The psychiatric classification of psychopathological states has traditionally entailed the process of organizing observable signs and symptoms into discrete diagnostic categories, conceptualized on the basis of specific psychopathological constructs (Rosenzweig, 1982). The purpose of such conceptual categorization is not only to establish a commonly acceptable nomenclature that can reliably differentiate various forms of psychopathological experience, but to organize a set of concepts that can “help us to think, to learn, to discover new data which, in turn, lead us to develop new concepts” (Rosenzweig, 1982, p. 48). Thus, diagnosis has always entailed both explanatory and descriptive aspects, which, in their mutual interactive functions,