What dimensions underlie cluster B personality disorders?
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Updated: Oct 10, 2026

Use of a Psychophysiological Script-driven Imagery Experiment to Study Trauma-related Dissociation in Borderline Personality Disorder
Published on: March 8, 2018
1Department of Psychiatry, McGill University, Montreal, Quebec, Canada.
Abstract:
This report presents a conceptual model of the relationships between personality dimensions and the four personality disorders listed in the B cluster on axis II. The hypothesis will be developed that while impulsivity is the common dimension underlying all four disorders, differences between the categories reflect the severity of impulsive traits, interactions with other personality dimensions, the effects of gender, and the influence of culture. Clinical and research implications of the model are then described.
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