From Fragmentation To Freedom: A Journey Through The History Of Parts-Based Therapy

the History of Parts Work Therapeautic Modalities

Have you ever felt like part of you was ready to step forward, but another part hesitated or held back? Maybe one part longs to say yes, while another screams no. These moments of inner conflict reveal a fundamental truth – we are not just one voice. Inside each of us lives a rich inner cast of characters, each with its own memories, motives, and meanings.

Over the past century, therapists have been listening more deeply to those voices within. The evolution of parts-based therapies reflects a growing understanding: healing isn’t about eliminating parts of ourselves. It’s about integrating them. Let’s take a journey through the key approaches that have shaped this field, ending with Resource Therapy – a modern model offering clarity, compassion, and clinically precise healing.


The Roots Of Parts Therapy: Ego State Theory

Our voyage begins with Paul Federn, an early psychoanalyst and contemporary of Freud, who first introduced the idea that the personality is made up of distinct states. His student Edoardo Weiss continued this exploration, and later John and Helen Watkins developed Ego State Therapy. This model posited that our psyche is composed of parts – or “ego states” – that can operate independently. These parts could be functional or frozen in trauma, and they could be accessed through hypnosis or dialogue.

What was revolutionary here? Rather than treating the person as a monolithic self, therapists began working directly with the state that held the pain, fear, or stuck behaviour.


Systemic Echoes: Family Constellations

While not a parts model in the traditional sense, Bert Hellinger’s Family Constellations added a powerful layer. His work focused on the idea that unresolved systemic trauma could live on in the internal world of descendants. Parts of us may carry the burdens of others, ancestors, lost siblings, and family secrets.

Constellations externalised these inner dynamics in space, offering clients the chance to see how loyalty to suffering may be embedded in a part of them. These insights paved the way for greater compassion and awareness of the unconscious loyalties that parts may carry.


The Dialoguers: Voice Dialogue

Enter Hal and Sidra Stone, who invited us to meet our inner voices with intention. Their method, Voice Dialogue, gave form to familiar parts – the Inner Critic, the Pleaser, the Vulnerable Child, and encouraged clients to speak as the part. No fixing. No fusing. Just listening.

Their approach normalised multiplicity and championed the idea that every part has value. Even the saboteur is protecting something. Their legacy lies in the permission they gave us to dialogue with complexity, not just simplify it.


The Inner Family: Internal Family Systems (IFS)

Richard Schwartz took these ideas mainstream with Internal Family Systems (IFS). His model framed the psyche as an inner family of “parts,” with a central Self that is calm, compassionate, and confident. The goal of IFS is to heal wounded “exiles” and transform protective “managers” and “firefighters” so the Self can lead.

IFS became incredibly popular because of its non-pathologising language and its accessible way of working. However, it can sometimes lean heavily into spiritual concepts, rely on Self, which isn’t always accessible, and doesn’t always offer therapists a clear treatment path for trauma-driven behaviours.


Enter Resource Therapy: The Clinical Compass

Resource Therapy (RT), developed by Dr Gordon Emmerson in Australia, brings together the depth of Ego State Therapy with the precision of clinical intervention. It’s the next generation in parts-based therapy – trauma-informed, client-centred, and neurologically attuned.

Here’s what makes Resource Therapy unique:

  • Parts are called Resource States, and they are physiological, not just symbolic. That means they’re real, distinct states with specific neural pathways.
  • RT works only with the part that holds the issue. We don’t just talk about the anxious part – we bring it out and speak directly with it. With deep respect and compassion.
  • Knows we can have the best part suited to the occasion at the helm. Captain Conscious pilots the way with the appropriate skills and abilities.
  • The model offers a detailed diagnostic system with eight types of Resource pathologies, including:
    • Vaded with Fear (e.g. panic, phobias, PTSD)
    • Vaded with Rejection (e.g. low self-worth, perfectionism)
    • Retro Avoiding (e.g. addictions, avoidance behaviours)
    • Conflicted States (inner tension and paralysis)
  • RT uses 15 specific therapeutic actions – including Vivify Specific, Bridging, Expression, Introject Speak, Relief, and Resource Finding – giving clinicians a clear roadmap for deep, lasting change.
  • And it all rests on the brilliant ship metaphor. Each person is a ship with many crew members. When the right part is at the helm, we sail smoothly. When a wounded or outdated state grabs the wheel at the wrong time, we veer off course. RT helps clients restore internal harmony so the most skilled captain can steer.

