EMDR Therapy Explained: How It Works and What It Treats
EMDR therapy is a structured form of psychotherapy used most often for trauma and post-traumatic stress disorder. It uses an eight-phase process that combines brief attention to distressing memories with bilateral stimulation, such as guided eye movements or tapping, while a therapist helps you stay grounded and work at a manageable pace.
Key Takeaways
EMDR stands for Eye Movement Desensitization and Reprocessing and uses a structured eight-phase treatment model.
The strongest evidence for EMDR is for PTSD and trauma-related symptoms, although clinicians may use it for other concerns as appropriate.
EMDR does not require you to describe every detail of a traumatic event in depth, but the work can still feel emotionally intense.
A typical course is individualized. Preparation, the number of target memories, and your response to treatment all affect the timing.
Brookhaven offers EMDR in person in Milton and Burlington, and virtually across Ontario, with free 15-minute consultations to help you decide whether the approach and therapist are the right fit.
What EMDR Stands for and the Theory Behind It
EMDR stands for Eye Movement Desensitization and Reprocessing, and it is a structured psychotherapy designed to help people process distressing experiences. EMDR therapy is an eight-phase treatment approach that asks you to briefly focus on a troubling memory while engaging in bilateral stimulation, usually side-to-side eye movements, taps, or alternating tones.
The American Psychological Association describes EMDR as a trauma-focused therapy in which attention to a traumatic memory is paired with bilateral stimulation. The approach was developed by psychologist Francine Shapiro in the late 1980s and is commonly explained through the Adaptive Information Processing model. That model proposes that some distressing experiences remain insufficiently processed and continue to trigger strong emotional, cognitive, and physical reactions in the present.
The exact mechanism is still being studied. Researchers continue to debate how much of EMDR's effect comes from eye movements, memory reconsolidation, exposure, working-memory demands, or other parts of the full protocol. So it is more accurate to say that EMDR is an evidence-supported treatment for PTSD than to claim that eye movements have a single proven effect on the brain.
How a Typical EMDR Session Unfolds Step by Step
A typical EMDR session follows an eight-phase framework, but not every phase happens in one appointment. Your therapist may spend more time on preparation or move more slowly if you need additional support before working directly with a distressing memory.
The EMDR International Association describes the process in eight phases:
1. History and Treatment Planning: You and your therapist identify concerns, patterns, strengths, and potential memories or situations to target.
2. Preparation: You learn what to expect, practise grounding or other coping strategies, and establish a plan for staying within a manageable level of distress.
3. Assessment: You identify a target memory and notice the image, belief, emotion, and body sensations associated with it.
4. Desensitization: You briefly hold the target in mind while following bilateral stimulation and noting what changes from one set to the next.
5. Installation: You strengthen a more adaptive or helpful belief associated with the memory.
6. Body Scan: You notice whether any physical tension or discomfort remains when you think about the target.
7. Closure: The therapist helps you end the session in a sufficiently settled state, even if the target is not yet fully processed.
8. Reevaluation: At a later session, you review what has changed and decide what still needs attention.
EMDR is collaborative. You can ask to slow down, pause, or spend more time developing coping skills. The goal is not to push you through a memory as quickly as possible. It is to keep the work structured, tolerable, and aligned with the goals you set with your therapist.
Which Experiences and Symptoms Respond Well to EMDR
EMDR has the strongest evidence for PTSD and trauma-related symptoms. Major clinical guidelines include EMDR among recommended trauma-focused psychotherapies for PTSD, which is why it is most often considered when distress is linked to traumatic or deeply disturbing experiences.
In practice, a therapist may also consider EMDR when current anxiety, fear, shame, intrusive memories, nightmares, avoidance, strong bodily reactions, or negative beliefs appear linked to past events. It may be used for single-event trauma, repeated trauma, accidents, violence, loss, frightening medical experiences, or other memories that still feel emotionally active.
