[Effect of the orientation of the head in the gravitational field on the intensity of caloric nystagmus].
The relationship between the intensity of the vertical and horizontal caloric nystagmus and the head orientation in the gravity field was studied experimentally. The positions in which the nystagmus reached the highest intensity were identified. The experimental results showed that during caloric stimulation the major contribution to the excitation of semi-circular canals was made by the convective flow of the endolymph which was dependent on the head orientation relative to the acceleration vector. The caloric tests can induce stimulation of vertical semi-circular canals which is comparable to that of horizontal canals in its strength.
D000293:Adolescent; D000328:Adult; D002150:Caloric Tests; D004584:Electronystagmography; D005133:Eye Movements; D006112:Gravitation; D006257:Head / Q000502:physiology*; D006801:Humans; D008297:Male; D009949:Orientation / Q000502:physiology; D011187:Posture
Vliianie orientatsii golovy v gravitatsionnom pole na intensivnost' kaloricheskogo nistagma.