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Computer simulation of the impulse pattern of muscle spindle afferents under static and dynamic conditions

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Zusammenfassung

Zur Beschreibung und Deutung von Messungen an deefferentierten Muskelspindelafferenzen unter statischer und dynamischer Reizung wird ein einfaches Modell verwendet, das hauptsächlich das Generatorpotential des Mechanoreceptors und die zeitabhängige Änderung der Empfindlichkeit an der impulserzeugenden Membran simuliert. Die Eigenschaften des Modells bei der Transformation konstanter und zeitabhängiger Analogsignale in Impulsfolgen werden dargestellt und die Einflüsse der verschiedenen Modellparameter untersucht. Im Vergleich der Simulationsergebnisse mit experimentellen Daten wird gezeigt, daß die Impulsmuster sekundärer Muskelspindelafferenzen quantitativ simuliert werden können. Die dabei verwendeten Parameter werden angegeben. Analysisert werden die Häufigkeitsverteilungen der Impulsintervalle und verschiedene sequentielle Abhängigkeiten innerhalb der Impulsfolgen.

Summary

A simple model has been employed to describe and interprete measurements from deefferented muscle spindle afferents with static and dynamic stimulation; the model simulates the generator potential of the spindle and the time dependent change of sensitivity at the impulse generating membrane. The properties of the model in transforming the steady and time dependent analogue signals into impulse patterns are demonstrated, and the influence of the various parameters on the response characteristics have been investigated. Results from simulations are compared with experimental data, and it is shown that the impulse patterns of secondary muscle spindle afferents can be simulated quantitatively. The frequency distributions of impulse intervals and different sequential dependencies within the impulse patterns are analysed.

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Authors and Affiliations

  1. Department of Physiology, Freie Universität Berlin, Germany

    U. Th. Eysel

  2. Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami, School of Medicine, Germany

    U. Th. Eysel

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  1. U. Th. Eysel
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Eysel, U.T. Computer simulation of the impulse pattern of muscle spindle afferents under static and dynamic conditions. Kybernetik 8, 171–179 (1971). https://doi.org/10.1007/BF00291118

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  • DOI: https://doi.org/10.1007/BF00291118

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