After-effects of fusimotor stimulation on spindle la afferents' dynamic sensitivity, revealed during slow movements

After-effects of fusimotor action on dynamic sensitivity of spindle primary afferents from soleus resulted from low rate stimulation of both static and dynamic γ-axons. Sensitivity to small sinusoidal stretches superimposed on triangles was enhanced during triangular lengthening but not during short...

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Veröffentlicht in:Brain research 1982-01, Vol.232 (2), p.460-465
Hauptverfasser: Baumann, T.K., Emonet-De´nand, F., Hulliger, M.
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Emonet-De´nand, F.
Hulliger, M.
description After-effects of fusimotor action on dynamic sensitivity of spindle primary afferents from soleus resulted from low rate stimulation of both static and dynamic γ-axons. Sensitivity to small sinusoidal stretches superimposed on triangles was enhanced during triangular lengthening but not during shortening. These after-effects were elicited by fusimotor stimulation during preceding triangular shortening, but not during lengthening. Given these characteristics, they may be important functionally during alternating rhythmic movements.
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subjects Afferent Pathways - physiology
after-effects
Animals
Cats
fusimotor neurone
Hindlimb - innervation
Mechanoreceptors - physiology
Motor Activity - physiology
Motor Neurons - physiology
Motor Neurons, Gamma - physiology
Muscle Contraction
muscle spindle
Muscle Spindles - physiology
Muscles - innervation
Reflex, Stretch
rhythmic a alternating movements
sinusoidal stretching
Space life sciences
title After-effects of fusimotor stimulation on spindle la afferents' dynamic sensitivity, revealed during slow movements
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