concept
Attachment Theory
Bowlby–Ainsworth framework describing how early caregiver relationships shape internal working models of self, others, and safety across the lifespan.
Read the primary articleArticles that reference Attachment Theory
23 articles in the library.
Body of Knowledge of Psychotraumatology
Affective Neuroscience
Affective neuroscience, as conceptualized by Jaak Panksepp, provides valuable insights into trauma by focusing on the neurobiological foundations of emotions. Panksepp (1998) identified seven primary emotional systems in the mammalian brain—SEEKING, FEAR, RAGE, LUST, CARE, PANIC/GRIEF, and PLAY—each rooted in distinct neural circuits that are evolutionarily conserved across species. In trauma-informed care, three of these
Body of Knowledge of Psychotraumatology
Attachment Styles and Their Relationship to Trauma
Attachment theory identifies four primary attachment styles—secure, anxious-preoccupied, dismissive-avoidant, and disorganized (also referred to as fearful-avoidant)—each reflecting distinct ways in which individuals relate emotionally and behaviorally to caregivers and later significant others (Ainsworth & Bowlby, 1991). Secure Attachment Individuals with a secure attachment style tend to exhibit comfort with both intimacy and autonomy. They generally maintain
Body of Knowledge of Psychotraumatology
Attachment Theory and Trauma
Attachment theory, initially developed by John Bowlby, has evolved to incorporate neurobiological findings and to illuminate the impact of early relational trauma on development. A secure attachment in infancy (formed through consistent, attuned caregiving) is now understood as a primary protector against the harmful effects of stress (Schore, 2001). By contrast, trauma in the context
Body of Knowledge of Psychotraumatology
Dysregulation as a Core Mechanism
A common thread woven throughout trauma-related disorders is the phenomenon of dysregulation—the impairment in managing emotional and physiological states. Contemporary trauma theorists now widely regard dysregulation of arousal and affect as central to understanding the persistence of trauma symptoms (Van der Kolk, 2014). Individuals who have experienced trauma often struggle to maintain emotional stability, fluctuating
Body of Knowledge of Psychotraumatology
Interpersonal Neurobiology
Interpersonal Neurobiology (IPNB), developed and popularized by psychiatrist Daniel J. Siegel, is an interdisciplinary framework that seeks to understand human experience through the interactions between biology, psychology, and interpersonal relationships (Siegel, 1999, 2012). Central to IPNB is the principle that human well-being emerges from integration—the process by which separate elements of the mind and brain
Body of Knowledge of Psychotraumatology
Parts Theory, Ego-State Theory, and Structural Dissociation: Differences, Overlaps, and Clinical Implications for Trauma
Theories emphasizing multiplicity within the personality, such as Parts Theory (Internal Family Systems - IFS), Ego-State Theory, and the Theory of Structural Dissociation, have significantly enriched contemporary trauma treatment by acknowledging internal fragmentation and promoting integration as central therapeutic goals (Fisher, 2017; Schwartz, 2021; Van der Hart et al., 2006). Parts Theory (Internal Family Systems)
Body of Knowledge of Psychotraumatology
Polyvagal Theory
Polyvagal Theory, developed by neuroscientist Stephen Porges, has significantly transformed contemporary understandings of trauma, emphasizing the critical role of the autonomic nervous system in trauma responses and healing (Porges, 2011). At its core, Polyvagal Theory provides a biological framework for understanding safety, danger, and life-threatening states, fundamentally reshaping how clinicians conceptualize and address trauma. Foundations
Evidence-Based Trauma Therapies and Models
Eye Movement Desensitization and Reprocessing (EMDR)
Eye Movement Desensitization and Reprocessing (EMDR) therapy, originally developed by Francine Shapiro in the late 1980s, is a structured, integrative psychotherapeutic approach specifically designed to alleviate distress associated with traumatic memories. EMDR uniquely integrates cognitive, emotional, somatic, and neurological components, employing bilateral stimulation—most commonly eye movements—to facilitate the reprocessing of traumatic memories. Foundational Principles of
Evidence-Based Trauma Therapies and Models
Internal Family Systems (IFS) Therapy
Internal Family Systems (IFS) therapy, developed by Richard Schwartz in the 1980s, has emerged as a highly effective and innovative approach for treating complex trauma and related psychological disorders. IFS conceptualizes the psyche as comprising distinct internal "parts," each embodying unique roles, emotions, and beliefs that are formed through developmental experiences, particularly those involving trauma.
