What is EMDR Therapy and How Does It Work?

A comprehensive guide to understanding EMDR (Eye Movement Desensitization and Reprocessing)—one of the most effective evidence-based treatments for trauma, anxiety, and PTSD. Learn how this powerful therapy works and whether it could help you heal.

Written by Jenny Palmer, Licensed Therapist & EMDR Specialist | Updated May 2026

What is EMDR Therapy?

EMDR stands for Eye Movement Desensitization and Reprocessing. It's a psychotherapy treatment developed in 1987 by psychologist Francine Shapiro to help people process traumatic memories and reduce the emotional distress associated with trauma.

Unlike traditional talk therapy, EMDR combines guided eye movements (or other bilateral stimulation) with trauma processing to help your brain naturally heal from traumatic experiences. It's one of the most thoroughly researched and evidence-based treatments for Post-Traumatic Stress Disorder (PTSD), and it's also highly effective for anxiety, depression, and other trauma-related conditions.

The World Health Organization (WHO) and the National Institute for Health and Care Excellence (NICE) both recommend EMDR as a first-line treatment for trauma and PTSD—making it one of the most credible psychological interventions available.

How Does EMDR Therapy Work?

The mechanism behind EMDR is rooted in how your brain processes information. When you experience trauma, the memory can get "stuck" in your nervous system, causing you to re-experience the distress whenever something reminds you of the event. This is why trauma survivors often struggle with flashbacks, nightmares, and intense emotional reactions.

EMDR works by facilitating the brain's natural healing process. Here's how:

  • Activation: You bring to mind the traumatic memory while the therapist guides your eye movements side-to-side (or uses other bilateral stimulation like tapping or sounds).
  • Reprocessing: The combination of recalling the trauma and the bilateral stimulation seems to unlock the brain's ability to process the memory more completely.
  • Desensitization: As the memory is reprocessed, the emotional charge attached to it gradually diminishes. What once triggered intense fear may become a neutral memory.
  • Integration: The traumatic memory gets integrated into your broader life narrative, and you develop more adaptive beliefs about yourself and the experience.

Think of it this way: trauma can get "stuck" because the memory wasn't processed properly at the time. EMDR jumpstarts your brain's natural processing system, allowing it to "update" the memory so it no longer threatens your sense of safety.

The 8 Phases of EMDR Treatment

EMDR follows a structured, 8-phase protocol that ensures comprehensive trauma processing:

Phase 1: History & Treatment Planning

Your therapist takes a detailed history and identifies the traumatic memories to target in treatment.

Phase 2: Preparation & Resource Building

You learn coping skills and develop a sense of safety before processing difficult memories.

Phase 3: Assessment

The therapist identifies the specific image, belief, emotion, and body sensation associated with the trauma.

Phase 4: Desensitization

You process the traumatic memory with eye movements until the emotional distress significantly reduces.

Phase 5: Installation

The therapist helps strengthen positive beliefs about yourself and the memory.

Phase 6: Body Scan

You identify any remaining tension in your body related to the memory.

Phase 7: Closure

The session ends with techniques to ensure you feel grounded and stable.

Phase 8: Re-evaluation

At the start of each session, your progress is reviewed and adjustments are made as needed.

What to Expect During an EMDR Session

An EMDR session typically lasts 60-90 minutes. Here's what a typical session looks like:

  1. Check-in: We start by discussing how you've been since the last session and any insights or shifts you've noticed.
  2. Target Selection: We identify which traumatic memory or issue to work on today.
  3. Resource Building: If needed, we establish a "safe place" or coping resource you can return to.
  4. Processing: You recall the traumatic memory while I guide your eyes side-to-side. You may notice images, emotions, or sensations changing or shifting.
  5. Breaks & Feedback: We pause between sets of eye movements for you to report what you're experiencing.
  6. Closing: We end with grounding techniques to ensure you feel stable and present.

During the eye movement sets, some clients report that the memory feels less vivid, the emotional intensity drops, or they suddenly gain new insights. Others experience waves of emotion or physical sensations. All of these responses are normal—your brain is processing the trauma.

What Conditions Does EMDR Treat?

