Eye Movement Desensitization and Reprocessing, is a late-stage, trauma resolution method. EMDR assists in processing traumatic memories and information which permit for a more comfortable perspective of the trauma. According to Francine Shipiro, EMDR is a complex, highly specialized therapy used to overcome the effects of traumatic or upsetting experiences.
Because impressions of trauma get stored in the nervous system through defense mechanisms it is important to adjust the neural network so that it will function in a healthier manner enabling us to not remain stuck re-experiencing the negative memories.
According to Bessel van der Kolk and others, EMDR works because the alternating bilateral stimulation distracts the client from the traumatic memories and allows the brain to be changed. If you are stuck in old memories, you can't have new behavior. Only changing the outcome of the past can result in new behavior in the future.