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  Vol. 38 No. 3, March 1981 TABLE OF CONTENTS
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Autonomic Nervous System Activity in Acute Schizophrenia

II. Relationships to Short-term Prognosis and Clinical State

Theodore P. Zahn, PhD; William T. Carpenter, Jr, MD; Thomas H. McGlashan, MD

Arch Gen Psychiatry. 1981;38(3):260-266.


Abstract

• Autonomic nervous system (ANS) activity in acute schizophrenic patients was assessed to examine predictive relationships to clinical course. Unmedicated patients were rated on global psychopathology and tested on skin conductance, heart rate, and skin temperature during rest, a series of tones, and reaction time and mental arithmetic tasks three weeks after admission and again about three months later. On the admission tests, a pattern of ANS activity found in schizophrenics in general (high resting "arousal," slow habituation, and attenuated ANS reactivity, particularly to demanding stimuli and situations) was found in patients who were to remain clinically ill but not in patients whose recovery was more complete, especially in males. Thus, ANS activity is predictive of short-term outcome in acute schizophrenia. Minimal ANS changes accompanied clinical improvement, which suggests a "trait" interpretation, but "state" effects cannot be completely ruled out.



Author Affiliations

From the Laboratory of Psychology and Psychopathology (Dr Zahn) and the Adult Psychiatry Branch (Drs Carpenter and McGlashan), National Institute of Mental Health, Bethesda, Md. Dr Carpenter is now with the Maryland Psychiatric Research Center, Baltimore. Dr McGlashan is now with Chestnut Lodge, Rockville, Md.


Footnotes

Accepted for publication April 8, 1980.

Reprint requests to Bldg 31, Room 4C39, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD 20014 (Dr Zahn).



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