EMBARK 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
EMBARK
- Tradition
- Psychedelic
- Founder
- Brennan / Belser (2022)
- Evidence
- RCT-supported
- Focus
- Integration + Processing
- Format
- Individual (dyadic facilitation team)
- Duration
- Variable (structured phases: preparation, medicine sessions, integration)
Somatic Experiencing
- Tradition
- Somatic
- Founder
- Peter Levine (1997)
- Evidence
- RCT-supported
- Focus
- Somatic + Experiential
- Format
- Individual
- Duration
- Medium-term
How they work
EMBARK
Core mechanism: Structured attention to the six domains that emerge in psychedelic states enables integration of the experience into lasting psychological change, while the four care cornerstones ensure ethical, trauma-informed, culturally competent delivery
Ontology: A whole person whose psychedelic experience activates multiple dimensions simultaneously — existential, somatic, relational, affective-cognitive — requiring a multi-domain therapeutic response rather than a single-mechanism model
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 · 4 EMBARK-only · 4 Somatic Experiencing-only
Both treat
Only EMBARK
Only Somatic Experiencing
What each assumes — and misses
EMBARK
Philosophical roots: Grof (non-ordinary states); James (varieties of religious experience); harm reduction philosophy; CBT, ACT, and psychodynamic traditions integrated
Blind spots: Developed within a pharmaceutical research context (Cybin); limited independent replication; open-source status means variable implementation quality; requires specialized training not yet standardized across programs
Therapeutic voice: Which of these domains felt most alive during your experience? Let's start there.
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
EMBARK (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 EMBARK and Somatic Experiencing pages, or use the interactive comparison tool to add more modalities to this comparison.