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Vestibulo-ocular reflex
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=== Integrated neural control === The VOR is controlled by a neural integrator. The neuron from each horizontal semicircular canal fires at a rate of <math>(90 + 0.4 \dot H) \; \mathrm{Hz}</math>, where <math>\dot H</math> is the sensed horizontal angular velocity of the semicircular canal. The [[Motor neuron|motoneuron]] commanding the horizontal eye muscles fires at a rate of <math>(4 \;\mathrm{Hz / deg}) \theta + (1.0 \;\mathrm{Hz / (deg/sec)}) \dot \theta </math>, where <math>\theta</math> is the horizontal turning angle, and <math>\dot \theta </math> is its horizontal angular speed. The two terms account for the elasticity and viscosity of ocular tissue.<ref name="Robinson 33β45"/> The rotational [[moment of inertia]] of the eye is negligible, as individuals wearing weighted contact lens that increases the rotational moment of inertia almost 100-fold still has the same VOR (p. 94 <ref name=":1">{{Cite book |last=Tweed |first=Douglas |title=Microcosms of the brain: what sensorimotor systems reveal about the mind |date=2003 |publisher=Oxford University Press |isbn=978-0-19-850735-2 |location=Oxford; New York}}</ref>).
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