Evidence-Based Trauma Therapies and Models
Neurofeedback and Biofeedback
Neurofeedback and biofeedback are physiologically targeted interventions that train regulation of the nervous system by providing real-time feedback on brain or body signals. In psychotraumatology, they are used to restore autonomic flexibility, dampen hyperarousal, reduce dissociation, and improve attention/affect regulation—capacities often eroded by trauma. Foundational principles Operant conditioning of physiology: clients learn to increase desirable
Evidence-Based Trauma Therapies and Models
Neurosequential Model of Therapeutics (NMT)
Overview The Neurosequential Model of Therapeutics (NMT), developed by Dr. Bruce Perry, is a developmentally informed, neurobiologically grounded framework for assessing and treating children, adolescents, and adults with histories of trauma, neglect, and disrupted attachment. NMT is not a standalone therapy, but rather a clinical map that guides the selection, sequencing, and timing of interventions
Evidence-Based Trauma Therapies and Models
Polyvagal Theory–Informed Therapies
Polyvagal Theory–Informed Therapies (PVTT) are trauma treatment approaches based on the polyvagal theory developed by Stephen Porges (2011, 2017). They integrate an understanding of the autonomic nervous system’s hierarchical responses to threat and safety into therapeutic interventions, aiming to restore nervous system flexibility, emotional regulation, and a sense of safety. Foundational Principles Polyvagal theory posits
Evidence-Based Trauma Therapies and Models
Psychodrama for Trauma (Moreno), PBSP Psychomotor (Albert Pesso), and Contemporary Uses (van der Kolk)
Overview Psychodrama and PBSP (Pesso Boyden System Psychomotor) are experiential, enactment-based therapies that use role play, embodied movement, and structured scenes to repair attachment ruptures, rework traumatic memories, and restore agency. Bessel van der Kolk has highlighted these modalities—especially PBSP “structures”—as powerful for trauma integration when cognitive talk therapy stalls. Foundational principles Action + Embodiment:
Evidence-Based Trauma Therapies and Models
Somatic and Sensorimotor Psychotherapy
Somatic and Sensorimotor Psychotherapies represent trauma-informed approaches explicitly designed to engage and resolve trauma at the bodily level. These methodologies integrate principles of neuroscience, trauma theory, and somatic psychology to address physiological symptoms and somatic memory of trauma effectively. Foundational Principles Somatic psychotherapies view trauma as fundamentally embedded within the nervous system and body tissues,
Neurobiology of Trauma
Neurobiological Profiles: PTSD vs. Complex Trauma
Post-Traumatic Stress Disorder (PTSD) – Single-Event Trauma Response PTSD, typically associated with exposure to a single traumatic incident, presents a relatively consistent neurobiological profile. Neuroimaging studies indicate that individuals with PTSD exhibit heightened amygdala activation, reduced hippocampal volume, and diminished activity in the medial prefrontal cortex (mPFC)—regions essential for emotional regulation and contextual memory (Rauch
The Triphasic Model for Treating Trauma
Phase One: Safety and Stabilization
Safety and stabilization constitute the essential first phase of trauma recovery, fundamentally shaping the effectiveness of all subsequent therapeutic interventions. Given trauma’s inherent nature—characterized by chaos, overwhelm, loss of control, and feelings of unsafety—establishing a secure foundation is a non-negotiable prerequisite for successful healing (Herman, 1992; Courtois & Ford, 2013). Primary Objectives: Establishing Physical, Emotional,
Trauma
Complex Trauma (Complex PTSD)
Definition and Core Criteria: Chronic, Relational, and Developmental Aspects Complex trauma, commonly referred to as Complex Post-Traumatic Stress Disorder (Complex PTSD or C-PTSD), describes the pervasive and prolonged psychological consequences resulting from chronic, interpersonal, and often early-life traumatic experiences. Unlike single-event trauma, complex trauma typically involves ongoing situations characterized by relational betrayal, emotional and physical
Trauma
Developmental Trauma
Trauma Experienced During Key Developmental Stages (Childhood Neglect, Emotional or Physical Abuse) Developmental trauma encompasses prolonged, repeated, or severe traumatic experiences occurring during critical early developmental periods—particularly in infancy, childhood, or adolescence. Unlike single-event trauma, developmental trauma is inherently interpersonal, typically involving caregivers or other trusted individuals who are responsible for nurturing, safety, and emotional
Trauma
Existential-Religious Trauma
(Moral Injury, Transcendent, Existential, Religious Trauma, and Abuse of Consciousness) Definition and Core Concepts Existential-spiritual trauma encompasses psychological, emotional, spiritual, and relational wounds arising from experiences that profoundly disrupt an individual's core beliefs, ethical foundations, spiritual identity, or sense of existential meaning. This integrated trauma category includes previously distinct yet related concepts: Moral Injury: Psychological
Trauma
Intergenerational (Transgenerational) Trauma
Mechanisms of Trauma Transmission Across Generations Intergenerational trauma, also termed transgenerational trauma, describes how the psychological impacts of traumatic events are transmitted from one generation to another. Rather than experiencing the trauma firsthand, subsequent generations inherit the trauma's psychological, emotional, and physiological consequences through indirect but consequential mechanisms (Yehuda & Lehrner, 2018). Key mechanisms of
Trauma
Intrauterine & Pre‑Verbal Trauma
Defining the Concept Intrauterine trauma refers to stressors experienced prenatally—such as maternal stress, emotional distress, substance exposure, or prenatal medical complications—that can affect fetal development. Pre‑verbal trauma occurs before the acquisition of language, including birth trauma, early neglect, or abuse, which profoundly impacts implicit memory systems. Both operate outside conscious awareness and are carried in
Trauma
Overview of Trauma Types
Trauma, by its very nature, profoundly alters individuals’ psychological, emotional, physiological, relational, and even existential landscapes. Though all traumatic experiences share certain defining qualities—such as overwhelming the individual’s coping resources and shattering basic assumptions about safety and control—each trauma category also carries distinct impacts and considerations essential for tailored, effective treatment (Herman, 1992; Courtois &
Trauma
Post-Traumatic Stress Disorder (PTSD)
Definition and Examples (Single-Event) Post-Traumatic Stress Disorder (PTSD) is a clinical syndrome characterized by persistent emotional distress, intrusive symptoms, avoidance behaviors, and heightened physiological arousal, occurring after experiencing or witnessing a severely distressing or life-threatening event (American Psychiatric Association [APA], 2013). Typically associated with single, clearly identifiable traumatic incidents, PTSD commonly arises from situations such