EMDR Therapy Explained: The 8 Phases + What to Expect

By Anna Green, LMHC · Medically reviewed by Rebeca Da Silva De Goes, RMHCI · Updated May 2026

EMDR (Eye Movement Desensitization and Reprocessing) is an evidence-based psychotherapy for trauma, PTSD, and certain anxiety disorders. A licensed therapist guides you through structured recall of a distressing memory while you track a back-and-forth cue with your eyes — typically the therapist’s fingers, a light bar, or paired hand taps. The bilateral stimulation lets your brain reprocess the memory so it stops triggering the same emotional and physical reaction. This guide covers what EMDR is, the eight phases of treatment, who it helps, what a session feels like, how long it takes, and how it compares to CBT and exposure therapy.

What is EMDR therapy?

EMDR is short for Eye Movement Desensitization and Reprocessing. It was developed in 1987 by psychologist Francine Shapiro after she noticed that walking through a park while thinking about distressing memories seemed to dampen her emotional reaction. Her 1989 paper formalized the approach, and over the following three decades EMDR was studied extensively — particularly for post-traumatic stress disorder.

Today EMDR is recommended for PTSD by the American Psychological Association, the World Health Organization, the U.S. Department of Veterans Affairs, and the National Institute of Mental Health. It is one of two psychotherapies (alongside trauma-focused CBT) the APA gives its strongest evidence rating for PTSD.

EMDR is distinct from traditional talk therapy in three ways:

• You don’t have to talk about the memory in detail. EMDR processes traumatic material without requiring extensive verbal description.
• It uses bilateral stimulation — rhythmic side-to-side input (eye movements, taps, or tones) that appears to facilitate the brain’s natural processing of difficult material.
• It works in structured phases, not open-ended conversation. Each session has a defined target and clear endpoints.

How EMDR works: the eight phases

Standard EMDR is delivered in a documented eight-phase protocol developed by Shapiro and now maintained by the EMDR International Association (EMDRIA). A typical course takes 8 to 12 sessions, though complex trauma may require more.

Phase 1: History and treatment planning

The first session or two is intake. Your therapist takes a thorough trauma history, screens for what’s appropriate to target with EMDR, identifies any dissociative symptoms or instability that would need to be stabilized first, and builds a treatment plan with you. Not every memory needs to be processed — your therapist helps prioritize.

Phase 2: Preparation

Before processing anything difficult, you learn coping skills you can use during and between sessions: a “safe place” visualization, grounding exercises, and the calm-state resource your therapist will return to whenever a session gets activating. You also experience bilateral stimulation in a low-stakes way so you know what to expect.

Phase 3: Assessment

You identify a specific target memory — usually an image, the negative belief about yourself that comes with it (“I am powerless,” “It was my fault”), the positive belief you’d like to feel instead (“I am safe now,” “I did the best I could”), and where you feel the memory in your body. You rate the distress on a 0-10 scale (Subjective Units of Disturbance, or SUDs).

Phase 4: Desensitization

The core processing phase. While you hold the target memory in mind, your therapist starts bilateral stimulation — typically 24-30 seconds of eye movements, then a pause. Between sets, the therapist asks you to notice what comes up. The memory may shift; new associations may surface; the emotional intensity often changes. You repeat sets until the SUD rating drops to 0 or 1.

Phase 5: Installation

Once the memory is desensitized, the positive belief you identified in Phase 3 is “installed” — paired with bilateral stimulation while you hold the memory and the new belief together. Goal: the new belief feels true (rated 7 on a 1-7 Validity of Cognition scale) when you think about the memory.

Phase 6: Body scan

You scan your body for any residual tension or activation related to the memory. Any remaining sensations are processed with additional bilateral stimulation until the body is fully clear.

Phase 7: Closure

Every session ends with you in a stable, oriented state — not mid-process. If the work isn’t complete (most aren’t on the first pass), your therapist uses calming techniques to ground you and gives instructions for the week between sessions.

Phase 8: Reevaluation

The next session starts with re-checking the previous target. SUD ratings often drop further between sessions as the brain continues processing. New targets are identified as needed, and the cycle repeats.

