Somatic Experiencing: Healing Trauma Through the Body

Claire* comes to my practice in Nantes with a list of symptoms her doctor can't explain: chronic neck tension, startling at the slightest noise, a permanent knot in her stomach. She's seen a gastroenterologist, a rheumatologist, and had an MRI. All tests are normal. "They tell me it's all in my head," she confides with palpable weariness. What Claire's body is expressing is unresolved trauma — and that's where Somatic Experiencing comes in.

Somatic Experiencing (SE), developed by Peter Levine, is a psychotherapeutic approach based on a simple but revolutionary observation: trauma doesn't reside in the event itself, but in the nervous system. When a person experiences a threatening situation, their body mobilizes considerable energy to flee or fight. If this energy can't be discharged — because the person froze, felt helpless, or the situation resolved too abruptly — it remains trapped in the body. It's this blocked energy that produces traumatic symptoms.

As a CBT-trained practitioner in Nantes, I regularly integrate SE principles into my practice. Not as a replacement for CBT, but as a valuable complement that reaches layers of suffering that cognitive work alone doesn't always access.

The Foundations of Somatic Experiencing According to Peter Levine

Observing the Animal World

Peter Levine built his theory from a fascinating observation: wild animals, though exposed daily to mortal threats, don't develop post-traumatic stress. A gazelle chased by a cheetah, if it survives, goes through a phase of intense trembling, literally shakes its body, then resumes normal life as if nothing happened.

This phenomenon, which Levine studied for over forty years, reveals a natural discharge mechanism that humans have largely lost. Our neocortex — the part of the brain responsible for rational thought — interferes with this natural process. We inhibit our trembling, hold back our tears, "stay in control." And in doing so, we imprison traumatic energy in our bodies.

The SIBAM Model

Levine developed the SIBAM model to map the traumatic experience across all its dimensions:

• Sensation: bodily perceptions (warmth, tension, tingling, numbness)
• Image: visual representations, flashbacks, fragmented memories
• Behavior: motor responses, involuntary gestures, defensive postures
• Affect: emotions linked to the trauma (terror, rage, shame, helplessness)
• Meaning: beliefs and interpretations the person constructs around the event

In a healthy, integrated experience, these five channels function coherently. In trauma, they dissociate. A person may have intense sensations (palpitations, sweating) with no associated image or meaning. Or conversely, remember a traumatic event perfectly without feeling the slightest emotion — a form of dissociation I frequently encounter in my consultations in Nantes.

The Autonomic Nervous System and the Window of Tolerance

SE is grounded in understanding the autonomic nervous system (ANS), particularly Stephen Porges' polyvagal theory. The ANS oscillates between three states:

The ventral vagal state (safety and social connection): the person feels calm, available, capable of connecting with others. This is the optimal state. The sympathetic state (mobilization): the heart races, muscles tense, adrenaline flows. This is the fight-or-flight response. The dorsal vagal state (immobilization): the system collapses. The person freezes, feels numb, disconnected. This is the last-resort response to a threat perceived as insurmountable.

Trauma occurs when the nervous system remains stuck in one of these emergency states, unable to return to the window of tolerance. Claire, my patient with unexplained pain, lived in permanent oscillation between sympathetic hyperactivation (startle responses, excessive vigilance) and dorsal collapse (crushing fatigue, mental fog).

Core Techniques of Somatic Experiencing

Titration: Advancing in Homeopathic Doses

Titration is SE's cardinal principle. Unlike approaches that directly confront the person with their trauma (prolonged exposure, flooding), SE proceeds in tiny increments. The idea is to approach traumatic material in small doses, enough to activate the nervous system without overwhelming it.

Peter Levine uses the metaphor of a chemist handling nitroglycerin: you don't pour it all at once — you proceed drop by drop. Each micro-dose allows the nervous system to process and discharge a fragment of trapped energy.

In practice, this means the SE therapist never asks the patient to "tell everything that happened." They might simply invite the person to mention a peripheral detail of the event — the color of a wall, a sound heard in the distance — and observe what happens in the body at that moment.

