Giuseppe Bersani is Associate Professor of Psychiatry, Department of Medico-Surgical Sciences and Biotechnologies, at both the Degree Courses of Medicine of the Faculty of Pharmacy and Medicine of Sapienza University of Rome. He has been for about ten years Head of the Clinical Psychiatry Unit at the Policlinico “Umberto I” inRome and he is currently Head of the University Psychiatry Unit at the Polo Pontino / Terracina Hospital. He has been active in research fields in clinical Psychiatry, as well as in Neurosciences and Pharmacopsychiatry. He is author of over 150 articles cited in international databases. His present research interests are also on the changes in psychopathology expression and course of mental illness with respect to psychopharmcology treatments and to the impact of use and abuse of old and novel psychoactive substances.