Can Eye Movements Treat Trauma?

Imagine you are trying to put a traumatic event behind you. Your therapist asks you to recall the memory in detail while rapidly moving your eyes back and forth, as if you are watching a high-speed Ping-Pong match. The sensation is strange, but many therapists and patients swear by the technique, called eye movement desensitization and reprocessing (EMDR). Although skeptics continue to question EMDR's usefulness, recent research supports the idea that the eye movements indeed help to reduce symptoms of post-traumatic stress disorder (PTSD).

Much of the EMDR debate hinges on the issue of whether the eye movements have any benefit or whether other aspects of the therapeutic process account for patients' improvement. The first phase of EMDR resembles the start of most psychotherapeutic relationships: a therapist inquires about the patient's issues, early life events, and desired goals to achieve rapport and a level of comfort. The second phase is preparing the client to mentally revisit the traumatic event, which might involve helping the person learn ways to self-soothe, for example. Finally, the memory processing itself is similar to other exposure-based therapies, minus the eye movements. Some experts argue that these other components of EMDR have been shown to be beneficial as part of other therapy regimens, so the eye movements may not deserve any of the credit. New studies suggest, however, that they do.

In a January 2011 study in the Journal of Anxiety Disorders, for example, some patients with PTSD went through a session of EMDR while others completed all the components of a typical EMDR session but kept their eyes closed rather than moving them. The patients whose session included eye movements reported a more significant reduction in distress than did patients in the control group. Their level of physiological arousal, another common symptom of PTSD, also decreased during the eye movements, as measured by the amount of sweat on their skin.