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A Case Study

Deborah L. Levy, PhD; Leonard R. Proctor, MD; Philip S. Holzman, PhD

Arch Otolaryngol. 1977;103(5):287-291.

Abstract
• Eliminating opportunity for visual fixation as well as providing for the maintenance of an optimal degree of a patient's mental alertness are necessary for a valid assessment of nystagmic response to caloric stimulation. Controlling only for alertness can result in suppressed, absent, or dysrhythmic nystagmus. Data from four normal patients dramatically illustrate the suppressing effects of fixation opportunity despite an alert state. A new clinical instrument for obtaining optimal control over visual influences is described.

(Arch Otolaryngol 103:287-291, 1977)

Author Affiliations
From the Department of Psychiatry, New York Hospital-Cornell Medical Center (Dr Levy), the Department of Surgery, Johns Hopkins School of Medicine (Dr Proctor), and the Department of Psychiatry, University of Chicago (Dr Holzman).

Footnotes
Accepted for publication Dec 13, 1976.

Reprint requests to Department of Psychiatry, Westchester Division, New York HospitalCornell Medical Center, 21 Bloomingdale Rd, White Plains, NY 10605 (Dr Levy).

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