Changing process of memory by EMDR(eye movement desensitization and reprocessing)

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In order to investigate the changing pattern of brain functional location and the autonomic nervous system during EMDR, [oxy Hb] in brain blood flow was measured by 24 channel probes of Near Infrared Spectroscopy(NIRS) in four subjects. Skin conductance, skin temperature, plethysmogram, and respiration volume were also measured. By comparing between pre and post EMDR, clinical indices had significantly decreased. [oxy Hb] of orbitofrontal cortex(OFC) showed rapid increase with recalling traumatic memory but soon began to decrease.In order to investigate the effect of horizontal eye movement on safe place imagery, experiments using university students were conducted. The sense of safety or calmness were decreased with horizontal eye movement and the depth of experiencing imagery was increased with eye fixation.