Implications of Ewald's Second Law for Diagnois of Unilateral Labyrinthine Paralysis
- 1 July 1979
- journal article
- Published by Wiley in Otolaryngology -- Head and Neck Surgery
- Vol. 87 (4), 459-462
- https://doi.org/10.1177/019459987908700410
Abstract
The feasibility of replacement of the caloric test with sinusoidal rotatory stimulations of differing frequencies was investigated in ten normal subjects and seven patients with unilateral labyrinthine paralysis. Testing was performed at frequencies ranging from 0.0125 to 0.2 Hz at 60°/sec and at 0.05 Hz at peak velocities of 30°/sec to 180°/sec. Gain, phase, and asymmetry of the nystagmic responses were measured in these groups. Results indicated that the rotatory test was not reliable enough to be used as the sole measure for identifying patients with unilateral labyrinthine lesions.Keywords
This publication has 7 references indexed in Scilit:
- Ewald's Second Law Re-EvaluatedActa Oto-Laryngologica, 1977
- Quantitative Measurement of Smooth Pursuit Eye MovementsAnnals of Otology, Rhinology & Laryngology, 1976
- Testing of the Vestibular System by Sinusoidal Angular AccelerationActa Oto-Laryngologica, 1972
- Physiology of peripheral neurons innervating semicircular canals of the squirrel monkey. II. Response to sinusoidal stimulation and dynamics of peripheral vestibular system.Journal of Neurophysiology, 1971
- On the Repeal of Ewald's Second LawActa Oto-Laryngologica, 1961
- On the Case for Repeal of Ewald's Second Law Some Introductory RemarksActa Oto-Laryngologica, 1961
- STUDIES IN HUMAN VESTIBULAR FUNCTIONBrain, 1942