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KMID : 0981220140140020165
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Congnitive Behavior Therapy in Korea
2014 Volume.14 No. 2 p.165 ~ p.190
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The effect of bilateral eye movements, imaginal exposure, and imagery rescripting on intrusive memory : An experimental study
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Choi Yun-Kyeung
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Abstract
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Eye movement desensitization and reprocessing(EMDR) and prolonged exposure therapy(PE) have demonstrated efficacy in a number of clinical trials for posttraumatic stress disorder(PTSD). In EMDR, it is the bilateral nature of the stimulation, particularly eye movements, that is thought to facilitate processing of traumatic memories. Imaginal exposure is a core technique usually employed in PE. In recent years, there has been a growing interest in imagery rescripting, which has been found to be effective for minimizing negative symptoms associated with traumatic events. This study aimed to evaluate and compare the relative efficacy of different treatment conditions for PTSD using the trauma film paradigm. The four conditions of the study were bilateral eye movement(n=30), imaginal exposure(n=34), imagery rescripting(n=27), and abdominal breathing(control; n=31). The results showed that the bilateral eye movement and the imagery rescripting groups had a significant reduction in subjective units of distress scores(SUDs) and heart rate as compared to the imaginal exposure and the control groups. The imaginal exposure group developed more intrusive memory relative to the other groups. These results suggest that bilateral eye movement and imagery rescripting might be the non-distressing strategies to decrease PTSD-like symptoms. The efficacy of repeated imaginal exposure needs to be further evaluated.
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KEYWORD
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trauma, intrusive memory, bilateral eye movements, imaginal exposure, imagery rescripting
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