He has authored or co-authored about 200 papers and chapters in the areas of clinical psychopathology, clinical psychopharmacology, clinical neuropsychology and philosophy and methodology of psychiatry in national and international peer-reviewed journals and books. He is the author of seven books in Greek on clinical psychopathology and the philosophy and methodology of scientific psychopathology, psychiatry and clinical psychology. He has served as reviewer for 40 national and international scientific journals and is member of the editorial board of four international psychiatric journals.