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Psychosomatic Medicine, Vol 59, Issue 5 533-540, Copyright © 1997 by American Psychosomatic Society

ORIGINAL ARTICLES

Physiological activation in patients with Sleep State Misperception

MH Bonnet and DL Arand
Neurology Service, Department of Veterans Affairs Medical Center, Dayton, OH 45428, USA.

OBJECTIVE: Sleep State Misperception insomnia has been commonly viewed as a perceptual or psychological problem. It was hypothesized that Sleep State Misperception insomnia, like psychophysiological insomnia, could be associated with increased physiological activation, here indexed by whole body metabolic rate. METHOD: Groups of nine patients with Sleep State Misperception insomnia and age-, sex-, and weight-matched normal sleepers were evaluated on sleep, performance, mood, personality, and metabolic measures over a 36-hour sleep laboratory stay. RESULTS: Sleep State Misperception insomniacs had a subjective history of poor sleep and perceived their laboratory sleep as poor but had electroencephalogram (EEG) parameters that did not differ statistically from matched normal controls. Sleep State Misperception insomniacs had abnormal MMPI values and were subjectively more confused, tense, depressed, and angry than matched normals. Sleep State Misperception insomniacs also had a significantly increased 24-hour metabolic rate, compared with matched normals. CONCLUSIONS: The overall increase in whole body oxygen use was less than that seen in psychophysiological insomniacs but was consistent with the view that Sleep State Misperception insomnia may be a mild version or a precursor to psychophysiological insomnia.


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Copyright © 1997 by the American Psychosomatic Society