Dr Perugi received his medical degree at the University of Pisa in 1981 and he trained in Psychiatry until 1985. He works as the co-director of the Day-Hospital unit of the Department of Psychiatry of the University of Pisa. Dr Perugi is professor of Clinical Psychiatry and Psychopharmacotherapy at the University of Pisa, Italy. From December 2000, Dr Perugi has been the director of the Institute of Behavioural Sciences "G. Delisio" in Pisa. He is involved in the International Research Project on Mood Disorders in collaboration with the University of South California in San Diego. In this field he has developed and directed many research projects on Mixed States, Mania, Anxious-Bipolar Co-morbidity and Atypical Depression-Bipolar II-Borderline connection. In the field of anxiety disorders he has directed several studies on clinical features and long-term naturalistic treatment of Panic Disorder-Agoraphobia, Obsessive-Compulsive Disorder and Social Phobia. He is part of the editorial board of the Journal of Affective Disorder and other 5 International Journals. He is the author of 3 books and over 350 papers, published in national and international Journals (about 120 peer reviewed), on psychopathology, clinical psychopharmacology, and pharmacotherapy of affective disorders.