Eye movement desensitization and reprocessing, or EMDR, is a psychotherapy technique that uses sensory input to help resolve a trauma. In this technique, the client is asked to recall distressing or traumatic events as a therapist directs them in a form of bilateral stimulation such as moving the eyes from left to right or tapping. This enables the client to determine where in their visual field the memory is strongest and to work on releasing it from the point at which they have the most access to the memory and associated emotions.