What Is EMDR Therapy? A Plain-English Guide

If you've been told EMDR might help you, or you've been Googling “trauma therapy Scarborough,” you've probably come across the term. But what does it actually mean — and does it actually work?

Let me give you an honest, non-jargon explanation — as someone who uses EMDR with clients regularly and has seen what it can and can't do.

The Short Version

EMDR (Eye Movement Desensitization and Reprocessing) is a structured therapy that helps people process traumatic memories. Unlike traditional talk therapy, it doesn't require you to describe your trauma in detail. Instead, it uses something called “bilateral stimulation” — usually guided eye movements — to help the brain finish processing memories that got stuck during a traumatic event.

The result: the memory loses its emotional charge. You can recall it without the same level of terror, shame, or physical reaction. It moves from feeling like a present-tense threat to a past-tense event.

Why Do Traumatic Memories Get “Stuck”?

When something overwhelming happens, your brain's normal memory-processing system can be disrupted. Under extreme stress, the brain sometimes fails to complete its filing process — leaving the memory encoded with its original emotional intensity, physical sensations, and distorted beliefs (“I am not safe,” “It was my fault,” “I am broken”).

That's why, years after the event, a smell, a sound, or a sudden sound can trigger a response that feels like the trauma is happening right now. The brain never got the signal that it's over.

How Bilateral Stimulation Helps

During EMDR processing, the therapist guides your eye movements back and forth while you briefly hold the traumatic memory in mind. This bilateral stimulation is thought to activate both hemispheres of the brain simultaneously — similar to what happens during REM (rapid eye movement) sleep, which is when your brain naturally processes emotional experiences.

Over the course of processing, the memory becomes “digested.” Its emotional intensity decreases, the negative beliefs associated with it weaken, and it gets filed as a historical event rather than an ongoing emergency.

What Does an EMDR Session Actually Feel Like?

This is one of the questions I get most often. People imagine something hypnotic or clinical. It's neither.

In a typical processing session, you'll briefly focus on a distressing memory — not tell the story of it, just hold it in mind — while following my finger (or a light bar, or taps on your knees) back and forth. After each set of movements, I'll ask “what came up for you?” Often it's an image, a feeling, a body sensation, or a thought. You report it, and we continue.

It can feel strange at first. But most clients describe the experience as feeling like the memory is “moving” — becoming more distant, losing its grip. Some sessions are emotionally intense. Others are surprisingly calm. I pace each session to what you can handle.

Does EMDR Actually Work?

Yes — for most people dealing with PTSD and trauma, EMDR has a strong evidence base. It is endorsed by:

• The World Health Organization (WHO)
• Veterans Affairs Canada
• The American Psychological Association
• The International Society for Traumatic Stress Studies (ISTSS)
• The Canadian Psychological Association

Multiple randomized controlled trials show that EMDR produces significant reductions in PTSD symptoms — often in fewer sessions than traditional exposure-based therapies, and with lower dropout rates because clients don't need to describe their trauma in detail.

That said, EMDR is not a magic switch. Not every client responds the same way, and some types of trauma require more preparation and more sessions. The evidence supports its effectiveness — it doesn't guarantee a specific outcome for any specific person.

Who Can Benefit From EMDR?

• People with PTSD or acute stress responses
• Survivors of childhood trauma, abuse, or neglect
• First responders and veterans with occupational trauma
• People who've experienced accidents, assaults, or sudden loss
• People who have “tried everything” and still feel stuck
• Anyone whose past experiences continue to affect their daily functioning

Is EMDR Right for You?

The best way to find out is to have a conversation. During a free 20-minute consultation, I can ask about your history and help you determine whether EMDR makes sense — or whether a different approach would serve you better first.

EMDR isn't appropriate for everyone at every point. Some clients need stabilization work before trauma processing begins. Some do better with a different modality — like somatic therapy or IFS — entirely. I won't recommend EMDR because it's popular — I'll recommend it because it makes sense for your specific situation.

Andrew Garnet MSW, RSW

Registered Social Worker with 18 years of experience in Scarborough, Ontario. Andrew specializes in trauma therapy, EMDR, men's mental health, and support for first responders and veterans. Full bio →