ABSTRACT
A well-defined, consensual understanding of borderline personality has been a long time in the making. In 1938, Stern first used the term “borderline” in reference to patients who appeared to occupy the border between neurosis and psychosis. Manysubsequent early writings explored the idea of a core or latent psychosis (Hoch &Polatin, 1949; Zilboorg, 1941), more aptly called borderline schizophrenia (and later classified as schizotypal personality disorder; Spitzer, Endicott, & Gibbon, 1979).