Who EMDR helps

EMDR has the strongest evidence base for post-traumatic stress disorder. A 2014 meta-analysis in JAMA Psychiatry and dozens of subsequent randomized trials show EMDR producing remission rates of 70–90% in single-incident PTSD, often in fewer sessions than trauma-focused CBT.

Beyond PTSD, EMDR is used as an adjunctive or primary treatment for:

• Complex trauma and childhood abuse — typically requires more sessions and careful stabilization first
• Phobias, especially those rooted in a specific incident
• Panic disorder — there’s a Thrive-specific deep-dive at How EMDR Tackles Panic
• Grief and bereavement, particularly traumatic loss
• Chronic pain — see EMDR vs CBT for Chronic Pain
• Performance anxiety and “stuck” emotional patterns traceable to a specific event

EMDR is generally not first-line for: generalized anxiety disorder, OCD without a trauma component, depression without trauma, eating disorders, or active substance use disorder.

EMDR for PTSD: combat, sexual trauma, single-incident, and complex

PTSD is the diagnosis EMDR was developed for and where its evidence is strongest. The 2017 APA Clinical Practice Guideline gives EMDR a “conditional recommendation” for PTSD in adults — one of only four therapies that earned any positive recommendation in the rigorous review. The U.S. Department of Veterans Affairs and Department of Defense 2023 Clinical Practice Guideline places EMDR among the top-tier trauma-focused psychotherapies alongside Prolonged Exposure (PE) and Cognitive Processing Therapy (CPT).

How EMDR is applied depends on the type of PTSD presentation:

Single-incident PTSD (a discrete traumatic event)

The classic EMDR use case: one identifiable trauma — a car accident, an assault, a medical emergency, witnessing a death. This is where EMDR is fastest and most predictable. Randomized trials typically show meaningful symptom reduction within 4-8 sessions for single-incident trauma, with 70-90% of clients no longer meeting PTSD criteria at end of treatment.

Combat and military trauma

The VA has invested heavily in EMDR research and provides it routinely across the VHA system. Standard combat-trauma courses run 12 sessions; complex deployment histories may require more. Group EMDR formats developed for veterans (such as the EMDR Group Treatment Protocol or G-TEP) are increasingly offered at VA facilities and community providers. If you’re a veteran, ask about EMDR specifically — not every clinician at every VA facility is trained, and the wait varies by region.

Sexual trauma and assault

EMDR is well-validated for sexual assault PTSD and is one of the modalities specifically recommended by RAINN-affiliated and rape-crisis treatment programs. Sessions usually need longer (90-minute format) and may extend Phase 2 (preparation) significantly so the client has stabilization skills before processing begins. A trauma-informed EMDR clinician will pace processing carefully and will never push faster than the client’s window of tolerance allows.

Complex PTSD (multiple, prolonged, often relational trauma)

For complex PTSD — repeated childhood abuse, prolonged domestic violence, sustained interpersonal trauma — EMDR follows a phase-based model that prioritizes stabilization first, processing second, integration third. The preparation phase may run for weeks or months before any traumatic memory is touched, focused on building emotion regulation, dissociation management, and a stable therapeutic relationship. Treatment courses of 6-18 months are typical, sometimes longer. Complex PTSD usually requires an EMDR clinician with specific complex-trauma training, not just basic EMDR certification.

PTSD with comorbid substance use, dissociation, or depression

EMDR can be effective in these cases but requires more careful screening and pacing. Active substance use must be addressed first or in parallel. Dissociative disorders need a clinician trained in modified EMDR protocols (such as the Standard EMDR + Dissociation protocol). Depression can be addressed concurrently — many clients see depressive symptoms decrease as trauma is processed, but adjunctive treatment may still be needed.

EMDR for anxiety, phobias, and panic disorder

Although EMDR was developed for trauma, its underlying mechanism — helping the brain reprocess “stuck” emotional material — applies to a broader range of anxiety presentations, particularly when symptoms can be traced to a specific event or set of events.

Specific phobias

Phobias rooted in a discrete experience (a dog bite, a near-drowning, a panic episode in a public place) often respond rapidly to EMDR. The target is the original sensitizing event plus any subsequent reinforcing incidents. Published case series show meaningful symptom reduction within 3-6 sessions for single-trigger phobias.

