The researches conducted by the III Centro di Psicoterapia Cognitiva in Rome in the range of the cognitive therapy schools (APC, SPC, SICC) produce convincing proofs that an impairment in understanding mental states and in reflecting on them (i.e. metacognition) is an important factor in personality pathologies. Researches data highlight that metacognition is a complex ability, that is made of different sub functions and that impairments in specific metacognitive sub functions orient the pathology of Personality Disorders in a different way. In this work the different moments of our research are retraced, distinguishing between hypothesis construction, instruments construction and hypothesis verification.
Keywords: Cognitive psychotherapy, personality disorders, metacognition