Integration, Not Elimination

From Federn’s clinical focus to Hellinger’s ancestral insight, from Voice Dialogue’s inner conversations to IFS’s compassionate Self, each model has gifted us a new way to see the inner world. They remind us that healing is not about silencing parts, but about hearing them, honouring them, and helping them come back into relationship with the whole.

Resource Therapy builds on this legacy, providing a sophisticated, trauma-attuned approach that empowers therapists to work directly with the state that needs healing. It doesn’t ask, “What’s wrong with you?” – it asks, “Which part of you is hurting, and how can we help you?”

When we stop seeing ourselves as broken and start recognising the parts of us trying their best to survive, we open the door to real healing.

And when the right part is at the helm, the whole ship can sail towards freedom.

IFS Vs Resource Therapy: What’s The Difference? A Parts-Based Perspective For Trauma Professionals

All the Parts of me in my brain - my inner crew our Resources. Join clinical Resource Therapy certification training with Gordon Emmerson, Philipa Thornton

As psychologists, trauma therapists, and counsellors, you have likely encountered the rising popularity of Internal Family Systems (IFS) – and perhaps, heard whispers of another parts-based approach: Resource Therapy (RT).

While both models work with inner parts, their methodology, clinical structure, and language differ in key ways.

Let us unpack what sets Resource Therapy apart – and why more clinicians are choosing it to deepen their trauma-informed resilience-enhancing practice.

Two Parts-Based Models, One Clear Distinction

Both IFS and RT understand the human psyche as comprising inner parts. IFS, developed by Dr Richard Schwartz, describes protectors, exiles, and a core Self, with therapy focused on accessing and unblending these parts, so the Self can lead.

Resource Therapy, developed by Professor Gordon Emmerson, PhD, evolved from ego state therapy yet offers a distinct and clinically advanced model. RT works with Resource States – the personality parts activated in specific situations, triggered if you will – using direct and respectful interventions that resolve inner conflicts at the source.

Unlike IFS, which builds inner dialogue over time, RT engages directly with the part in control, using targeted Treatment Actions to bring emotional healing and resolution. This is client-directed according to the client’s goals and needs.

“All our parts have a purpose. Even when they seem problematic, they’re trying to help – but sometimes they’ve learned the wrong lesson.” Emmerson, G. (2012)

A Therapy Of Action, Not Just Awareness

What makes Resource Therapy powerful in clinical practice is its 15 Treatment Actions, which are mapped to its neuropsychological model and rooted in research on trauma and memory reconsolidation (Ecker et al., 2012). Buy the book here.

These allow clinicians to precisely identify, access, and treat the part holding pain, with interventions that often bring about rapid and lasting change.

Whether a client is navigating trauma, anxiety, dissociation, or confusion, RT offers a clear roadmap and compassionate approach.

It is equally useful for non-clinical goals such as performance anxiety, assertiveness, or relationship issues – empowering clients to access their strengths and select the best part of self for the job. When we have the best part in the Captain’s seat to suit the occasion, we are in flow, and it’s smooth sailing.

RT is a standalone therapy, however can fit seamlessly into your EMDR, DBR, ACT, clinical hypnotherapy and coaching styles.

“IFS is a method of understanding and harmonising the mind’s parts, with the Self as a compassionate leader.”
— Schwartz, R. (2021)

Buy from Amazon his book No Bad Parts here.

RT’s Unique Language and Structure

In IFS, we speak of protectors and exiles. In RT, we work with Resources – not as stuck pathologies, but as valued parts of the personality system. Our parts can change and adapt.