Panic disorder

For panic disorder — particularly when panic attacks have a clear “first time” memory that became the template — EMDR can address both the original anxiety and the secondary fear-of-fear cycle. The work targets (1) the first major panic memory, (2) the body sensations the client now reads as danger signals, and (3) the negative self-belief that developed (often “I’m not safe in my own body”). Thrive has a deeper write-up at How EMDR Tackles Panic.

Performance anxiety, social anxiety, and “stuck” anxious patterns

When social or performance anxiety can be traced to a specific humiliating, frightening, or shaming incident — being bullied in a particular class, a public failure that wired in a self-narrative — EMDR is often effective at uncoupling the present-day trigger from the original encoded memory. For generalized social anxiety without an identifiable origin event, CBT (and specifically Cognitive Behavioral Therapy for Social Anxiety, or CBT-SAD) is typically a better fit.

What EMDR is not first-line for

Generalized anxiety disorder (GAD) without trauma roots, OCD, and obsessive thought patterns generally respond better to CBT — and for OCD specifically, Exposure and Response Prevention (ERP). EMDR is also not the recommended first-line for active eating disorders or substance use disorders, where stabilization protocols come first.

What a session actually feels like

EMDR sessions are typically 50 to 90 minutes — longer than standard talk therapy, because the processing phases need uninterrupted runway. The 90-minute session is more common, especially in intensive formats.

You stay fully awake and oriented throughout. There’s no hypnosis, no altered state, no medication. Your therapist sits at an angle from you so they can track your eyes with two fingers, a light bar, or run a tactile device (small pulsers in your hands that buzz alternately). Some clients prefer auditory bilateral stimulation through headphones.

During processing, people commonly report:

• The memory image becomes less vivid or shifts
• New connected memories surface — often older or unexpected
• Strong emotions move through quickly rather than getting stuck
• Physical sensations release — a clenched jaw softens, tight shoulders drop
• Insights arrive without effort (“I was 7. I didn’t have a choice.”)

Sessions can be emotionally intense, but the structured opening and closing phases keep you stable. Between sessions you may notice clearer dreams, more body fatigue, or unexpected memories surfacing — all normal signs of continued processing. Your therapist will give you grounding tools to use if anything feels overwhelming.

How EMDR differs from CBT and exposure therapy

The three most-studied trauma therapies — EMDR, trauma-focused CBT, and prolonged exposure — produce similar long-term outcomes in randomized trials. They differ in how they get there:

• EMDR processes traumatic memories with minimal verbal narrative, relying on the brain’s natural reprocessing facilitated by bilateral stimulation. Tends to be faster for single-incident trauma. Full EMDR vs CBT comparison.
• Trauma-focused CBT involves cognitive restructuring (challenging trauma-related beliefs), psychoeducation, and graduated exposure. More homework-heavy.
• Prolonged exposure repeatedly revisits the traumatic narrative until the emotional response habituates. Detailed comparison: EMDR vs Exposure Therapy.

The best choice depends on personal preference, the type of trauma, and what’s available locally. Many trauma-informed therapists are trained in more than one modality.

How long EMDR takes

For a single recent traumatic event (a car accident, an assault, a medical procedure), EMDR often produces meaningful symptom reduction within 4 to 8 sessions. The Department of Veterans Affairs reports 75-90% PTSD remission rates among combat veterans completing a standard course of 8-12 sessions.

Complex trauma — multiple incidents, childhood abuse, ongoing exposure to threat — typically takes longer, often 6 to 18 months. The preparation phase (Phase 2) may be significantly extended to build stabilization skills before any processing begins.

Many clients see meaningful change between sessions as the brain continues processing — meaning the actual “work” extends beyond the 50-90 minutes in the office.

Risks, side effects, and who shouldn’t try EMDR

EMDR is generally well-tolerated, but not universally safe. The most common short-term effects include vivid dreams, fatigue, and temporary emotional intensity in the days after a session — all of which usually resolve within a week.

