What is it about?
Many people who lived through years of abuse, humiliation, or control (in childhood, in violent relationships, in coercive groups) are diagnosed with Borderline Personality Disorder, when what they actually have is Complex PTSD. This article explains the difference. In Borderline Personality Disorder, the sense of self is fragmented, split into contradictory pieces. In Complex PTSD, the self remains whole but becomes "occupied": the victim internalizes the aggressor's voice and verdict, which start to operate as an internal law dictating what they may feel, want, or believe about themselves. I call this "psychic colonization." Using two detailed clinical cases, the article shows how this occupation works and why treatment must aim at restoring the person's authorship over their own life, not just managing symptoms.
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Why is it important?
Misdiagnosis has real consequences. When survival adaptations to prolonged abuse are mistaken for personality defects, patients are treated as the source of their own suffering, and therapies target behavior regulation instead of the traumatic bond. Complex PTSD only entered official classification recently (ICD-11), and clinicians still lack conceptual tools to distinguish it from borderline presentations. This article offers such a tool (the concept of psychic colonization) grounded in psychoanalytic theory (Ferenczi, Winnicott, Bion, Bollas) and in clinical experience. The distinction is not only diagnostic but ethical: it changes how these patients are seen, heard, and treated.
Perspectives
This concept was born in my consulting room, working with survivors of domestic violence and adults raised by severely dysregulated parents — in São Paulo and with Brazilians living abroad. What struck me was that some patients did not simply remember their trauma; they seemed to live inside its logic, judging themselves through the aggressor's eyes. Naming this as colonization, rather than pathology, often marks the beginning of change.
Psychologyst Bruna Lima
Pontificia Universidade Catolica do Parana
Read the Original
This page is a summary of: The colonized psyche: A psychoanalytic differentiation between complex posttraumatic stress disorder and borderline personality disorder., Psychoanalytic Psychology, July 2026, American Psychological Association (APA),
DOI: 10.1037/pap0000616.
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