EMDR is also used for concerns beyond PTSD, including certain anxiety presentations, phobias, and distress linked to depression or grief. The evidence base is not equally strong for every condition, and EMDR is not automatically the best fit simply because a difficult memory is present. Your therapist should consider your symptoms, goals, history, readiness, and other treatment options before recommending it.
What It Feels Like During and After an EMDR Session
During EMDR, you stay awake, aware, and involved in the process. You may notice images, thoughts, emotions, or body sensations shift as you move through short sets of bilateral stimulation, and you usually report what you notice without needing to give a long, detailed retelling of the event.
Some people describe the work as intense yet contained. Others notice that a memory begins to feel less vivid, less emotionally charged, or more distant. There is no required reaction, and a session does not have to produce a dramatic breakthrough to be useful. The therapist should keep checking your level of distress and help you stay oriented to the present.
After a session, you may feel tired, calm, emotional, thoughtful, or simply normal. New memories, dreams, or connections may surface between appointments. Your therapist can tell you what to notice, how to use grounding strategies if needed, and when to contact them if something feels difficult to manage.
How Brookhaven's Licensed and Supervised Therapists Deliver EMDR Across Ontario
Brookhaven delivers EMDR through therapists with EMDR training, offering in-person and virtual options depending on the clinician, your location, and whether online trauma work is clinically appropriate for you. Brookhaven offers EMDR in person in Milton and Burlington, and virtually for clients located elsewhere in Ontario, depending on the clinician and your location.
You can start by reviewing Brookhaven's EMDR therapy service, browsing the therapist team, or looking at virtual therapists if you live elsewhere in Ontario. Because trauma work depends on fit, preparation, privacy, and pacing, virtual EMDR should be discussed with the therapist rather than assumed to be the right format for everyone.
At Brookhaven, we make therapist fit part of the initial process. Every therapist offers a free 15-minute consultation, so you can ask about EMDR training, experience with your concern, session format, fees, and what the first few appointments would look like before you commit to ongoing care.
Frequently Asked Questions About EMDR Therapy
Do I Need to Have a Specific Trauma Diagnosis to Benefit From EMDR?
No. You do not always need a formal PTSD diagnosis to discuss EMDR with a therapist. EMDR may be considered if distressing memories or experiences are contributing to current symptoms. The therapist should still assess whether EMDR is appropriate for your goals, stability, history, and current needs before starting reprocessing.
How Many EMDR Sessions Does It Typically Take to See Results?
There is no fixed number of sessions that guarantees results. The APA notes that EMDR for PTSD is often delivered over about 6 to 12 sessions, but some people need fewer and others need more. Timing depends on how many memories are targeted, how much preparation is needed, the complexity of the concern, and how you respond to treatment.
Is EMDR Available Virtually or Only in Person?
EMDR can be delivered virtually for some clients. Brookhaven offers in-person EMDR in Milton and Burlington, and virtual EMDR for clients elsewhere in Ontario, depending on the clinician. A virtual format works best when you have sufficient privacy, reliable technology, and a therapist who believes online delivery is appropriate for your situation.
Can EMDR Help With Anxiety and Depression, Not Just Trauma?
EMDR may help some people whose anxiety or depressive symptoms are closely linked to distressing memories, loss, fear, or trauma. The strongest guideline support is for PTSD, and the evidence varies for other conditions. A therapist may recommend EMDR, CBT, another approach, or a combination, depending on what drives the symptoms and what suits you best.
Conclusion
EMDR therapy provides a clear structure for trauma work: preparation first, carefully paced memory processing, and regular checks on what is changing. It has strong evidence for PTSD, but whether it is the right approach for you depends on your symptoms, goals, history, and therapist fit. If you are curious about EMDR, a short consultation can help you ask practical questions before making a decision.
Book Your Free 15-Minute Consultation with Brookhaven Psychotherapy. There is no commitment or pressure, just a chance to see if EMDR and the therapist are the right fit and to take a clearer first step toward finding your way back to ease.
