The Relationship between Defense Patterns and DSM-5 Maladaptive Personality Domains

Area of Science:

• Psychology
• Psychiatry
• Psychoanalytic Theory

Background:

• Extensive research links defense mechanisms (DM) and personality traits.
• No prior studies have investigated DM's predictive power for DSM-5 maladaptive personality domains.
• This study addresses this gap by examining DM and DSM-5 personality domains.

Purpose of the Study:

• To investigate the relationship between defense mechanisms and DSM-5 maladaptive personality domains in adults.
• To determine if specific defense mechanisms predict dysfunctional personality variants.
• To explore defense patterns within the alternative DSM-5 model for personality disorders.

Main Methods:

• 328 adults (18-64 years) completed DM and maladaptive personality domain assessments.
• Regression analyses were employed to identify predictive relationships.
• Key maladaptive domains analyzed: negative affectivity, detachment, antagonism, disinhibition, and psychoticism.

Main Results:

• Immature defense mechanisms positively predicted maladaptive personality domain scores.
• Mature defense mechanisms generally correlated with better personality functioning.
• Distinct defense patterns significantly predicted maladaptive personality domains within the DSM-5 framework.

Conclusions:

• Defense patterns are integral to personality and personality disorders.
• Increased use of immature defenses negatively impacts personality development.
• Reduced use of mature defenses is associated with poorer personality functioning.