Abstract
The (possible) psychological and metapsychological meaning of Theodore Millon's Biosocial and Evolutionary Models. Personality disorders (PDs) had obtained a great institutional importance from its inclusion in the Axis II of the DSM-III. The main author of this process is Theodore Millon, who proposed two personality disorders models, the Biosocial-Learning Model in 1969, and the Evolutionary Model in 1990. Both models define a PD like an inflexible, selfperpetuating and unstable interpersonal coping pattern. The PDs institutional importance would be due to the psychological virtues of the above mentioned definition, but perhaps it would be surprisingly possible to delineate a parallelism between such Millon's definition and Freud's concept of symptoms or defense mechanismsn ever-ending substitution. The Evolutionary Model adds a metapsychology to the PDs that would also have possible similitudes to Freudian metapsychology: both could be biology-based ideologies that would recognize the existence of unresolved conflicts as well as they would obscure their historical and political nature.
