Also known as: Eye Movement Desensitization and Reprocessing
A trauma-processing protocol combining bilateral stimulation (eye movements or alternating taps) with structured trauma recall. Recommended as first-line PTSD treatment by the VA, WHO, and APA, with large effect sizes for single-incident trauma.
EMDR was developed by Francine Shapiro in 1989 and has the strongest evidence base of any body-first trauma approach. The Department of Veterans Affairs, the World Health Organisation, and the American Psychological Association all list it as first-line treatment for PTSD.
The protocol involves identifying a specific traumatic memory, holding it in mind while engaging in bilateral stimulation (eye movements following the therapist's hand, or alternating left-right taps), and noticing what shifts. Across 60 to 90 minute sessions, the memory typically loses its disturbing intensity, and adaptive cognitions emerge. The patient does not need to verbally narrate the trauma in detail; holding the memory image while the bilateral stimulation does the processing work is the protocol's core mechanism.
Effect sizes for single-incident PTSD are large. 8 to 12 sessions typically reduces PTSD diagnoses to subclinical levels. For complex PTSD with multiple traumas across childhood, the course is longer (6 to 18 months) and includes preparation work for autonomic regulation before processing begins.
EMDR has also been applied to migraines (Marcus 2015 Toronto pilot showed 35% headache frequency reduction in stress-trigger patients) and to grief processing. The grief protocol applies the same bilateral stimulation framework to grief-specific memories and triggers, with strongest evidence for grief involving traumatic memory components (sudden death, witnessed death, violence).
Limitations: severe dissociation requires extensive preparation before EMDR can be safely used. Comorbid substance use needs to be addressed first. Pre-verbal trauma (before age 4 to 5) often responds better to somatic experiencing than to EMDR because the verbal-memory access EMDR uses is not available for pre-verbal material.
Bessel van der Kolk's research showed that trauma is stored pre-verbally and often cannot be reached through narrative alone. EMDR is VA first-line. Somatic experiencing, trauma-informed yoga, neurofeedback, and EFT offer body-first paths for trauma that talk cannot reach.
Stress is a documented migraine trigger. PTSD nearly doubles migraine prevalence. Pilot studies of EMDR and EFT for migraine show reductions in frequency, duration, and painkiller use. The mind-body link is real and clinically actionable.
Acute uncomplicated grief responds well to talk therapy and time. Complicated grief that gets stuck in the body often needs body-based work. EMDR for grief, somatic experiencing, and consciousness coaching offer paths through grief that words alone cannot reach.
Glossary31 terms covering modalities, mechanisms, and conditions