EMDR was discovered by Francine Shapiro, Ph.D. in 1987. She was walking through a park noticing the trees on either side of the path she was on. She realized that the eye movements seemed to decrease the negative emotion associated with her own distressing memories she was thinking about. She began to experiment with the eye movements to see if they did, in fact, decrease negative feelings. She found that others had the same response but later added other components to the treatment to make it a more comprehensive treatment. She also found that other forms of bilateral stimulation can produce the same beneficial results.