IFS vs NARM
A side-by-side comparison: mechanism, evidence, the conditions each treats, philosophical roots, and where they actually disagree clinically.
At a glance
IFS
- Tradition
- Family Systems
- Founder
- Richard Schwartz (1995)
- Evidence
- RCT-supported
- Focus
- Experiential + Systemic
- Format
- Individual + Couples
- Duration
- Open-ended
NARM
- Tradition
- Somatic
- Founder
- Laurence Heller (2012)
- Evidence
- Emerging evidence
- Focus
- Developmental + Relational + Somatic
- Format
- Individual
- Duration
- Medium to long-term
How they work
IFS
Core mechanism: Self-energy (curiosity, compassion, calm) accesses and unburdenes exiled parts; protector parts relax when exiles are healed
Ontology: Internal system of parts carrying burdens from attachment injuries; protectors manage exiles' pain
NARM
Core mechanism: Simultaneously tracking somatic experience, relational patterns, and identity-level beliefs reveals how developmental survival styles organized around early unmet needs are maintained in the present
Ontology: Early attachment failures create survival styles that organize identity, relationships, and somatic patterns into predictable configurations; the self-structure formed around deprivation, not the original events, is what maintains suffering
Conditions treated
3 shared · 4 IFS-only · 0 NARM-only
Both treat
Only IFS
What each assumes — and misses
IFS
Philosophical roots: Systems theory (Bertalanffy); Schwartz (inner system as family); Jung (subpersonalities, Self); Buddhist concept of witnessing awareness (Self-energy); multiplicity of mind (Ornstein, Minsky)
Blind spots: Popularity far outpaces evidence base; parts language can become reified; limited research outside pilot studies
Therapeutic voice: Can you ask that critical part what it's afraid would happen if it stepped back?
NARM
Philosophical roots: Heller (developmental trauma and identity); Reich (character armor — reimagined developmentally); Bowlby (attachment); Schore (affect regulation); Winnicott (true self/false self); Lowen (bioenergetics, reframed)
Blind spots: Limited empirical evidence; five survival styles risk becoming rigid typology; developmental focus may not address acute symptom presentations; less helpful for single-incident trauma
Therapeutic voice: You're telling me about this pattern of always taking care of others. As you say that, what do you notice happening in your body? And I'm curious — what happens inside when you imagine someone wanting to take care of you?
Choosing between them
IFS (Family Systems) and NARM (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 IFS and NARM pages, or use the interactive comparison tool to add more modalities to this comparison.