Dysregulation

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

How the Body Keeps the Score and Neuroscience of Trauma in the Body

The influential work of Bessel van der Kolk (2014) has profoundly shaped contemporary trauma theory by articulating the deep neurobiological and somatic imprints trauma leaves on the body. Van der Kolk emphasizes that traumatic experiences are not merely psychological events but profoundly embodied phenomena, reflected and stored throughout the nervous and somatic systems long after

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

Science of Toxic Stress and the ACE Study

A cornerstone contribution to the Psychotrauma field came from public health research into Adverse Childhood Experiences (ACEs) and their lifelong effects. The landmark ACE Study, conducted by Felitti et al. (1998), surveyed over 17,000 adults and found a striking dose-response relationship between childhood adversities and subsequent health outcomes. In brief, the more types of adverse

Body of Knowledge of Psychotraumatology

The Adaptive Information Processing (AIP) Model: The pathogenic Memory

Definition of AIP The Adaptive Information Processing (AIP) Model, formulated by Francine Shapiro, serves as the foundational theoretical framework for EMDR therapy (Shapiro, 2018). It posits that the human brain possesses an innate physiological system designed to process experiences and integrate them adaptively, much like how the body heals physical injuries (Shapiro, 2007; Rydberg et

Body of Knowledge of Psychotraumatology

Theory of Structural Dissociation and Trauma-Related Dissociation

The Theory of Structural Dissociation, developed by Onno van der Hart, Ellert Nijenhuis, and Kathy Steele (2006), provides a comprehensive framework for understanding dissociation as a fundamental consequence of trauma. This theory offers a detailed conceptualization of how traumatic experiences, particularly chronic or developmental trauma, fragment an individual's personality into distinct psychological structures or parts,

Body of Knowledge of Psychotraumatology

Understanding the Window of Tolerance in Trauma Theory

The Window of Tolerance, a concept developed by psychiatrist Dan Siegel (1999), describes the optimal emotional zone within which an individual can effectively manage life's ups and downs. Within this "window," a person experiences emotions at a level that feels manageable—they are neither overwhelmed nor numbed out. This state allows individuals to remain connected, regulated,

Evidence-Based Trauma Therapies and Models

Criteria for Evaluating Trauma Therapies

Selecting appropriate therapeutic interventions in psychotraumatology requires clearly defined criteria that ensure treatments are effective, clinically sound, ethically responsible, and culturally responsive. This section delineates the essential criteria used to evaluate and select trauma therapies, including empirical support, neurobiological coherence, and ethical and cultural considerations. 2.1 Empirical Support (Efficacy vs. Effectiveness) Evaluating the empirical support

Evidence-Based Trauma Therapies and Models

Deep Brain Reorienting (DBR)

Deep Brain Reorienting (DBR), developed by psychiatrist Frank Corrigan, is a specialized trauma therapy explicitly designed to address deep-seated trauma impacts at the subcortical, neurophysiological level. DBR is particularly suitable for trauma marked by intense emotional and somatic dysregulation, chronic dissociation, and unresolved survival-based responses. Foundational Principles DBR is grounded in trauma neuroscience, specifically targeting

Evidence-Based Trauma Therapies and Models

Finding Solid Ground – Stabilization Program for Trauma-Related Dissociation

Overview Finding Solid Ground is a structured, psychoeducational stabilization program specifically designed for individuals with trauma-related dissociation. Developed by Dr. Bethany Brand, Dr. Ruth Lanius, and other experts in dissociation, it provides a step-by-step, skills-based framework that can be delivered in group or individual formats. Its goal is to help clients strengthen safety, self-regulation, and

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

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,

Evidence-Based Trauma Therapies and Models

Trauma-Sensitive Yoga (TSY) / Trauma-Informed Yoga

Overview Trauma-Sensitive Yoga (TSY) is an evidence-supported, body-based intervention adapted specifically for trauma survivors. Originating at the Trauma Center in Brookline, MA (Bessel van der Kolk, David Emerson, Jenn Turner), TSY is rooted in hatha yoga but modified to prioritize choice, safety, and interoceptive awareness over performance or achievement. It is now practiced globally in

Neurobiology of Trauma

Autonomic Nervous System and Polyvagal Theory

Another crucial physiological component in trauma is the autonomic nervous system (ANS), which governs involuntary bodily functions and modulates states of arousal and rest. The ANS is divided into two primary branches: the sympathetic nervous system (associated with fight-or-flight responses) and the parasympathetic nervous system (linked to rest, digestion, and repair). Trauma causes profound dysregulation

Neurobiology of Trauma

Hypothalamic–Pituitary–Adrenal (HPA) Axis

Trauma also provokes enduring changes in the body’s primary stress circuitry, the HPA axis. The HPA axis governs the release of stress hormones (like cortisol and adrenaline) in response to threat. In acute trauma, the HPA axis kicks into high gear – the hypothalamus releases corticotropin-releasing hormone (CRH), the pituitary releases ACTH, and the adrenal

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

Neurobiology of Trauma

Sympathetic Nervous System & Catecholamines

Trauma acutely activates the sympathetic nervous system, which is responsible for the body’s immediate fight-flight-freeze response. This system rapidly mobilizes survival energy through the release of catecholamines, primarily adrenaline (epinephrine) and norepinephrine (NE). These neurochemicals increase heart rate, dilate pupils, redirect blood flow to muscles, and sharpen sensory input—preparing the organism to react to danger

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,

The Triphasic Model for Treating Trauma

Phase Two: Trauma Memory Processing

Once stable safety, emotional regulation, and therapeutic trust have been firmly established, the patient moves into the second phase of trauma recovery: trauma memory processing. This phase involves safely accessing, processing, and integrating traumatic memories to reduce their emotional intensity and cognitive fragmentation, ultimately promoting healing, coherence, and resolution (Herman, 1992; Courtois & Ford, 2013).

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

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

Vicarious and Secondary Trauma

Definition and Identification (Impact on Caregivers, Therapists, First Responders) Vicarious trauma, also known as secondary trauma, refers to the emotional and psychological impact experienced by individuals who regularly support or provide care to trauma survivors. Rather than resulting from direct trauma exposure, vicarious trauma emerges indirectly through empathic engagement, continual exposure to traumatic narratives, or