KAP vs Somatic Experiencing
A side-by-side comparison: mechanism, evidence, the conditions each treats, philosophical roots, and where they actually disagree clinically.
At a glance
KAP
- Tradition
- Psychedelic
- Founder
- Various (Wolfson, Bennett) (2010)
- Evidence
- Guideline-recommended
- Focus
- Experiential + Processing
- Format
- Individual
- Duration
- Short-medium
Somatic Experiencing
- Tradition
- Somatic
- Founder
- Peter Levine (1997)
- Evidence
- RCT-supported
- Focus
- Somatic + Experiential
- Format
- Individual
- Duration
- Medium-term
How they work
KAP
Core mechanism: Ketamine-induced neuroplasticity + dissociative state creates window for psychotherapeutic processing and new learning
Ontology: Treatment-resistant conditions involve rigid neural patterns; ketamine disrupts rigidity and opens plasticity window
Somatic Experiencing
Core mechanism: Titrated pendulation between activation and resource states completes truncated survival responses trapped in the body
Ontology: Incomplete defensive responses (fight/flight/freeze) remain bound in the nervous system as undischarged survival energy
Conditions treated
2 shared · 2 KAP-only · 4 Somatic Experiencing-only
Both treat
Only KAP
Only Somatic Experiencing
What each assumes — and misses
KAP
Philosophical roots: James (varieties of religious experience — altered states as data); Grof (non-ordinary states); neuroplasticity research; mystical tradition broadly
Blind spots: Regulatory fragmentation; limited standardization of psychotherapy component; risk of ketamine becoming the treatment rather than catalyst
Therapeutic voice: As the medicine takes effect, just notice what arises without directing it. We'll make sense of it together.
Somatic Experiencing
Philosophical roots: Reich/Lowen (body holds defense — Levine studied with both); Merleau-Ponty (lived body); Darwin (survival instincts); ethology (Tinbergen, Lorenz — animal defensive responses); James-Lange (emotion as bodily process)
Blind spots: Risk of over-physiologizing psychological meaning; limited manualization makes research difficult; can be vague in application
Therapeutic voice: Where in your body do you feel that right now? Just notice, without trying to change it.
Choosing between them
KAP (Psychedelic) and Somatic Experiencing (Somatic) come from different traditions, which means they assume different things about what a person is, what causes suffering, and what the therapeutic relationship is for. The choice between them is often less about "which works better" and more about which set of assumptions fits the client and the therapist.
For deeper coverage: see the full KAP and Somatic Experiencing pages, or use the interactive comparison tool to add more modalities to this comparison.