What Exactly is EMDR Therapy and How Does it Work?

EMDR therapy is a structured eight‑phase treatment that guides you to briefly recall traumatic memories while engaging in rhythmic left‑right stimulation, allowing your brain to reprocess the memories so they lose their emotional charge and deliver faster trauma relief for many Canadians.

Gloria Segovia
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Key Takeaways for EMDR Therapy Workings.

  • EMDR therapy is an eight‑phase, structured trauma treatment that helps the brain reprocess distressing memories.
  • It uses bilateral stimulation (eye movements, taps, or tones) to support natural memory processing.
  • You stay fully awake and in control throughout the process, unlike hypnosis.
  • EMDR is shown to provide faster symptom relief than many traditional talk therapies.
  • It’s effective for PTSD and may also help with anxiety, grief, and emotional dysregulation.
  • Sessions are safe, client‑led, and can be done in person or through secure online solutions.
  • EMDR helps reduce emotional intensity, improve daily functioning, and restore a sense of safety.

🎯 EMDR therapy rewires how your brain stores trauma, helping you heal faster by combining targeted memory recall with simple left‑right stimulation.

👉 Ready to take the next step? Learn more about EMDR therapy at AERCS and how to book your free 15-minute phone consultation.

Infographic showing the 8 phases of EMDR therapy, including history taking, preparation, assessment, desensitisation, installation, body scan, closure, and re-evaluation.

Eye Movement Desensitisation and Reprocessing, or EMDR therapy, is a structured psychological treatment that helps your brain reprocess painful memories so they lose their emotional punch, and it does this by pairing focused recall with left‑right sensory input such as guided eye movements, gentle taps, or alternating sounds. In other words, you stay fully awake and in control while your memory system “files away” the distress, often achieving relief faster than many talk‑based approaches.

How EMDR Helps the Brain Heal Itself.

Adaptive Information Processing in Plain Language.

Think of trauma like a file that never got stored properly. EMDR gives that file a second chance to be sorted, using bilateral stimulation to keep one foot in the present while your mind revisits the past. Functional MRI studies show decreased amygdala activation and stronger integration between thinking and emotional centres after treatment.

Why Bilateral Stimulation Matters.

Researchers believe the rhythmic left‑right input taxes working memory just enough to take the sting out of frightening images, similar to how humming a tune lowers anxiety before a presentation. A 2023 meta‑analysis reported significant symptom drops when bilateral stimulation was included versus omitted.

The Eight Phases of EMDR Therapy.

  1. History Taking and Case Formulation.
  2. Preparation and Stabilisation.
  3. Assessment of Target Memory.
  4. Desensitisation with Bilateral Stimulation.
  5. Installation of a Positive Belief.
  6. Body Scan for Residual Tension.
  7. Closure and Grounding.
  8. Re‑evaluation at the Next Session.

Each phase builds on the last, so you move from gathering safe‑coping tools to fully integrating calm responses when you recall the original event.

What an EMDR Session Looks Like.

  • Check‑in: You and I review current stress and pick a single target memory.
  • Bilateral Sets: I guide your eye movements or provide tactile buzzers for about 30 seconds at a time while you notice whatever comes up.
  • Brief Reports: Between sets you share images, thoughts, body sensations, or emotions so I can adjust pacing.
  • Grounding: We end with breathing, visualising a safe place, or light stretching so you leave feeling steady, not flooded.

Sessions run 60 to 90 minutes, and single‑incident trauma can resolve in as few as six meetings, while complex trauma may need several months.

Evidence and Results You Can Expect.

  • Fast Symptom Relief: Over 30 randomised controlled trials show EMDR reduces post‑traumatic stress faster than many standard therapies.
  • Not Just for PTSD: Recent studies find benefits for depression, anxiety, and grief.
  • Client Control: Unlike hypnosis, you remain alert and can pause at any time.
  • Whole‑Body Change: Many people notice better sleep, fewer headaches, and calmer relationships within weeks.

Practical Tips for Choosing an EMDR Therapist in Dufferin and the GTA.

  1. Check Credentials: Look for EMDR Canada or EMDRIA certification.
  2. Ask About Experience: Especially with your type of trauma.
  3. Assess Fit: A brief phone call can reveal whether the therapist feels supportive and clear.
  4. Plan Logistics: Consider travel from Orangeville or opt for secure video sessions if that suits your schedule.

Taking the Next Step.

Ready to explore how EMDR can help you feel safe in your own mind again? Visit our Trauma Therapy page to learn more about EMDR therapy and book your complimentary 15‑minute phone consultation today.

What makes EMDR therapy different from standard talk therapy?

EMDR therapy combines memory recall with bilateral stimulation, which speeds up processing and often reduces session numbers.

Is EMDR therapy safe if I feel highly anxious?

How many EMDR therapy sessions will I need?

Can EMDR therapy be done online?

Will EMDR therapy erase my memories?

EMDR Readiness Self‑Screen

These questions reflect what an EMDR therapist may explore to decide whether EMDR therapy could help you. Please answer based on your experience in the past month unless stated otherwise.

1. Do you experience intrusive memories, flashbacks or distressing images related to a disturbing or traumatic event?

2. Do certain sounds, smells, places or situations trigger strong emotional or physical reactions that feel hard to control?

3. Do you notice negative core beliefs about yourself, for example, “I am powerless”, “I am not safe” or “I am to blame”, that are linked to past experiences?

4. Do you avoid thoughts, feelings or conversations about a painful event, or do you avoid activities and places that remind you of it?

5. Do you feel hypervigilant, on edge or easily startled, or do you have persistent difficulty relaxing or sleeping?

6. When you think of the event, do you feel strong body sensations such as tightness in your chest, nausea, shaking or rapid heartbeat?

7. Have these symptoms interfered with your work, school, relationships or daily functioning?

8. Do you feel stuck in therapy or self-help efforts, repeating the same story without relief?

9. Are you generally able to stay present and tolerate moderate emotional discomfort when supported by a therapist?

10. Do you have at least one current internal or external coping resource, for example, relaxation skills, supportive relationships or grounding techniques?

11. Are you currently experiencing active psychosis (hallucinations, delusions, confused thinking), unmanaged substance withdrawal or immediate risk of self-harm that would require stabilisation first?

12. Have you identified a specific disturbing memory or a target issue that you would like to resolve?

Note: This questionnaire is educational only and does not replace a full clinical assessment. If you answered Yes to safety concerns or feel unstable, please contact emergency services or a crisis line, then follow up with a licensed mental health professional.

Take the First Step Toward Healing Today

Discover the transformative power of EMDR therapy with Gloria, an experienced and compassionate psychotherapist dedicated to helping you process trauma, reduce anxiety, and reclaim your life.

Fill out the form below to connect directly with Gloria and start your
journey toward peace and clarity. Your healing begins here.








    About the Author

    Gloria Segovia, SSW, BA, BSW (Spec Hons), MSW, RSW, RP, is a bilingual (English, Spanish) EMDR psychotherapist and clinical social worker with 15+ years of trauma-informed care for children, youth, families and couples. The principal and founder of AERCS Therapy, she integrates EMDR, Solution-Focused, Cognitive Behavioural Therapy, Emotion-Focused Therapy and the Gottman Method for couples counselling, to deliver strengths-based, culturally inclusive support. Gloria has practised in both private practice and hospital settings, and she supervises BSW/MSW students and emerging clinicians through York University. She is registered with the Ontario College of Social Workers and Social Service Workers and the College of Registered Psychotherapists of Ontario.