A popular slang definition of the verb to split is "to depart," or "to leave." In this context, to split describes the occasional wish of a psychiatrist who may be mired in the chaos created by the behavior of a patient diagnosed with borderline personality disorder. The primary definition of to split is "to divide sharply or cleanly."
For clinicians, the assiduous and sustained resistance to change common in patients with narcissistic personality disorder (NPD) has been especially noticeable and trying. However, until recently the natural course of NPD has not received much attention in the clinical and empirical literature, and there is very little documented knowledge about the factors that might contribute to changes.
Psychopathy (renamed antisocial personality disorder) is marked by persistent violations of social norms, including lying, stealing, truancy, inconsistent work behavior and traffic arrests.
