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William T. Lhamon, MD; Sanford Goldstone, PhD

Arch Gen Psychiatry. 1973;28(1):44-51.

Abstract
Time judgment by unselected schizophrenic patients was studied with measures of potential and transmitted information. Schizophrenic and healthy subjects judged lights or sounds as more or less than a clock second, or as long or short with category scales using two ranges of durations. Patients and controls also compared the last, variable member of a pair of durations with the first, standard member within and across sense modes using three interduration intervals and a category scale; one control group ingested 200 mg secobarbital.

The patients used fewer categories reducing potential information, and transmitted less information, with visual judgment suffering most in the method of single stimuli. Typical scale regulation strategies accompanied the deficit in transmitted and potential information.

Author Affiliations
New York

From the Edward W. Bourne Behavioral Research Laboratories, Westchester Division, the New York Hospital, and the Department of Psychiatry, Cornell University Medical College, New York.

Footnotes
Accepted for publication July 18, 1972.

Read before the annual meeting of the American Psychiatric Association, San Francisco, May 1970.

Reprint requests to Department of Psychiatry, Cornell University Medical College, 525 E 68th St, New York 10021 (Dr. Lhamon).

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