Abstract
A mechanical model for oculorotatory muscle consisting of a neurally controlled Voigt element in parallel with a mass and in series with a passive elastic element, is proposed with a view to oculomotor system modelling. Each element except the mass and the series elasticity is a function of length and the viscosity is a function of velocity. Moreover, the nonlinear Voigt element is shown as a time-varying element to describe the activation of muscle.The characteristics resulting from the mathematical development agree well with the experimental data published for the operating range. The resultant length-tension characteristics of the model are parallel to the passive length-tension characteristic and are simply displaced towards shorter lengths with increasing stimulus rate.
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