Attachment Classification, Emotion Regulation, and Defense Mechanisms: An Integrative Narrative Review

Highlights: What are the main findings? Attachment styles are strongly linked to emotion regulation and specific defense mechanisms across the lifespan. Understanding a patient’s defensive patterns offers a window into their underlying attachment style in clinical settings. What are the implications of the main findings? Clinicians can individually tailor interventions by integrating attachment, defenses, and emotion regulation into assessment and treatment. A defense-informed approach provides clinicians with deeper insight into patients’ psychological functioning and supports the development of comprehensive, individualized therapeutic strategies. Attachment style and emotion regulation (ER) patterns intertwine. Securely attached individuals employ more adaptive ER strategies, while individuals with avoidant, preoccupied, and disorganized styles rely on less adaptive strategies. Defense mechanisms are part of an experience-near, observable construct that parallels implicit ER. The evaluation of a patient’s defense mechanisms may therefore be a means of identifying and understanding the patient’s attachment classification. This article synthesizes recent empirical research and theory to delineate relationships among attachment styles, ER, and defense mechanisms. It then examines how development and culture shape attachment, discusses assessment strategies, and offers clinicians guidance for assessing attachment through a defense mechanism orientation. This clinical technique may assist clinicians in informed assessment and treatment and underscores the benefits of further integration of attachment research with that of defense mechanisms.