During EMDR sessions, clients briefly focus on emotionally disturbing material while simultaneously engaging with an external stimulus, such as therapist-directed lateral eye movements. Other stimuli, like hand-tapping or audio cues, may also be used (Shapiro, 1991).
According to Shapiro (1995, 2001), EMDR therapy enhances access to the traumatic memory network, facilitating the formation of new associations between the trauma and adaptive memories or information. This process supports complete information processing, promotes new learning, resolves emotional distress, and fosters cognitive insights.