Types of bilateral stimulation for EMDR therapy Eye movements: light bar or wand, hand-held or self-tapping touch device, auditory sound through headphones. Eye Movement Desensitization and Reprocessing (EMDR) is a fairly new and non-traditional type of psychotherapy. Its popularity is growing, especially for treating post-traumatic stress disorder (PTSD). PTSD often occurs after experiences such as military combat, physical assault, rape, or car accidents.
To put it another way, the bilateral stimulation (BLS) used in EMDR gives you something to focus on when you access painful memories and unwanted thoughts.