Types of Neuronal Activity in the Medial Vestibular Nucleus

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Abstract
A study of the responses of 128 neurons in the medial vestibular nucleus to ipsilateral and contralateral cold caloric stimulation revealed that 70% of those found responded to stimulation of both ears, which indicates that there is considerable crossed representation in the medial vestibular nucleus. Approximately two-thirds of the binaurally responsive neurons were reciprocally active, which suggests the influence of a crossed inhibitory arc between the two sides of the vestibular system. Other neurons in the medial vestibular nucleus appear to have representation from one side only of the vestibular system, and others appear to be nonvestibular in function.