Pendulation: The Natural Movement Between Contraction and Expansion

Pendulation is another fundamental concept. It describes the nervous system's natural movement between sensations of contraction (discomfort, tension, pain) and sensations of expansion (warmth, relaxation, lightness).

In trauma, this movement is frozen: the person remains stuck in contraction. The therapeutic work consists of restoring the capacity for pendulation by gently guiding attention between areas of comfort and discomfort in the body.

With Claire, we began by identifying her "somatic resources" — the places in her body that felt good, or at least neutral. Her feet on the floor. The warmth of her hands. From these safety anchors, we could progressively explore areas of tension without risking overwhelm.

Somatic Tracking: Listening to the Body's Language

Somatic tracking is the art of observing and following bodily sensations in real time. The therapist guides the person with questions like:

"When you think of that scene, what do you notice in your body?"
"That tension in your chest — does it have a shape? A temperature? A movement?"
"If you stay with that sensation for a few moments, what happens?"

This seemingly simple questioning produces remarkable effects. By paying kind and curious attention to their sensations, patients discover that they aren't static. They move, transform, shift. This discovery is therapeutic in itself: it restores the feeling that something can change.

Discharge and Neurogenic Trembling

One of SE's most distinctive aspects is the attention paid to discharge phenomena. When traumatic energy begins to release, the body may manifest involuntary responses:

• Trembling or muscle shaking
• Deep yawning
• Sensations of warmth or tingling
• Spontaneous movements (arms wanting to push, legs wanting to run)
• Tears without identifiable sadness
• Shivers running through the body

These manifestations, often surprising for the patient, are welcomed as positive signs. They indicate that the nervous system is completing the regulatory work it couldn't finish at the time of the trauma.

Marc*, a former military officer I work with, experienced leg tremors during a session that lasted several minutes. "It's like my legs wanted to run," he told me, astonished. His legs were literally completing the flight his body couldn't accomplish ten years earlier during an ambush.

The Complementarity Between Somatic Experiencing and CBT

Why Combine These Two Approaches?

CBT and Somatic Experiencing approach trauma through different but converging doors. CBT works primarily on cognitions (automatic thoughts, dysfunctional beliefs, schemas) and behaviors (exposure, behavioral activation, coping techniques). SE works on bodily sensations and autonomic nervous system regulation.

In my practice in Nantes, I've found that some patients respond beautifully to classic cognitive work. They identify their cognitive distortions, restructure their thoughts, and develop effective behavioral strategies. But others — particularly those with early trauma or trauma where the body was directly threatened — hit a glass ceiling. Their intellect understands, but their body continues to react.

This is exactly what Bessel van der Kolk described in "The Body Keeps the Score": trauma leaves an imprint on the body that sometimes resists exclusively verbal work. Integrating SE provides access to this somatic imprint.

The Integrative Model in Clinical Practice

Here's how I concretely articulate these two approaches in my practice:

Phase 1: Stabilization and Psychoeducation (CBT)

I always start with a classic CBT framework:

• Psychoeducation on trauma and the nervous system


• Learning emotional regulation techniques (diaphragmatic breathing, cardiac coherence, progressive muscle relaxation)


• Identifying automatic thoughts linked to trauma ("I'm in danger," "I can't trust anyone," "My body betrays me")

This phase lays the cognitive foundations needed. The patient understands what's happening to them, which already considerably reduces anxiety.

Phase 2: Somatic Exploration (SE)

Once stabilization is achieved, I introduce body work:

• Tracking sensations associated with traumatic memories


• Progressive titration toward difficult material


• Pendulation between resources and activation zones


• Accompanying neurogenic discharges

Phase 3: Cognitive and Behavioral Integration (CBT + SE)

The final phase combines both approaches:

• Cognitive restructuring in light of somatic experiences ("My body can defend itself, so I'm no longer helpless")


• Gradual in vivo exposure with monitoring of bodily responses


• Development of new beliefs anchored in bodily experience, not just logic

A Clinical Integration Example

Sophie*, 35, came to me for panic attacks while driving. She had been in a car accident three years earlier. Classic CBT work had identified her catastrophic thoughts ("A truck will hit me," "I'm going to die") and begun gradual exposure (sitting in the car while parked, then with the engine running, then on a quiet street, etc.).

