Mirko Manchia1, Bernardo Carpiniello2. 1. Section of Psychiatry, Department of Medical Science and Public Health, University of Cagliari, Cagliari, Italy; Department of Pharmacology, Dalhousie University, Halifax, Nova Scotia, Canada. Electronic address: mirko.manchia@dal.ca. 2. Section of Psychiatry, Department of Medical Science and Public Health, University of Cagliari, Cagliari, Italy.