When Resources become Vaded (emotionally hurt or stuck in fear, shame, blame, confusion, or disappointment), therapy involves bringing healing directly to that state, with empathy, and compassion. All our parts are trying to help. Or Resources acting out in outdated modes of being – sexting, rage attacks, gambling or withdrawing, self-injurious behaviours, for instance. We work directly to negotiate change. Inviting a more empowered part to take the lead and crew the ship.

RT offers an attachment-based lens, where we find an internal adult caring figure to share love, compassion, and calm within.

As one client shared, “Oh, this part of me, ‘Loving’ is caring, kind, and is a loving part always there for me. It won’t leave me, it won’t cheat on me, it won’t die or abandon me. It is Me. So amazing. What a relief.” (used with permission).

At the Australian Resource Therapy Institute, Philipa has developed the ship/ boat metaphor: the client is the captain; the parts are the crew. This makes RT easily explainable to clients who want an understanding of how parts therapy works. When a confused or defensive part takes the wheel, therapy gently helps the client regain direction, with the best Resource stepping in to guide the ship forward.

Grounded In Science – Mapped To Real Diagnosis

Unlike many integrative therapies, Resource Therapy offers diagnostic clarity and clinical alignment. Its treatment framework maps well onto major mental health classifications, including DSM-5 and ICD-11 categories for trauma, dissociation, anxiety, and depression.

As Professor Gordon Emmerson writes in Therapist Gold:

“Resource Therapy not only provides a complete and thorough personality theory, but has its own diagnostic classifications… [which] cover all existing psychological disorders except for organically caused disorders. RT offers treatment for every concern a client presents within the psychological spectrum – whether fear-based disorders, OCD, eating disorders, self-harming behaviours, addictions, suicidal ideation, or any other presentation” (Emmerson, 2024, p. 35). Buy Gordon Emmerson Therapist Gold book here.

This makes Resource Therapy particularly valuable for psychologists, trauma therapists, professionally trained coaches, mental health accredited social workers, doctors, psychiatrists, and counsellors seeking a state-based, evidence-informed method that supports both short-term results and deeper personality-level healing.


You Are In Expert Hands

The Clinical Resource Therapy Training is co-led by Philipa Thornton, President of Resource Therapy International, and her amazing husband, Chris Paulin, a consultant psychologist with over 45 years of experience in clinical practice and trauma treatment.

Together, they bring warmth, depth, and expertise along with special guest appearances from Professor Gordon Emmerson himself, founder of the Resource Therapy model.

Explore Gordon’s essential book:
Healthy Parts, Happy Self: 3 Steps to Like Yourself
https://www.resourcetherapy.com.au/books

Which Model Is Right For Your Practice?

Both IFS and RT honour the complexity of the inner world. But if you are seeking a clinically structured, empowering, trauma-informed approach that treats the part in control with precision and care, Resource Therapy offers the path forward. A roadmap for results with your therapeutic artistry and healing heart.


Join The Clinical Resource Therapy Program

Are you ready to learn a structured, parts-based model grounded in compassion and clarity?

Join the Clinical Resource Therapy Internationally recognised Certification Program through the Australian Resource Therapy Institute, led by Philipa Thornton and Chris Paulin, Master trainers.

Explore flexible options, expert support, and the chance to learn and train directly from the founder, Gordon Emmerson, PhD.
👉 www.resourcetherapy.com.au/training


📚 References

  • Emmerson, G. (2012). Healthy parts, happy self: 3 steps to like yourself. Old Golden Point Press.
  • Emmerson, G., & Essing, C. (2024). Therapist Gold: Treating Fear-Based Trauma and Attachment Trauma. Old Golden Point Press. Blackwood Victoria, Australia.
  • Schwartz, R. C. (2021). No bad parts: Healing trauma and restoring wholeness with the Internal Family Systems model. Sounds True.
  • Ecker, B., Ticic, R., & Hulley, L. (2012). Unlocking the emotional brain: Eliminating symptoms at their roots using memory reconsolidation. Routledge.

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