But every attempt to drive on a busy road collapsed the cognitive work. Sophie knew intellectually she was safe. Her rational self-evaluations told her the risk was minimal. Yet her body froze: hands clenched on the wheel, breathing blocked, tunnel vision.

By integrating SE, we explored what was happening in her body at the moment of freezing. Sophie discovered an intense compression sensation in her chest and an impulse in her arms — they wanted to turn the wheel right, reproducing the avoidance gesture she couldn't make during the accident. By allowing this movement to complete in session (turning an imaginary wheel, feeling the strength in her arms), the bodily charge gradually released.

After six sessions combining SE and CBT, Sophie was able to resume driving on the highway. Not because she had "understood" cognitively that she was safe, but because her body had integrated it.

Indications for Somatic Experiencing

Simple and Complex Trauma

SE is particularly indicated for:

Simple trauma (single event): accident, assault, natural disaster, traumatizing surgery. SE often enables rapid resolution in a few sessions, as the traumatic energy is concentrated around an identifiable event. Complex trauma (repeated, relational): childhood maltreatment, emotional neglect, prolonged domestic violence. The work takes longer as the nervous system has been shaped by years of chronic stress. In these cases, the SE + CBT combination comes into its own. Developmental trauma: early adverse experiences occurring before the child has language. These traumas are often inaccessible through purely verbal approaches, as they are encoded as procedural memory (in the body) rather than declarative memory (in words).

Symptoms That Point Toward SE

Certain signs suggest that body-based work would be beneficial:

• Medically unexplained physical symptoms (chronic pain, digestive problems, persistent fatigue)
• Exaggerated startle responses
• Dissociation (feeling "beside yourself," derealization)
• Emotional regulation difficulties despite good cognitive work
• Feeling of "knowing" intellectually but not "feeling" the change
• Body flashbacks (the body reacts without the person understanding why)
• Freezing or paralysis in certain situations

Limitations and Precautions of Somatic Experiencing

What SE Does Not Replace

Somatic Experiencing is not a universal solution. It does not replace:

• Structured cognitive work for anxiety disorders with identifiable thought patterns
• Pharmacotherapy when indicated (severe depression, PTSD with suicidal ideation)
• Systematic behavioral exposure for specific phobias without a traumatic component
• Psychiatric follow-up for severe dissociative disorders

The Question of Therapist Training

An essential point of vigilance: SE requires specific and rigorous training. A therapist who "improvises" as an SE practitioner may, through carelessness, reactivate the trauma without knowing how to contain it. Titration, pendulation, managing discharges — all of this requires clinical expertise that can't be acquired by reading a book.

This is why, in my practice, I remain transparent with my patients about what I can offer and what would require referral to a certified SE practitioner for deeper somatic work.

Relative Contraindications

Direct somatic work should be approached with caution in certain contexts:

• Active psychotic disorders
• Severe structural dissociation
• Active unstabilized addiction
• Acute suicidal crisis phase

In these situations, stabilization (CBT, pharmacology, social support) must take priority before opening body work.

Self-Regulation Exercises Inspired by SE

Sensory Grounding

This exercise combines SE principles and CBT mindfulness:

Sit comfortably and feel your feet touching the floor

Bring your attention to the sensations in your feet: temperature, pressure, weight

Imagine that your feet have roots sinking into the ground

Stay with these sensations for 2 to 3 minutes

Notice if something changes in the rest of your body

This exercise activates the ventral vagus nerve and promotes a return to a state of safety. It's a frontline tool I recommend to all my traumatized patients.

The Resource-Oriented Body Scan

Unlike the classic mindfulness body scan, this scan is oriented toward areas of comfort:

Mentally scan your body from head to toe

Identify a spot that feels good or neutral (even small)

Bring all your attention to that spot

Describe it: temperature, texture, movement, color

Let this sensation naturally expand, without forcing

This "somatic resourcing" work trains the nervous system to find its way back to regulation. Practiced daily, it progressively strengthens the capacity for pendulation.

