EMDR Therapy: Definition, Effectiveness and Application In Addiction Treatment

Eye movement desensitization and reprocessing (EMDR) therapy is a structured, 8-phase psychotherapy that treats the distress of traumatic memories through bilateral stimulation — guided side-to-side eye movements performed while the patient holds the memory in attention. Psychologist Francine Shapiro developed EMDR therapy and published its first randomized controlled trial in 1989; the World Health Organization, the American Psychiatric Association, and the U.S. Department of Defense recognize EMDR as an effective treatment for post-traumatic stress disorder (PTSD), per Shapiro's 2014 review in The Permanente Journal.

EMDR therapy rests on the Adaptive Information Processing (AIP) model, which holds that unprocessed memories of distressing experiences — stored with their original emotions, body sensations, and beliefs — are the foundation of trauma symptoms. In addiction treatment, EMDR targets the traumatic memories that drive substance use as self-medication: a 2024 meta-analysis of 5 randomized controlled trials found EMDR reduced substance craving with a standardized mean difference of -0.87.

Valley Spring Recovery Center in Norwood, New Jersey publishes EMDR among its 12 clinical modalities and matches trauma-trained therapists to clients at intake when trauma is present.

What Is EMDR Therapy?

EMDR therapy is a trauma-focused psychotherapy that reprocesses distressing memories through bilateral stimulation, reducing the emotional charge those memories carry. Unlike talk therapies that analyze the memory's content, EMDR activates the memory while engaging the brain's information-processing system, so the memory is re-stored in a less disturbing form.

The therapy's mechanism claim comes from the Adaptive Information Processing model: high-arousal experiences overwhelm normal memory processing and remain stored in implicit memory with their original emotions, sensations, and beliefs intact. A present-day trigger — a smell, a conflict, a location — reactivates the stored material at full intensity, and substance use becomes the fastest available relief. EMDR moves the memory into explicit, integrated memory, where it informs rather than intrudes. That movement happens inside a fixed 8-phase protocol.

What Are the 8 Phases of EMDR Therapy?

The 8 phases of EMDR therapy are history taking, preparation, assessment, desensitization, installation, body scan, closure, and reevaluation, as Francine Shapiro's 2014 review in The Permanente Journal defines them. The following table lists each phase and its clinical purpose.

Phase	Name	Purpose
1	History taking	Collect the patient's background and assess suitability, building the list of target memories
2	Preparation	Establish stabilization and self-calming skills so the patient tolerates memory work
3	Assessment	Activate the target memory and rate its image, negative belief, emotion, and body sensation
4	Desensitization	Apply bilateral stimulation until the memory's distress rating falls toward adaptive resolution
5	Installation	Strengthen the positive belief the patient selects to replace the negative one
6	Body scan	Locate and process any residual physical response to the memory
7	Closure	Return the patient to emotional equilibrium before the session ends
8	Reevaluation	Re-check the processed memory at the next session and select the next target

The protocol is fixed; the evidence for what it achieves in PTSD is the next question.

How Effective Is EMDR for PTSD?

EMDR is an empirically supported PTSD treatment, backed by 24 randomized controlled trials in trauma and adverse life experiences and recognized by the World Health Organization, the American Psychiatric Association, and the U.S. Department of Defense, according to Shapiro's 2014 review. The same review reports single-trauma outcomes: 84 to 90 percent of single-trauma victims no longer met PTSD criteria after three 90-minute sessions, and one trial reported 100 percent remission for single-trauma victims after a mean of six 50-minute sessions.

One qualification keeps those figures honest: the strongest remission rates come from single-trauma samples — complex, repeated trauma requires longer preparation and more targets. For patients whose trauma coexists with a substance use disorder, the treatment question shifts from symptom remission to whether reprocessing changes use itself.

How Does EMDR Help in Addiction Treatment?

EMDR helps in addiction treatment by reprocessing the trauma memories that drive self-medication, producing measured reductions in craving and in co-occurring trauma, depression, and anxiety symptoms. A 2024 meta-analysis of 5 randomized controlled trials with 266 participants, published in Brain Sciences, found EMDR reduced craving with a standardized mean difference of -0.87 (95% CI -1.12 to -0.61) against control conditions.

