Reconceptualization of borderline conditions through the lens of the alternative model of personality disorders.

Borderline (BPD) and schizotypal personality disorder (SPD) were introduced in the Diagnostic and Statistical Manual of Mental Disorders, Third Edition (DSM-III). However, the clinical differentiation of the 2 diagnoses (e.g., psychotic-like features) was challenging for diagnostic classification and clinical management. With the introduction of the alternative model for personality disorders (AMPD) in DSM-5 Section III, a dimensional approach...