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What Is Trauma?

We throw the term around, but what does it really mean?  This is an introduction to trauma and its various forms.  

Definitions of trauma vary widely across domains of study.  These definitions are synthesized from several dictionary listings and mental health resources that exemplify the most current understanding in the identification and treatment of trauma

Slide defining trauma with two key points: 1) Trauma as an overwhelming, distressing event or condition that impacts the nervous system, and 2) The long-term mental, emotional, and physical effects of traumatic experiences. Background features green tropical leaves and calming tones, visually aligned with trauma-informed care and healing themes.

trauma /ˈtrômə/

1.  an event or condition that is experienced as distressing or disturbing and overwhelms an individual’s nervous system.

2.  the lasting negative impacts of traumatic experiences on mental, emotional and physical well-being. 

Types of Trauma - Shock Trauma vs. Complex Trauma

These two forms of trauma are not mutually exclusive.  In fact, complex trauma makes us more vulnerable to shock trauma.  AND, shock trauma may reactivate latent complex trauma that was not problematic before the event.

Educational slide comparing shock trauma and complex trauma. Shock trauma, also known as PTSD, is described as a single overwhelming event, while complex trauma, or C-PTSD, involves developmental, intergenerational, and cultural trauma. The slide explains key differences in symptoms, causes, and developmental impact, with a tropical leaf background that visually supports trauma-informed and healing themes.

Shock Trauma (PTSD)

Shock trauma, also known as Post-Traumatic Stress Disorder (PTSD), results from an event that overwhelms a person’s ability to react and complete a survival response.  These are events that are perceived as life-threatening (to self or other).  The disruption of a threat response mainly involves the brain stem.  Treatments therefore, are concerned with reengaging and completing autonomic (non-voluntary) reactions that are outside of the direct control of the prefrontal cortex.  

Examples of events that can lead to shock trauma (PTSD)

Signs and Symptoms of Shock Trauma (PTSD)

Complex Trauma (C-PTSD)

Complex trauma is by definition more complex.  In complex trauma, the traumatic condition is ongoing or pervasive in nature.  Even more complex is when these conditions are the backdrop to our childhood and adolescent development.  Our entire identity, nervous system, and way of relating to the world are formed around these traumatic conditions.  In NARM we call these conditions that fail to meet our developmental needs, environmental failures.  Neccessarily, the threat is to our sense of self.  That said, the threat may also have been physical, making symptoms of PTSD engrained in who we take ourselves to be.

Examples of events that can lead to complex trauma (C-PTSD)

Signs and Symptoms of Complex Trauma (C-PTSD)

Comparison of PTSD and C-PTSD symptoms, including sense of threat, avoidance, re-experiencing, interpersonal difficulties, negative self-concept, and affect dysregulation

Adverse Childhood Experiences (ACEs)

The Adverse Childhood Experiences (ACEs) study was conducted jointly by the CDC and Kaiser between 1995 and 1997.   By analyzing mountains of patient data and conducting interviews, they discovered the correlation between ACEs and some alarmingly negative outcomes in all areas of life including physical, mental, and social health.  Even more significant is that these experiences are cumulative or compounded.  The more of these that we have experienced, the worse the outcomes.

What are ACEs?

The ACEs study identified ten conditions or experiences that had the strongest correlation to negative outcomes. I’ll add here that all ACEs are examples of developmental trauma or attachment trauma.  All trauma that happens in childhood, even if it is a shock trauma at the time, is developmental trauma because it happened during the developmental period.  When the nervous system and sense of self develops around (adapts to) these conditions, the impacts are systemic and pervasive with no reference point of wellness before the trauma.

List of ACEs including physical, sexual, and emotional abuse; physical and emotional neglect; mental illness in the household; violence against mother; incarcerated family member; alcoholism or substance abuse; and parental divorce

The 10 ACEs

Outcomes Associated with Adverse Childhood Experiences

Here are the outcomes the Kaiser-CDC ACEs study linked to these detrimental conditions (in NARM, environmental failures).  The outcomes that the ACEs study failed to mention are much more subjective and will be addressed in the next section (Impacts of Developmental Trauma).

Infographic of outcomes associated with Adverse Childhood Experiences (ACEs) and toxic stress including chronic health conditions (heart disease, stroke, asthma, cancer, kidney disease, diabetes, obesity, COPD), health risk behaviors (smoking, alcohol use, substance misuse, inactivity, sexual risk behaviors, suicidal thoughts), social outcomes (lack of insurance, unemployment, less education), and mental health conditions (depression, substance use disorder)

Chronic Health Conditions

Health Risk Behaviors

Social Outcomes

Mental Health Outcomes

Impacts of Developmental Trauma

Again, the outcomes of ACEs are cumulative.  In the graphic below, we can see how ACEs fit into the broader social and historical context.  ACEs arise from generational and historical trauma which then shape the social and local conditions of the environment.  In other words, it didn’t start with you…or even your parents.