EMDR may not be appropriate or may need to be delayed if you:

• Have active dissociative symptoms that aren’t yet stabilized
• Are in an unsafe environment where you cannot return to safety after sessions
• Are using substances heavily enough that processing is unreliable
• Have certain seizure disorders (where rapid visual stimulation could trigger episodes — tactile or auditory bilateral stimulation can be used instead)
• Are in acute crisis or actively suicidal — stabilization comes first

A trained EMDR therapist will screen for these in Phase 1 and adjust the plan accordingly. Full coverage of risks: EMDR Therapy Side Effects + Risks: What to Expect.

The evidence base for EMDR

EMDR is one of the most-studied psychotherapies in existence. The strongest evidence is for PTSD, where randomized controlled trials consistently show EMDR matching or outperforming the active comparison treatment.

Mechanism is still debated. The original hypothesis was that eye movements directly facilitate memory reconsolidation. Current research suggests bilateral stimulation taxes working memory in a way that reduces the vividness of recalled images, allowing them to be re-encoded with less emotional charge. Full review of the EMDR evidence base.

Finding a qualified EMDR therapist

EMDR is a specialized technique that requires post-graduate training beyond a clinical license. When looking for a provider:

• Look for an EMDR International Association (EMDRIA) Certified Therapist or EMDRIA Approved Consultant — both designations require completing EMDRIA-approved basic training plus supervised consultation hours
• Confirm they have specific experience with your trauma type (combat, childhood abuse, medical trauma, etc.)
• Ask about session length — proper EMDR sessions usually need 60-90 minutes, not 50
• Confirm they follow the standard 8-phase protocol rather than abbreviated versions

Insurance coverage for EMDR is generally good. Most commercial plans cover it as standard outpatient psychotherapy under the same billing codes as other modalities.

What to ask a potential EMDR therapist

EMDR is a specialized technique and quality varies significantly across providers. These are the questions worth asking on a first phone call or intake session:

1. What is your EMDRIA training status? EMDRIA-Certified Therapist or EMDRIA Approved Consultant indicates completion of the full EMDRIA-approved curriculum plus supervised consultation. “Completed EMDR training” without a designation may mean a weekend workshop only.
2. How many EMDR sessions have you delivered? Volume isn’t everything, but a clinician who has done 100+ EMDR sessions has worked through enough variation to handle most presentations.
3. Do you follow the standard 8-phase protocol? The answer should be yes. Abbreviated EMDR variants exist but should not be the default for trauma.
4. What’s your experience with my specific concern? Combat trauma, sexual assault, childhood abuse, medical trauma, and single-incident PTSD each have nuances. Match matters.
5. How long are your sessions? 50 minutes is borderline for proper EMDR processing — 60-90 minutes is preferable, particularly during desensitization phases.
6. How do you handle dissociation? A confident answer here matters. If the clinician doesn’t have a clear screening and management approach, look elsewhere — especially if you have complex trauma history.
7. Do you use the SUD and VoC scales? These are the standard measurement tools (0-10 distress, 1-7 belief validity) and a sign the clinician is following the protocol rather than improvising.
8. What’s your approach if a session becomes overwhelming? Look for specific containment techniques — grounding, sensory anchoring, return to a “safe place” resource. Vague answers are a red flag.
9. What does between-session support look like? Especially during active processing, can you reach them if something surfaces? Brief check-ins or crisis protocols matter.
10. How do you decide when to end treatment? Look for clear, measurable goals — not “we’ll see how it goes.”

If a potential therapist becomes defensive or vague about these questions, that itself is information.

Cost and insurance coverage for EMDR

EMDR is billed under the same procedure codes as other psychotherapy — most commonly CPT 90834 (45-minute individual psychotherapy) or CPT 90837 (60-minute individual psychotherapy). Insurance does not pay differently for EMDR than for other modalities, and pre-authorization is not typically required.

What insurance covers

Most commercial health plans cover EMDR as standard outpatient mental health care. Coverage details to verify with your specific plan:

• Your behavioral health benefit — most plans cover outpatient psychotherapy with a copay (typically $20-$60 per session) or coinsurance (typically 20-30% after deductible)
• Your deductible — whether you’ve met it for the year affects out-of-pocket cost
• Session limits — most commercial plans no longer impose strict session limits since the Mental Health Parity Act, but some still review long courses of care
• In-network vs out-of-network — if your preferred EMDR clinician is out-of-network, your plan may reimburse 50-70% of the session fee after deductible

Medicare and Medicaid generally cover EMDR through approved providers, though state-by-state Medicaid variation exists.

