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July 1967

Electronystagmography in Patients With Vestibular Disorders

Author Affiliations

New Orleans, La
From the Department of Otolaryngology, Tulane University School of Medicine, New Orleans, La.

Arch Otolaryngol. 1967;86(1):38-43. doi:10.1001/archotol.1967.00760050040008

IN RECENT years electronystagmography (ENG) has emerged as a relatively simple diagnostic technique. Although the clinical value of nystagmus as a measure of vestibular activity is not in question, heretofore there have been few methods available for the adequate, objective evaluation of this important phenomenon. Electronystagmography is a skin electrode technique utilizing the well-established Mowrer principle (corneoretinal potential) to detect and record eye movements.1 The technique and equipment have been refined so that ENG can now be a part of the clinician's complete neuro-otologic examination. Electronystagmography is far more sophisticated than classical subjective methods of observing eye movements, and therefore ENG has become an important means of recording and evaluating nystagmus.

Recording Procedure  The recording procedure is divided into two phases. The first is to detect spontaneous or positional nystagmus and the second to record nystagmus induced by caloric stimulation. The patient is seated, and electrodes are placed at

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