The Mechanism by Which ACEs Influence Health and Well-Being Throughout the Lifespan

Again, the outcomes of ACEs are cumulative.  In the graphic below, we can see how ACEs fit into the broader social and historical context.  ACEs arise from generational and  historical trauma which then impact and shape the social and local conditions of the environment.  In other words, it didn’t start with you…or even your parents.

ACE Pyramid chart illustrating the impact of Adverse Childhood Experiences (ACEs) on health and well-being across the lifespan, from generational trauma and social conditions at the base to early death at the top, highlighting stages such as disrupted neurodevelopment, health risk behaviors, and cognitive impairment.

The ACEs Pyramid (from the bottom up)

The ACEs Pyramid Statistics

What Happens in the Nervous System

The graphic below is one I adapted to include/emphasize the nervous system impacts of developmental trauma.  It is adapted from a classic polyvagal chart that focused on shock trauma responses and language.

Polyvagal chart illustrating trauma responses: fawn (codependency, people-pleasing), flight (panic, anxiety, avoidance), fight (rage, anger, frustration), freeze (dissociation, depression), dorsal vagal (hopelessness, self-shaming), and ventral vagal (ease, compassion). The chart shows increasing disconnection from social engagement to overwhelm, and how shock trauma differs from developmental trauma, highlighting difficulties in emotional regulation and relational challenges in C-PTSD.

POLYVAGAL THEORY

In an attempt to distill a very complex topic, I’ll limit this section to the parts of the autonomic nervous system and how they might be distorted by trauma.  When an actual or perceived threat occurs, the “normal”, or “healthy” wave of sympathetic arousal is disrupted.   If we are able to return to the normal wave after a threat, then there is no lasting trauma.  In complex trauma, we may experience very complex patterns and combinations of these responses. 

Sympathetic

This what we know of as FIGHT or FLIGHT.  I’ve added FAWN here as another option that happens in a state of arousal as a result of complex trauma.  Sympathetic arousal is associated with increased heart rate, decreased digestion and immune function, and dilated pupils.  In other words, all energy expenditure in the body is rallied for action to either avoid or protect from threat.  The statements that represents this state, depending on the intensity of the arousal are “I CAN,” or “I MUST.”

Parasympathetic

The parasympathetic nervous system has two branches that are mediated by the vagus nerve and serve very different functions.

Ventral Vagal

Also know as REST and DIGEST or the SOCIAL ENGAGEMENT SYSTEM, the ventral (frontal) branch of the vagus nerve is ideally where we spend most of our time.  It is characterized by a calm alertness.  Digestion and immune function are at their optimum capacity.  Energy expenditure supports our inclination toward exploration, curiosity and connection in the present moment.  The statement that represents the ventral vagal state is, “I MAY.”   As in, if I want to.

Dorsal Vagal

The dorsal (back) branch of the vagus nerve provides the FREEZE response.  Freeze is what happens when we have (or believe we have) no other option.  It is a total system shut down and energy conservation.  The barest minimum of energy is expended to maintain life support.  It is meant to be very time-limited and is, in itself, life-threatening when it continues too long.   In the world of critters, we know this as “playing dead” but in humans, it is more commonly associated with numbness, depression, and dissociation.  The statement that represents the dorsal vagal state is, “I CAN’T.”

Attachment Theory

Attachment theory, developed by John Bowlby,  posits that the quality of our attachment with our primary caregiver(s) has significant and lasting impacts on how we relate to ourselves, other people, and the world.  The attachment serves shifting purposes as a child moves through developmental phases.  Failures or disruptions to meeting the attachment needs at various developmental stages give rise to what some call attachment styles.   In NARM, we call these Adaptive Survival Styles.  Each of these styles has tendencies toward certain patterns of arousal/shutdown or tension/collapse.  

Commonly Missed Signs of Developmental Trauma

The severity and pervasiveness of developmental/attachment trauma exists on a continuum from mild disruption of development, to profound cognitive, affective, and relational deficiencies.  Listed below are some common challenges that we might not think of impacts of trauma.  It is a rare one among us who escapes childhood having all of their developmental needs perfectly met.

List of commonly missed signs of developmental trauma, including inner critic, overwhelm, limiting beliefs, fear of failure, perfectionism, conflict avoidance, imposter syndrome, difficulty speaking up, people-pleasing, high sensitivity to anger, reactivity to feedback, difficulty acknowledging needs, difficulty setting boundaries, health problems related to stress, empathy challenges, chronic resentment, difficulty delegating, and disorganization

In Closing...

Thanks for sticking with me.  I hope this (not so brief) introduction to trauma has been clarifying.  In the future, this material will be part of a course on trauma-informed coaching.   If you are seeking support or are interested in learning more about healing and trauma, schedule a complementary consultation.

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