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Caloric stimulators that apply a stream of air or water to the ear canal at a controlled rate of flow and temperature for vestibular function testing. Vestibular function stimulators consist of an irrigation system that includes a pump, valves, heaters, and regulators to control the rate of flow and temperature of the fluid. The stimulation of the semicircular canal produces involuntary eye movements, which can be measured using a nystagmograph.
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