Frequency Response of the Human Vestibulo-Ocular Reflex System at Low Frequencies: The Effect of Adaptation

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Abstract
From the mathematical model of the human vestibulo-ocular reflex (VOR) system, the frequency response was calculated for harmonic sinusoidal acceleration. The addition of an adaptation term to the 2nd order model, describing the cupular behavior, results in considerable changes in the response characteristics in the low frequency region. An attempt was made to quantify the influence of the cupular time constant T1, and the adaptation time constant Ta on the amplitude and phase characteristics of the transfer function, which represents the human VOR system. The results of this theoretical study will be employed.

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