Seok, Ji-Woo and colleagues' 2025 meta-analysis of 14 studies in Frontiers in Psychiatry measured the same direction across 4 outcomes: moderate, statistically significant effects for craving (g = 0.55), post-traumatic symptoms (g = 0.69), depression (g = 0.64), and anxiety (g = 0.72). The same analysis found no statistically significant effect on overall addiction severity, and both meta-analyses flag small samples and limited long-term follow-up. The precise reading: EMDR is an adjunct that treats the trauma engine of a substance use disorder — it does not replace the behavioral therapies and program structure that treat the disorder itself. What a patient experiences inside that adjunct is concrete and session-bound.

What Happens During an EMDR Session?

During an EMDR processing session, the patient holds a target memory in attention — its image, negative belief, and body sensation — while following the therapist's fingers or a light bar in repeated bilateral sets, reporting what surfaces between sets. The therapist measures distress on the Subjective Units of Disturbance scale from 0 to 10 and continues sets until the rating drops and the paired positive belief feels true.

Processing sessions carry real emotional intensity: confronting a stored memory raises strong affect before it resolves, which is why phase 2 builds self-calming skills first and phase 7 closes every session at equilibrium. EMDR runs alongside — not instead of — group-based treatment, where group therapy supplies the peer support and accountability that individual trauma work does not. How the two fit together is a program-design decision.

How Does EMDR Fit Into Treatment at Valley Spring Recovery Center?

EMDR is 1 of the 12 clinical modalities at Valley Spring Recovery Center, and trauma-trained therapists are matched to clients at intake when trauma is present. Therapy at the center runs in individual sessions and process groups, with no therapist carrying more than eight clients, in Norwood, New Jersey. The full modality set is compared in the Addiction Therapy Modalities Library.

Trauma work at the center sits inside a broader trauma-informed structure — screening at intake, PCL-5 symptom tracking, and clinician matching — and the daily individual and group schedule at each level of care is detailed on the Group & Individual Therapy Program page. Where a patient's presentation calls for cognitive restructuring rather than memory reprocessing, cognitive behavioral therapy remains the center's primary modality. Admissions staff answer (201) 781-8812 at all hours to schedule a clinical assessment and verify insurance benefits.

What Are the Most Common Questions About EMDR Therapy?

The 6 questions below cover the definitions, evidence figures, and practical facts people search most about EMDR therapy.

Who Developed EMDR Therapy?

Psychologist Francine Shapiro developed EMDR therapy and published its first randomized controlled trial in 1989. She also authored the Adaptive Information Processing model that explains how unprocessed traumatic memories produce psychological symptoms.

What Is Bilateral Stimulation?

Bilateral stimulation is the alternating left-right sensory input — guided eye movements, taps, or tones — applied while a patient holds a target memory in attention. It is the mechanism EMDR uses to engage memory reprocessing during desensitization.

How Many EMDR Sessions Does PTSD Treatment Take?

Shapiro's 2014 review reports 84 to 90 percent of single-trauma victims no longer met PTSD criteria after three 90-minute sessions. Complex or repeated trauma requires more targets, longer preparation, and more sessions.

Does EMDR Reduce Drug and Alcohol Cravings?

Yes. A 2024 meta-analysis of 5 randomized controlled trials with 266 participants found EMDR reduced craving with a standardized mean difference of -0.87, and a 2025 meta-analysis of 14 studies measured a moderate craving effect (g = 0.55).

Is EMDR a Standalone Addiction Treatment?

No. Meta-analytic evidence shows EMDR reduces craving and trauma symptoms but not overall addiction severity, so clinicians deliver it as an adjunct to behavioral therapy, group treatment, and structured levels of care.

Is EMDR Recognized by Medical Organizations?

Yes. The World Health Organization, the American Psychiatric Association, and the U.S. Department of Defense recognize EMDR as an effective PTSD treatment, per Shapiro's 2014 review in The Permanente Journal.