What Actually Happens During an EMDR Session?

The Mystery Behind the Eye Movements

If you have heard about EMDR therapy — Eye Movement Desensitization and Reprocessing — you might be curious, intrigued, and a little skeptical all at once. The idea that moving your eyes back and forth while thinking about a difficult memory can reduce its emotional intensity sounds unusual. And walking into any new therapy can feel intimidating when you do not know what will happen.

This article walks you through what an EMDR session actually looks like, from beginning to end, so you can walk in prepared.

Before Reprocessing Begins: The Setup Sessions

EMDR does not start with eye movements. Before any reprocessing happens, your therapist will spend one or more sessions on preparation. During these early sessions, you will:

Share your history. Your therapist will ask about the experiences that brought you to therapy, your current symptoms, and your broader life history. This helps them identify which memories to target and in what order. You will not need to describe traumatic events in graphic detail — an overview is sufficient.

Learn how EMDR works. Your therapist will explain the Adaptive Information Processing model, how bilateral stimulation works, and what to expect during reprocessing. This is a good time to ask questions and voice any concerns.

Build stabilization skills. Before accessing difficult memories, you need tools to manage distress. Your therapist will teach you grounding techniques — a "safe place" visualization, breathing exercises, or containment strategies — that you can use during and between sessions if emotions become overwhelming.

This preparation phase is not optional. It is a critical part of the protocol that ensures you are ready for the reprocessing work.

The Reprocessing Session: Step by Step

Once your therapist determines you are prepared, a typical reprocessing session unfolds like this:

Identifying the Target

Your therapist helps you select a specific memory to work on. For each target memory, you identify:

• An image that represents the worst part of the experience
• A negative belief about yourself connected to the memory (such as "I am powerless" or "I am not safe")
• A positive belief you would prefer to hold (such as "I have choices now" or "I am safe")
• The emotions you feel when you bring up the memory
• Where you feel it in your body — tightness in the chest, tension in the shoulders, a knot in the stomach
• A distress rating from 0 to 10 (called the Subjective Units of Disturbance, or SUD)

Bilateral Stimulation Begins

With the target memory in mind, your therapist begins bilateral stimulation. The most common form is guided eye movements — your therapist moves their fingers or a light bar back and forth, and you follow with your eyes. Other options include alternating tapping on your knees or hands, or audio tones that alternate between ears.

Each set of bilateral stimulation typically lasts 20 to 30 seconds. During this time, you hold the target memory loosely in awareness while noticing whatever comes up — images, thoughts, emotions, body sensations.

The Processing

After each set, your therapist pauses and asks, "What do you notice?" You briefly share whatever came up. You do not need to narrate a story — a few words are enough. Your therapist then says, "Go with that," and starts another set of bilateral stimulation.

This is where things can feel surprising. During reprocessing, your mind may jump to related memories, different emotions, new insights, or physical sensations. This is normal and expected. Your brain is making connections and processing the material in its own way. Your therapist is there to guide the process, not to direct it.

Checking In

Periodically, your therapist will bring you back to the original target memory and ask you to rate your distress level again. Over the course of the session, most people notice that the distress number drops. The memory does not disappear — but it starts to feel different. Less charged. More like something that happened in the past rather than something happening right now.

Installing the Positive Belief

Once the distress associated with the target memory has been reduced, your therapist helps you strengthen the positive belief you identified earlier. You hold the target memory together with the positive belief while doing additional bilateral stimulation, allowing the new belief to become associated with the old memory.

Body Scan

Your therapist asks you to think of the target memory and scan your body for any remaining tension or discomfort. If anything comes up, additional bilateral stimulation is used to process it. The goal is for the memory to feel neutral or resolved not just cognitively, but physically.

Closure

Every session ends with a stabilization exercise to ensure you leave feeling grounded and safe. Your therapist may guide you through the safe place visualization or a breathing exercise. They will also prepare you for what might happen between sessions — sometimes processing continues after you leave, which can show up as vivid dreams, new memories surfacing, or shifts in mood.

What It Feels Like

People describe the experience of EMDR reprocessing in different ways. Common descriptions include:

• Watching a movie of the memory rather than being inside it
• The memory becoming "dimmer" or "farther away"
• Sudden insights or connections to other experiences
• Waves of emotion that rise and then pass
• A sense of the body releasing or relaxing

It is important to know that EMDR can be emotionally intense. You may cry, feel anger, or experience physical sensations during a session. This is the processing happening, and it is a normal part of the work. Your therapist is trained to help you stay within a manageable range of emotion.

How Many Sessions Does It Take?

The total number of EMDR sessions varies widely. Some people with a single traumatic event can fully process it in 3 to 6 reprocessing sessions. Those with complex trauma or multiple target memories may need 12 or more sessions. The preparation and stabilization phases add additional sessions at the beginning of treatment.

Each reprocessing session typically lasts 60 to 90 minutes. Some therapists offer extended sessions of up to two hours to allow more time for processing and closure.

What Happens Between Sessions

Your therapist may ask you to keep a brief log of any notable experiences between sessions — dreams, memories that surface, emotional shifts, or changes in how you react to triggers. This information helps guide the next session. Unlike some therapies, EMDR typically does not involve homework assignments or worksheets.

Is EMDR Right for You?

EMDR is most strongly supported for PTSD and trauma-related difficulties, but it is increasingly used for anxiety, depression, phobias, and other conditions rooted in distressing life experiences. If you are considering EMDR, look for a therapist who is EMDRIA-certified or has completed an EMDRIA-approved training program.

Walking into your first session with a clear picture of what to expect can make the experience less intimidating — and help you engage more fully in the process.