Hey there,

You know EMDR works…

But do you really understand why?

Let’s talk about the AIP model.

Developed by EMDR creator Francine Shapiro, the AIP model proposes that our brains have a natural ability to process and integrate information in an adaptive, health-promoting way.

Just like the body knows how to heal from a cut, the brain is wired to move toward mental health (if its natural processing system isn’t blocked).

But sometimes, this natural healing process gets disrupted:

Unprocessed memories, emotions, and sensations can get “stuck” in the nervous system, causing a range of symptoms from flashbacks, nightmares, anxiety, irritability, depression, dissociation, and even chronic pain.

The AIP model suggests that instead of random glitches, these symptoms are actually the brain's way of trying to signal that there's unfinished business that needs attention.

That's where EMDR comes in.

By using bilateral stimulation (usually eye movements), EMDR kickstarts the brain's innate information processing system, allowing those stuck memories to finally be reprocessed and integrated.

As this happens, the associated distress diminishes, negative beliefs transform into more adaptive ones, and symptoms often resolve.

So in essence, EMDR doesn't "implant" anything new. It simply removes the blocks that were preventing the brain from healing itself (it's like hitting the "resume" button on the mind's natural recovery process).

We see evidence of this through research. Brain imaging research looking at bilateral stimulation has discovered there are two things happening simultaneously:

1. Parts of the brain responsible for vivid memory recall are activated (Pagani et al., 2012).
2. Parts of the brain responsible for intense, overwhelming emotion are suppressed (de Voogd et al., 2018).

This creates a ‘window of tolerance’ that allows for very efficient processing of challenging content. A brain state that is ripe for healing and growth.

Even more supportive of the AIP model, brain imaging research has shown EMDR to reconsolidate and store memories in the brain more adaptively. When recalling the same traumatic memory pre and post EMDR, brain activity moves from the primitive 'fight or flight' part of the brain, to the Neo-cortex.

One common misconception about the AIP model is that it only applies to "big T" traumas like combat or assault.

But the truth is, any experience that overwhelms our nervous system can create these unprocessed memory networks (including things like medical procedures, childhood humiliations, workplace bullying, over-competitive work or school environments, or even just the cumulative stress of growing up in a chaotic household).

That's why EMDR proves effective for such a diverse array of presentations.

Whether it's PTSD, anxiety, depression, chronic pain, or even performance blocks, the AIP model provides a lens for understanding how unresolved experiences may be driving current symptoms (and how reprocessing those experiences can create big shifts in the brain).

Of course, the AIP model is just that... It’s a model. Not a complete explanation.

We're still learning exactly how EMDR facilitates information processing on a neurobiological level. But as a framework for guiding treatment and predicting outcomes, it's been incredibly valuable.

So the next time you're conceptualizing a complex case or explaining EMDR to a skeptical colleague, remember the power of the AIP model (it's the foundation that everything else in the EMDR world is built on!)

Or if you want a deeper dive into the nuances of the AIP model, I highly recommend checking out some of Francine Shapiro's original writings, like her seminal text "Eye Movement Desensitization and Reprocessing: Basic Principles, Protocols, and Procedures."

But before you go, I’d love to know:

What "aha" moments have you had in seeing the AIP model play out with your clients?

Hit reply and let me know.

Until next time,

Chris

Thanks for reading Helicon's EMDR Therapist Weekly, where we aim to provide a weekly dose of insights, tools, and opportunities for EMDR therapists; designed to support your growth, sharpen your practice, and connect you with what's next.

If you're not already subscribed, ​subscribe here​. You can also ​click here to learn about what Helicon is building​, or ​apply to join our pilot​ if you're an EMDR provider and want to connect with others on the same path.