[Visual-vestibular interaction in the clinical picture of the neurological manifestations of cervical osteochondrosis. The suppression of the vestibulo-ocular reflex].

In 57 patients with various forms of neurological manifestations of cervical osteochondrosis the authors examined the suppression of the vestibulo-ocular reflex (VOR) by asking the patients to fix their gaze on the object moving together with the armchair. Under normal conditions VOR suppression was complete. In unilateral involvement of the peripheral portion of the vestibular system VOR were not suppressed if the patient was moving according to a sinusoidal programme with the armchair rotating at a speed of 60 degrees/s in the direction of the healthy labyrinth. Patients with dysfunction of the brain stem-cerebellum portions of the vestibular system showed impairment of VOR suppression when they were rotated into both sides.