The silent period in the stretch response of ia-activated dorsal spino-cerebellar tract neurons to sinusoidal muscle stretch in cats

1983 ◽  
Vol 48 (3) ◽  
pp. 195-199 ◽  
Author(s):  
J. Kröller ◽  
L. Weiss
Keyword(s):  
Silent Period ◽  
Muscle Stretch ◽  
Sinusoidal Muscle Stretch ◽  
Stretch Response

Activity pattern of muscle stretch receptors at the beginning of muscular reflex contraction and its relation to the silent period

1982 ◽  
Vol 76 (3) ◽  
pp. 528-537 ◽  
Author(s):  
Radmila Anastasijević ◽  
Jovan Vučo
Keyword(s):  
Activity Pattern ◽  
Silent Period ◽  
Muscle Stretch ◽  
Stretch Receptors

Impulse patterns of Ia afferents and Ia-activated DSCT neurons during sinusoidal muscle stretch in cats

1982 ◽  
Vol 392 (4) ◽  
pp. 399-404 ◽  
Author(s):  
J. Kr�ller ◽  
O. -J. Gr�sser
Keyword(s):  
Muscle Stretch ◽  
Ia Afferents ◽  
Sinusoidal Muscle Stretch

Superimposing noise linearizes the responses of primary muscle spindle afferents to sinusoidal muscle stretch

1988 ◽  
Vol 60 (2) ◽  
pp. 131-137 ◽  
Author(s):  
J. Kröller ◽  
O. -J. Grüsser ◽  
L. -R. Weiss
Keyword(s):  
Muscle Spindle ◽  
Muscle Spindle Afferents ◽  
Muscle Stretch ◽  
Sinusoidal Muscle Stretch

Random muscle stretch and peri-spike averaging in the analysis of muscle spindle stretch response

1985 ◽  
pp. 385-390
Author(s):  
J. Kröller ◽  
O. -J. Grüsser ◽  
L. Weiss
Keyword(s):  
Muscle Spindle ◽  
Muscle Stretch ◽  
Stretch Response

Effect of sinusoidal muscle stretch on neurons in medial and descending vestibular nuclei.

1971 ◽  
Vol 34 (5) ◽  
pp. 725-734 ◽  
Author(s):  
O Pompeiano ◽  
C D Barnes
Keyword(s):  
Vestibular Nuclei ◽  
Muscle Stretch ◽  
Sinusoidal Muscle Stretch

Activation Patterns of Hindlimb Motor Units in the Awake Rat and Their Relation to Motoneuron Intrinsic Properties

1999 ◽  
Vol 82 (2) ◽  
pp. 709-717 ◽  
Author(s):  
Monica Gorassini ◽  
David J. Bennett ◽  
Ole Kiehn ◽  
Torsten Eken ◽  
Hans Hultborn
Keyword(s):  
Motor Units ◽  
Intrinsic Properties ◽  
Lateral Gastrocnemius ◽  
Muscle Stretch ◽  
Activation Patterns ◽  
Firing Rates ◽  
Wide Range ◽  
Awake Rat ◽  
Sinusoidal Muscle Stretch ◽  
Synaptic Drive

The activity of hindlimb motor units from the lateral gastrocnemius and tibialis anterior muscles in the awake rat was compared during locomotion and during slow, sinusoidal muscle stretch. The majority of units were activated with high initial frequencies and often commenced firing with an initial doublet or triplet, even when activated by slow muscle stretch. The high firing rates at recruitment occurred without jumps in the firing rates of other concurrently activated units, the firing rate profiles of which were used as a measure of the net synaptic drive onto the motoneuronal pool. This suggested that the sharp recruitment jumps were not due to an abrupt increase in synaptic drive but rather due to intrinsic properties of the motoneuron. In addition, motor units that were activated phasically by the muscle stretch fired more action potentials during muscle shortening than during muscle lengthening, resulting in rightwardly skewed, asymmetrical firing profiles. In contrast, when the same units fired tonically during the imposed muscle stretch, the frequency profiles were modulated symmetrically and no nonlinearities were observed. Tonically firing units were modulated symmetrically throughout a wide range of firing frequencies, and discrete jumps in rate (i.e., bistable firing) were not observed. The sharp recruitment jumps during locomotion and muscle stretch are proposed to have resulted from the additional depolarization produced by the activation of plateau potentials at recruitment. Likewise, the sustained activation of plateaus subsequent to recruitment may have produced the prolonged firing of the motor units during sinusoidal muscle stretch.

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