What Is EMDR Therapy? A Beginner's Guide
If you have heard someone mention EMDR, you may know that eye movements are involved but still have no idea what happens in a session. The full name, Eye Movement Desensitization and Reprocessing, can make the therapy sound highly technical. In practice, EMDR is a structured form of psychotherapy designed to help the brain process experiences that still feel emotionally charged, physically activating, or difficult to integrate.
EMDR was originally developed to treat trauma and is recognized as an evidence-based treatment for posttraumatic stress disorder. Clinicians may also incorporate it into broader treatment plans when distressing experiences, negative beliefs, or recurring triggers continue to shape a person's present life. Whether it is a fit depends on the individual, the concern, readiness, and a trained clinician's assessment.
Why can past experiences still feel present?
Most memories settle into the past. You can remember what happened without feeling as though it is happening again. Distressing experiences can sometimes remain linked with the emotions, body sensations, and beliefs that were present at the time. A current cue may then activate an old response, even when you logically know you are safe now.
This may show up as anxiety, avoidance, shame, a strong startle response, emotional numbness, recurring images, or a belief such as I am not safe, I am powerless, or it was my fault. EMDR aims to support adaptive processing so the memory can become less disruptive and more fully connected with present-day perspective.
What happens during EMDR?
During the processing portions of EMDR, a client briefly notices an upsetting memory or another treatment target while also engaging in bilateral stimulation. Bilateral stimulation alternates attention from one side to the other. This may involve following a therapist's fingers with the eyes, listening to alternating tones, or using alternating taps.
The therapist guides the process in short sets and checks in about what the client notices. Thoughts, images, emotions, body sensations, or new associations may arise. The client does not have to describe every detail of an experience aloud. The work is paced, and the therapist helps the client stay oriented to the present.
The eight phases of EMDR therapy
History taking and treatment planning. You and your therapist discuss your history, current symptoms, goals, strengths, and possible treatment targets.
Preparation. You learn about the process and practice strategies for grounding, emotional regulation, and returning to the present.
Assessment. You identify the memory or target, an image, a negative belief, a preferred positive belief, emotions, and body sensations connected with it.
Desensitization. You notice the target while engaging in sets of bilateral stimulation, with pauses to report what is emerging.
Installation. You strengthen a more adaptive positive belief connected with the memory.
Body scan. You notice whether any distress or tension remains in the body when you bring the memory and positive belief to mind.
Closure. The therapist helps you return to a settled state before the session ends, whether processing is complete or will continue later.
Reevaluation. At a later session, you review what has changed and decide what needs attention next.
Will I have to relive the trauma?
EMDR does involve bringing aspects of a distressing memory to mind, so discomfort can occur. It should not be a process of being pushed into overwhelming detail without preparation or choice. A responsible clinician assesses readiness, explains what to expect, develops resources with you, and monitors your level of activation.
You can ask to pause at any time. You and your therapist can adjust pacing, spend more time in preparation, or consider another treatment approach. Trauma treatment is not one size fits all.
How long does EMDR take?
There is no universal number of sessions. The timeline depends on the concern, the number and complexity of treatment targets, current stressors, available support, and how much preparation is needed. A single incident may require a different course of treatment than repeated or developmental trauma.
EMDR can take place within standard therapy sessions or, for appropriate clients, in an extended intensive format. Longer sessions can offer more uninterrupted time for preparation, processing, and integration, but they are not automatically the best choice for everyone.
How do I find a qualified EMDR therapist?
Ask about the clinician's EMDR training, certification, consultation, and experience with your particular concern. You can also ask how they assess readiness, how they support regulation before and after processing, and how EMDR fits into the broader treatment plan.
Brooke Osterhoudt is an EMDR certified psychotherapist with more than 20 years of clinical experience. She integrates EMDR with relational, attachment-focused, and mind-body approaches, tailoring the pace and structure of therapy to the person rather than applying a single method to every concern.
