1. Lecturer in Psychiatry, Laboratory of Psychophysiology, 3rd Department of Psychiatry, Aristotle University of Thessaloniki, 53 Chrysostomou Smyrnis Street, 55132 Aretsou Thessaloniki, Greece fax 30 2310-266570,
2. Assistant Professor of Psychiatry, 3rd Department of Psychiatry, Aristotle University of Thessaloniki
3. Professor of Psychiatry, Director 3rd Department of Psychiatry Aristotle University of Thessaloniki