Elucidating DSM-5 and ICD-11 Diagnostic Features of Borderline Personality Disorder Using Schemas and Modes.

Background: Borderline personality disorder (BPD) comprises a heterogeneous constellation of problems operationalized in the DSM-5 and the forthcoming ICD-11. In schema therapy, schemas and modes are employed to conceptualize and treat these problems.

Aim: The current study investigated whether the 9 diagnostic BPD features are associated with schemas and modes.

Method: Psychiatric outpatients with predominant BPD features (n = 142; 68% females) were administered the Structured Clinical Interview for DSM-IV Axis II (SCID-II) and self-report inventories for schemas and modes. Associations were investigated by means of bivariate point-biserial correlations and multiple logistic regression analysis.

Results: BPD features were largely associated with conceptually related schemas and modes. Consistent with the schema therapy literature and previous research, we found schemas of Abandonment/Instability and Mistrust/Abuse along with modes of Angry/Enraged Child, (internalized) Punitive Parent, and Impulsive Child to uniquely predict thematically related BPD features including fear of abandonment, self-destructiveness, feelings of emptiness, stress-related paranoid ideation, inappropriate anger, and impulsivity.

Conclusion: Most of the 9 BPD features were related to conceptually meaningful schemas/modes, suggesting that BPD is composed of dormant themes along with salient affective-behavioral responses. Consequently, individual BPD features may be differentially conceptualized and targeted in therapy by means of schemas and modes.