EMDR is one of the most effective treatments for trauma — but it's also one of the least understood. Here's what you can actually expect when you walk into a session.
If you've been told EMDR might help you, or you're simply curious about what it involves, you've probably encountered descriptions that sound either overly technical or a little strange. Eye movements? Tapping? What does any of that have to do with trauma?
The short answer is that EMDR (Eye Movement Desensitisation and Reprocessing) works by helping the brain finish processing experiences that got "stuck" — usually because they were too overwhelming at the time to be processed normally. Here's what that actually looks like in practice.
The first few sessions aren't about the trauma at all
Before any trauma processing begins, your therapist spends time getting to know you — your history, your support systems, and what resources help you feel safe and regulated. This phase is called preparation, and it can take anywhere from one to several sessions. There's no rushing it. The brain needs to feel safe before it can process anything difficult.
Bilateral stimulation — what it is and why it works
The "eye movements" in EMDR refer to bilateral stimulation — alternating left-right sensory input, which can be delivered through eye movements, tapping, or auditory tones. During online sessions, therapists often use screen-based tools. Research suggests this bilateral input engages a similar process to what happens in REM sleep, when the brain naturally consolidates and processes memories.
What you'll actually be doing
During a processing session, your therapist will ask you to briefly bring to mind the memory or experience you're working on — along with any associated thoughts, feelings, or body sensations. Then, while you hold this lightly in mind, the bilateral stimulation begins. You don't need to talk through the memory in detail. Mostly, you just notice what comes up — and let it.
Many people find that memories shift, change, or become less distressing quite naturally during this process. Some notice new images, thoughts, or feelings surfacing. Others feel physical sensations move through them. The therapist checks in with you regularly and guides the pacing throughout.
It doesn't feel like reliving trauma
One of the most common fears people have is that EMDR means going back into the worst moments of their lives in full detail. In practice, this isn't how it works. EMDR is designed to process memory, not relive it. Most people describe the experience as noticing something from a distance, like watching a film rather than being inside it. Your therapist will always be there to slow things down or stop altogether if needed.
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