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Psychosomatic Medicine, Vol 53, Issue 5 576-584, Copyright © 1991 by American Psychosomatic Society

ORIGINAL ARTICLES

A naturalistic study of the relationships among electromyographic activity, psychological stress, and pain in ambulatory tension-type headache patients and headache-free controls

JP Hatch, TJ Prihoda, PJ Moore, M Cyr-Provost, S Borcherding, NN Boutros and E Seleshi
Department of Psychiatry, University of Texas Health Science Center, San Antonio 78284-7792.

Twelve subjects who met diagnostic criteria for episodic tension-type headache and nine subjects who rarely or never suffered from headaches wore a computer-controlled electromyographic (EMG) activity recorder in their natural environment for 48 to 96 consecutive hours. EMG activity of the posterior neck or frontal muscles was recorded 24 hr per day. During waking hours, subjects rated their perceived levels of stress, pain, and negative affect at 30-min intervals. The EMG activity of headache and control subjects did not differ significantly, and EMG activity did not covary with stress, pain, or negative affect. Cross-correlations among EMG activity, pain, and stress revealed little evidence of leading, contemporaneous, or lagging relationships. Interrupted time series analysis showed no consistent muscle hyperactivity during a headache attack compared to a headache-free baseline period.


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A. Okifuji, D. C. Turk, and D. A Marcus
Comparison of Generalized and Localized Hyperalgesia in Patients With Recurrent Headache and Fibromyalgia
Psychosom Med, November 1, 1999; 61(6): 771 - 780.
[Abstract] [Full Text] [PDF]


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Copyright © 1991 by the American Psychosomatic Society