What Happens in the Brain During Bilateral Stimulation?
Bilateral stimulation is often explained with phrases like “integrating the hemispheres,” “calming the amygdala,” or “rewiring the brain.” The actual science is more complicated. Eye movements appear to affect attention and working memory while emotional memories are active, and successful trauma therapy is associated with changes across larger brain networks involved in memory, emotion, threat detection, and regulation.
Why Do Eye Movements Help With Distressing Memories?
Eye movements are used in both EMDR and Accelerated Resolution Therapy, or ART. Research suggests that recalling a distressing memory while simultaneously performing a demanding eye-movement task can make the memory less vivid and, to a lesser degree, less emotionally intense. The exact mechanism is still being studied.
How Does Bilateral Stimulation Work in EMDR?
How does bilateral stimulation work in EMDR? Research suggests eye movements may tax working memory while a distressing memory is recalled, reducing its vividness and emotional intensity. Learn what scientists know—and what remains uncertain.