[Cervical-nystagmus as related to vertebral receptors]

Two patients with absent peripheral labyrinthine function are reported, in whome cervical nystagmus could be demonstrated. Return of labyrinthine function with simultaneous disappearance of the cervical nystagmus in one of the patients demonstrates existence of receptors in the upper three vertebral joints and their potential influence on the vestibular system. Pathogenetic as well as diagnostic functions of the sensory afferent systems of the upper cervical region are discussed.