Self-pay rates

If you’re paying out-of-pocket, typical EMDR session rates in 2026 range from $150 to $250 for a 60-minute session, with rates often higher (up to $350) in major urban markets and for EMDRIA-Certified Consultants.

HSA and FSA eligibility

EMDR sessions are eligible expenses under Health Savings Accounts (HSA) and Flexible Spending Accounts (FSA) when delivered by a licensed mental health professional. Keep itemized receipts for tax purposes.

Reduced-fee and sliding-scale options

If full-fee EMDR isn’t financially feasible, options include: community mental health centers that often have EMDR-trained clinicians at sliding-scale rates, university psychology training clinics where supervised graduate students deliver EMDR at reduced cost, and EMDRIA’s Trauma Recovery Network which provides pro-bono EMDR for first responders, veterans, and survivors of recent major incidents.

Thrive verifies your insurance benefits at no cost — including for EMDR specifically — before you start. We’re in-network with most major commercial plans.

How EMDR fits into a higher level of care

For people whose trauma is severe enough that weekly outpatient sessions aren’t moving the needle, EMDR can be delivered inside an Intensive Outpatient Program (IOP) or Partial Hospitalization Program (PHP). The structure of multiple sessions per week provides:

• More frequent EMDR processing, often weekly or twice-weekly individual sessions
• Group therapy that uses the time between EMDR sessions to consolidate insight and build skills
• Real-time clinical support if a processing session brings up material that needs containment
• Coordination with a prescriber if medication is part of the plan — see How Medication and IOP Work Together

Thrive’s virtual IOP includes EMDR-trained clinicians and is structured to support the 8-phase protocol within a multi-modality treatment plan.

Online and virtual EMDR therapy

Virtual EMDR — delivered over video by a licensed EMDR clinician — has become standard practice since 2020 and is now supported by a growing body of evidence showing outcomes comparable to in-person delivery. Published trials and clinical reviews from EMDRIA confirm that telehealth EMDR can achieve the same symptom reduction as office-based sessions when the protocol is adapted correctly.

How bilateral stimulation works over video

The bilateral stimulation step — the core of EMDR — has four well-validated remote delivery methods:

• On-screen visual cues. Your therapist uses dedicated EMDR software (Bilateral Base, RemotEMDR, or similar) that shows a moving dot or light bar on your screen for you to track with your eyes.
• Audio bilateral stimulation. Alternating tones delivered through stereo headphones — typically a soft chime or tactile-feeling pulse moving between left and right ear.
• Self-administered tactile. The client taps their own knees or shoulders alternately under therapist guidance — sometimes called the “butterfly hug” variant.
• Tactile devices. Some clients use small hand-held pulser devices (TheraTapper, Bilateral Base hardware) that vibrate alternately, controlled either by the therapist remotely or on the client’s own timer.

What you need for virtual EMDR

A reasonably stable internet connection, a quiet private room where you won’t be interrupted, ideally a desktop or laptop (phones are usable but a larger screen helps with on-screen bilateral cues), and stereo headphones if your clinician is using audio bilateral stimulation. You’ll also need a “containment plan” — agreed-on grounding techniques you can use if processing is unexpectedly intense and the session needs to pause.

When virtual EMDR is not the right fit

Virtual EMDR may not be appropriate if you have significant dissociative tendencies that need in-person stabilization, if you live in an environment where you cannot guarantee privacy and safety during sessions, or if you’re in acute crisis where in-person support is needed. Your clinician should screen for these in Phase 1 before deciding telehealth is appropriate.

Thrive’s virtual IOP and outpatient programs deliver EMDR via telehealth as standard, with EMDRIA-trained clinicians and the necessary screening and pacing protocols built in. Verify if virtual EMDR is covered by your insurance.

EMDR for children and teenagers

EMDR is delivered to children as young as 3 using developmentally adapted versions of the standard 8-phase protocol. The EMDR International Association offers a specific certification for child and adolescent EMDR, and the practice has been validated for childhood trauma, post-traumatic stress in children of crisis-affected regions, and developmental trauma.