Voluntary Discharge Through Trembling

Inspired by David Berceli's work (TRE - Tension and Trauma Releasing Exercises) and compatible with SE principles:

Standing, slightly bend your knees

Maintain this position for 1 to 2 minutes until you feel muscle fatigue

Lie down and let your legs tremble naturally

Welcome the trembling without controlling or stopping it

After 5 to 10 minutes, gently stretch and rest

These neurogenic tremors reproduce the natural discharge mechanism observed in animals. They are not dangerous, but it is preferable to practice them for the first time in the presence of a therapist, especially with a history of trauma.

Trauma in the Body: What Research Tells Us

Advances in Neuroscience

Recent neuroscience research confirms Peter Levine's clinical intuitions. Brain imaging studies show that trauma alters the functioning of several brain structures:

• The amygdala: hyperactivated, it maintains a permanent state of alert
• The prefrontal cortex: underactivated, it loses its regulatory capacity
• The insula: interoceptive perception (awareness of bodily signals) is altered
• The hippocampus: memory consolidation is disrupted, explaining flashbacks and fragmentation of traumatic memory

SE, by working on interoceptive awareness and autonomic nervous system regulation, acts directly on these circuits. Preliminary studies show progressive normalization of amygdala activity and strengthening of prefrontal-limbic connections after SE treatment.

Somatic Memory

A central concept in SE is somatic memory or procedural memory. The body "remembers" traumatic events in the form of muscular patterns, defensive postures, conditioned autonomic responses. This memory is implicit: it activates without the person's awareness.

This explains why some people trigger panic responses in objectively safe situations — a smell, a sound, a touch vaguely resembling the original event is enough to reactivate the entire survival program.

CBT addresses this phenomenon through cognitive restructuring and exposure. SE adds an additional dimension by allowing the body to "rewrite" this procedural memory through new sensory experiences of safety and mastery.

How to Find a Practitioner and Get Started

Choosing the Right Professional

If you're considering work integrating Somatic Experiencing, here are some criteria:

• Verify that the practitioner has completed official SE training (minimum 3 years)
• Favor therapists who combine SE with a structured approach (CBT, EMDR)
• Ask in the first session how the practitioner works with the body
• Make sure you feel safe in the therapeutic relationship — this is the sine qua non of any somatic work

What to Expect in the First Sessions

The first SE sessions often resemble classic therapy sessions. The therapist takes time to understand your history, symptoms, and resources. They gradually introduce attention to the body, never forcing. Some patients are surprised by the apparent slowness of the process: "We just talked about the sensation in my shoulder for an hour?" But this slowness is the key to safety and effectiveness.

It's normal to feel intense emotions, fatigue, or conversely an unexpected sensation of lightness after a session. The nervous system is reorganizing, and that takes time and energy.

Toward a Truly Integrative Trauma Therapy

Peter Levine's Somatic Experiencing reminds us of a fundamental truth that Western psychotherapy long neglected: we are not just minds that think, but bodies that feel, react, and carry the imprint of every lived experience. Healing trauma requires honoring this bodily reality.

The complementarity with CBT offers a complete framework: CBT brings structure, cognitive tools, and the rigor of validated protocols. SE brings somatic depth, access to preverbal layers of experience, and the wisdom of the body.

Claire, my patient from the beginning, found peaceful sleep again after four months of integrative work. Her neck pain decreased by 80%. But what marked her most was this sentence she said to me one day: "For the first time in years, I feel present in my body. Before, I existed from the neck up. Now, I exist as a whole."

That is perhaps the most beautiful gift of Somatic Experiencing: not just healing trauma, but restoring the fullness of the experience of being alive.

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Names have been changed to preserve patient anonymity. Do you carry unexplained tensions or reactions that overwhelm you? Our AI assistant, available for free for 50 exchanges, can help you better understand your bodily responses and identify whether trauma work might benefit you. Try the assistant →