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FRANCIS SCHILLER, M.D.; WILLIAM C. HEDBERG, M.D.

AMA Arch Neurol. 1960;2(3):309-316.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

"Positional" nystagmus is that which may be observed only, or in a much modified form, when the head is in specific positions, excluding the erect posture. Since Bárány¹ observed the phenomenon in the 1920's, it has been discussed a good deal by Scandinavian and German otologists (e.g., Nylén^2,3 and Seiferth⁴), and more recently by the English group led by Hallpike⁵; in this country only Lindsay⁶ has devoted much study to it, and the neurological literature has been relatively reticent altogether. Even among otologists the test seems not to be widely used or understood.⁷ Because it is useful principally in the diagnosis of central disturbances of equilibrium, it is of particular interest to neurologists and psychiatrists.

Bárány's short note¹ was about a patient with peripheral disease which the author believed to be situated in the utricular portion of the labyrinth. The otolith mechanism within . . . [Full Text PDF of this Article]

Author Affiliations
San Francisco

From the Division of Neurology, Department of Medicine, and the Department of Otorhinolaryngology, Permanente Medical Group, Kaiser Foundation Hospital.

Footnotes
Accepted for publication Oct. 21, 1959.

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