Identity diffusion refers to difficulty forming a stable, integrated sense of self across time and context. It is characterized by fragmented self-representations, inconsistent goals or values, and fluctuating self-appraisal. It is a core feature of borderline-spectrum personality organization and reflects impaired self-structure rather than deliberate role-shifting. ## Core Functions - Integration of autobiographical memory with self-concept - Stable representation of goals, values, and traits ## Key Components - Contradictory self-states - Unstable self-image - Poor continuity of identity ## Systems Interactions - Altered activity in medial prefrontal and default-mode regions - Reduced coherence across self-referential processing networks ## Clinical Relevance - Predicts affective instability and interpersonal volatility - Strongly associated with trauma-related developmental disruptions ## Related Topics - [[Borderline Personality Disorder]] - [[Self-Concept]] - [[Narrative Identity]]