary contractions of muscle
39. Amplification and linear summation of synaptic effects on motoneuron firing rate
40. Post-contraction changes in human muscle spindle resting discharge and stretch sensitivity
41. Fluctuations in motor unit recruitment threshold during slow isometric contractions of wrist extensor muscles in man
42. Comparison of fluctuations of motor unit recruitment and de-recruitment thresholds in man
43. Contribution of outward currents to spike-frequency adaptation in hypoglossal motoneurons of the rat
44. Membrane properties of cat spinal motoneurons
45. Human motor-unit recruitment during isometric contractions and repeated dynamic movements
46. Muscle spindle response at the onset of isometric voluntary contractions in man. Time difference between fusimotor and skeletomotor effects
47. Increased resting discharge of human spindle afferents following voluntary contractions