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Clinical and Research Reports   |    
EEG Under Sleep-Deprived Conditions: Its Usefulness in Psychiatry: Two Case Examples
Osman Özdemir, M.D.; Adem Aydin, M.D.; Aysel Milanlioglu, M.D.; Ekrem Yilmaz, M.D.
The Journal of Neuropsychiatry and Clinical Neurosciences 2014;26:97-100. doi:10.1176/appi.neuropsych.13040081
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From the Dept. of Psychiatry, Yuzuncu Yil University, Van, Turkey.

Send correspondence to Dr. Osman Özdemir; e-mail: drosmanozdemir@yahoo.com

Copyright © 2014 by the American Psychiatric Association

Received April 08, 2013; Revised May 24, 2013; Accepted May 28, 2013.


Epilepsy is a brain disorder characterized by recurrent and unpredictable seizures. It is associated with an increased risk of developing mental disorders. Electroencephalography (EEG) is the most important diagnostic tool for this disease; however, a normal EEG cannot exclude the diagnosis of epileptic seizures, so EEG performed under sleep deprivation was performed in two case examples treated in the psychiatry clinic, in order to prove that sleep deprivation may increase epileptiform discharges.

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FIGURE 1. Case #1: Focal Theta Slow-Wave Paroxysms in the Right Occipital Region

FIGURE 2. Case #2: Generalized Epileptiform Activity in Sleep-Deprived EEG, Characterized by High-Amplitude Spike and Wave Discharges in Anterior Regions of Both Cerebral Hemispheres


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