Accelerated Resolution Therapy vs EMDR: how are they actually different?

If you have started reading about trauma therapy you have probably hit both acronyms within about ten minutes, along with a lot of confident writing that treats them as interchangeable. They are not. I am trained in both, and here is the comparison I give people in consultations.

The thing they share

Both belong to a family of therapies using bilateral stimulation — typically guided horizontal eye movements — while a client holds a distressing memory in mind. Both are built on the observation that traumatic memories appear to be stored differently from ordinary ones, and that something about this process helps the brain file them properly at last.

Both also share the feature that matters most to a lot of people: you do not have to describe what happened to you in detail for either to work.

Where they diverge

The procedure

EMDR follows an eight-phase protocol developed by Francine Shapiro in the late 1980s. It moves through history taking, preparation, assessment, desensitisation, installation of a positive belief, a body scan, closure and re-evaluation. It is relatively non-directive during the reprocessing itself: the therapist follows wherever your associations go.

ART, developed by Laney Rosenzweig in 2008, is considerably more directive and more procedurally structured. Its distinguishing move comes in the second half: after the physical sensations attached to the memory have settled, ART works explicitly on the imagery, and you replace the distressing picture with one you choose. EMDR does not include this step.

What it feels like in the room

EMDR tends to feel more like following a thread. Associations surface, you report them, and the work goes where it goes. ART feels more like being walked through a defined sequence, with the clinician actively steering.

Neither is better in the abstract. People who want more containment and structure frequently prefer ART. People who want room to make their own connections frequently prefer EMDR.

Length of treatment

ART is generally designed as a brief protocol and is often described as needing fewer sessions than EMDR. That is broadly consistent with what I see, and it comes with a caveat I would rather you got from me than from a marketing page: how many sessions a specific person needs depends on what happened to them and for how long. Nobody can tell you the number before they have assessed you.

The evidence base — the important difference

This is where an honest comparison has to be blunt.

EMDR has a large research literature accumulated over three decades and is a recommended treatment for PTSD in the VA/DoD clinical practice guideline and in the American Psychological Association guideline. If you walk into any trauma-informed clinic in the country and say the letters, everyone knows what you mean and what it is for.

ART’s literature is newer and much smaller. There are randomised and open trials, including several with military populations, with encouraging results, and it has previously appeared in SAMHSA’s registry of evidence-based programmes. But the trials have generally been small, and a substantial portion of the research has been conducted by groups connected to the therapy’s development. That is a normal stage for a young treatment. It is not the same as thirty years of independent replication.

So how do you choose?

Practically, it usually comes down to four things.

1. What is available and affordable near you. The best-evidenced therapy you cannot access is worse than the good one you can.
2. How much structure you want. A genuine preference, worth saying out loud in a consultation.
3. What you have already tried. If EMDR has been attempted and stalled, that is a real reason to try something with a different procedure.
4. The clinician. Consistently one of the strongest predictors of whether therapy helps — larger, in the research, than the difference between two credible methods.

Questions worth asking whoever you see

• Which of these are you trained in, and to what level?
• How many people with something like my situation have you treated?
• How will we know whether it is working, and by when?
• What will you do if it is not working?
• Is there a treatment you would recommend over this one for me?

That last one is the useful question. A clinician who cannot name a situation in which they would send you elsewhere has stopped thinking clinically.

If you want to talk through which of these might fit your situation, getting started takes a few minutes.