While EMDR is best known for treating PTSD and trauma, research shows it's effective for a wide range of conditions:

  • PTSD & Trauma: Single-incident trauma (accidents, assaults, grief) and complex trauma (childhood abuse, repeated trauma)
  • Anxiety Disorders: Panic disorder, generalized anxiety, social anxiety, and phobias
  • Depression: Particularly depression rooted in traumatic experiences or loss
  • Grief & Loss: Processing complicated grief and bereavement
  • Birth Trauma & Perinatal Issues: Traumatic birth experiences, postnatal PTSD, and perinatal loss
  • Relationship Issues: Infidelity, betrayal trauma, and attachment wounds
  • Childhood Trauma: Neglect, abuse, abandonment, and other adverse childhood experiences
  • Performance Anxiety: Stage fright, sports performance issues, and exam anxiety

The Science Behind EMDR: Research & Evidence

EMDR has one of the largest bodies of research evidence of any psychotherapy. Here's what the evidence shows:

  • Effectiveness: Studies show that 80-90% of single-trauma PTSD patients no longer meet diagnostic criteria after just 3 sessions.
  • World Health Organization (WHO): Recommends EMDR as a first-line treatment for PTSD alongside trauma-focused CBT.
  • NICE (UK): The National Institute for Health and Care Excellence endorses trauma-focused psychological treatments including EMDR.
  • Neuroscience: Brain imaging studies show that EMDR activates both hemispheres of the brain, facilitating more complete processing of traumatic memories.
  • Randomized Controlled Trials: Multiple RCTs confirm EMDR is as effective or more effective than other evidence-based trauma treatments.

How Does EMDR Compare to Other Therapies?

EMDR vs. Cognitive Behavioral Therapy (CBT): Both are evidence-based. CBT involves talking through the trauma and changing thought patterns. EMDR uses eye movements to facilitate reprocessing. Many people find EMDR faster and require less verbal processing of the trauma.

EMDR vs. Talk Therapy: Traditional talk therapy can be valuable for insight, but it often requires extensive verbal rehashing of the trauma. EMDR accelerates the processing with less need to repeatedly narrate the painful story.

EMDR vs. Medication: Medication can manage symptoms, but EMDR addresses the root cause by reprocessing the traumatic memory itself. Many people reduce or discontinue medication once the trauma is processed.

Is EMDR Right for Me?

EMDR is suitable for most people and can be adapted for different ages and conditions. However, it works best for people who:

  • Have experienced a traumatic event or ongoing trauma
  • Are motivated to process and heal from their trauma
  • Can tolerate brief moments of emotional intensity during processing
  • Have some stability in their life (though EMDR can be adapted for crisis situations)

During a free consultation, I can assess whether EMDR is the right treatment for you or recommend a combination of approaches.

Getting Started with EMDR Therapy

If you're interested in exploring EMDR therapy, the first step is a free 20-minute consultation where we can discuss your needs, your history, and whether EMDR is the right fit for you.

I offer EMDR sessions online via secure video conferencing, so you can access treatment from the comfort and privacy of your own home. Sessions are 60-90 minutes and are tailored to your specific needs.

Ready to explore healing from trauma? Book your free consultation today to discuss whether EMDR therapy is right for you.

Frequently Asked Questions About EMDR

How many EMDR sessions do I need?

This varies based on the trauma and your history. Single-incident trauma may resolve in 3-6 sessions. Complex trauma may take longer. We'll discuss a treatment plan during your consultation.

Do the eye movements have to be visible?

No. While eye movements are the most common form, I can also use tapping (bilateral tapping on your knees or hands) or audio stimulation if preferred.

Can EMDR be done online?

Yes! Online EMDR is just as effective as in-person. I use secure video conferencing for all sessions, and the bilateral stimulation can be adapted for online delivery.

Will I become re-traumatized during EMDR?

The goal of EMDR is to reduce emotional intensity, not increase it. Your therapist carefully titrates the process to ensure you stay within a therapeutic window—not too much pain, but enough to process.

Ready to Heal from Trauma?

EMDR therapy can help you process trauma and reclaim your wellbeing. Schedule a free consultation to discuss whether EMDR is right for you.

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