An empirical study of psychosis in borderline personality disorder

Abstract
To assess the nature and prevalence of psychotic symptoms in borderline personality disorder, the authors reviewed the cases of 33 patients meeting DSM-III criteria for boderline personality disorder, using both "narrow" and "broad" definitions of psychosis. Only eight patients displayed psychotic symptoms meeting the "narrow" DSM-III definition; in all of these cases, the symptoms appeared to be attributable to either severe drug abuse of major affective disorder, present simultaneously with boderline personality disorder. The remaining patients displayed only "broadly defined" psychotic symptoms or symptoms that appeared to be under voluntary control. The findings weigh against the assumption that boderline personality disorders lies "on the border" of classical psychotic disorders.

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