JOHN M. OLDHAM
Baylor College of Medicine, Houston, USA
Personality disorders (PDs) have appeared in every edition of the American Psychiatric Association Diagnostic and Statistical Manual of Mental Disorders (DSM). With the advent of DSM-5, support has increased for a new dimensional model, to better suit the variability of pathological personality profiles in the population, in contrast to the traditional and more familiar categorical system. An Alternative Model for DSM-5 Personality Disorders (AMPD) was therefore developed, situated in Section III (Emerging Measures and Models) of DSM-5. The development of this model will be described and the ways in which it compares to the Research Domain Criteria of the National Institute of Mental Health, and to the developing PD diagnostic system proposed for the 11th Edition of the International Classification of Diseases, will be discussed. Borderline Personality Disorder will be conceptualized and described utilizing the AMPD, as an example of this new approach.