Key adaptations for younger clients:

• Shorter sessions, more variety. Sessions are typically 30-45 minutes for younger children and include play-based stabilization techniques, drawing, or storytelling as part of preparation.
• Different bilateral stimulation. Many child EMDR clinicians use butterfly hugs, alternating shoulder taps, or hand-buzzers rather than eye movements, since sustained visual tracking is harder for young attention spans.
• Parent or caregiver involvement. A trusted caregiver is often present for parts of sessions, especially in early phases, to help with co-regulation and to support the child between sessions.
• Story-based assessment. Identifying target memories and SUDs may be done through drawing or “tell me about the time when…” rather than the adult assessment format.

For teens (roughly 12 and up), the standard adult protocol is generally usable with minor modifications — most often around how the negative and positive cognitions are framed in age-appropriate language and how between-session stabilization is structured.

EMDR for children should be delivered by a clinician with specific child/adolescent EMDR training. Look for an EMDRIA-certified child EMDR therapist or one with documented post-licensure training in pediatric EMDR. Thrive’s adult IOP/PHP programs serve patients 18+; for pediatric EMDR we refer to our network of child-trained clinicians.

Frequently asked questions

Does EMDR actually work, or is it just placebo?

EMDR has been validated in over 40 randomized controlled trials for PTSD and is recommended as a first-line treatment by the APA, WHO, and VA. The mechanism is still being researched, but the outcomes are well-established. It’s not placebo. It is, however, a specific clinical technique that requires a trained therapist — random “DIY EMDR” videos on the internet are not the same thing.

How is EMDR different from hypnosis?

EMDR is not hypnosis. You remain fully conscious, oriented, and in control throughout the session. You can stop at any time. There’s no induction, no suggestion, no altered state. The bilateral stimulation is a neurobiological cue, not a hypnotic trance.

Can EMDR be done virtually?

Yes. Virtual EMDR is well-established and outcomes are comparable to in-person delivery. Bilateral stimulation can be delivered through guided video, on-screen visual cues, alternating audio tones through headphones, or self-tapping under therapist guidance. Thrive delivers EMDR within our virtual IOP and standard outpatient sessions.

How quickly will I see results?

Single-incident trauma often shows meaningful change within 4-8 sessions. Complex trauma takes longer. Some clients report a noticeable shift in a single session; others need several before momentum builds. Your therapist should be checking SUD ratings each session so progress is measurable.

What if a memory becomes overwhelming during a session?

Your therapist is trained to keep you in a “window of tolerance” — neither shut down nor flooded. If processing gets too intense, the therapist will pause the bilateral stimulation, switch to grounding techniques, and bring you back to a stable state before deciding whether to continue. Every session ends with closure to ensure you leave grounded.

Is EMDR covered by insurance?

Most commercial health plans cover EMDR as standard outpatient psychotherapy. EMDR sessions are billed under the same CPT codes (90834 or 90837) as other talk therapy, so the coverage rules are the same as any therapy session. See the cost and insurance section above for what to verify with your plan.

What’s the difference between EMDR and brainspotting?

Brainspotting is a derivative of EMDR developed by David Grand in the early 2000s. Both use bilateral or focused stimulation to access “stuck” emotional material; the key difference is that brainspotting works with a single fixed eye position (the “brainspot”) rather than tracking back-and-forth movement. Both have evidence support — EMDR’s evidence base is larger and longer-established, though brainspotting practitioners report similar outcomes. The right choice often comes down to clinician availability and personal preference.

Can I do EMDR while pregnant?

EMDR is generally considered safe during pregnancy and is sometimes recommended to address pregnancy-related anxiety, fear of childbirth, or trauma from a previous birth. Your clinician will screen for any specific contraindications and may adjust pacing — particularly avoiding deep emotional flooding in the third trimester. If you have a history of complex trauma or postpartum mood disorders, mention this so your clinician can adapt the protocol.

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Looking to start EMDR-based treatment at Thrive? Our virtual IOP and PHP programs include EMDR alongside CBT, DBT, and MBT, delivered by EMDRIA-trained clinicians. Free, confidential insurance verification.