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EUGENE R. WIST, PhD; WILLIAM E. COLLINS, PhD

Arch Ophthalmol. 1964;72(4):470-475.

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

While there have been at least 100 papers reporting cases of voluntary nystagmus since 1900, there have been very few quantitative determinations of its characteristics.^7,14 Little is actually known concerning the etiology of this phenomenon, although theories ranging from ocular pathology¹² to alternating innervation of opposite-pair members of the lateral rectus muscles have been proposed.^1,4,11

The case studies, which comprise the majority of the reference material, can be summarized quite simply. An individual often not possessing a past history of pathology is discovered to have the ability to "jiggle" his eyeballs at will, in a predominantly horizontal direction, for periods ranging from 6-8/sec⁶ to about 35/sec.¹³ The frequency of this "jiggling" has been reported to be within a range of from 7-8/sec² to 23/sec.⁷

There are only a few investigations in which photographic or corneoretinal potential records were obtained of voluntary nystagmus. . . . [Full Text PDF of this Article]

Author Affiliations
Lancaster, Pa; Oklahoma City, Okla

From the Department of Psychology, Franklin and Marshall College, Lancaster, and the Civil Aeromedical Research Institute, Oklahoma City.

Footnotes
Submitted for publication March 26, 1964.

The study was conducted while both authors were at the US Army Medical Research Laboratory, Fort Knox, Ky.

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