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KMID : 0981220150150010173
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Congnitive Behavior Therapy in Korea
2015 Volume.15 No. 1 p.173 ~ p.194
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The effects of dissociation and hyperarousal on intrusions of Similar Trauma Scenes
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Choi Yun-Kyeung
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Abstract
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The purpose of the present study was to examine the effects of dissociation and hyperarousal on intrusions of similar trauma scenes. Participants were college students without serious trauma experiences. They were randomly assigned to experimental group(n=34) manipulated with data-driven processing and control group(n=37) manipulated with conceptual processing. All participants were asked to complete a series of self-report questionnaires at pre- and post-treatment, and a daily intrusion diary for one week after viewing the trauma film. Their heart rate variability(HRV) were recorded during baseline, trauma film exposure, and recovery period(for 5 minutes on each period). The results showed that participants in the experimental group had reported intrusions of the film more frequently than did controls both immediately and for a week after exposure to the trauma film. The hierarchical regression results showed that peritraumatic dissociation, hyperarousal and RMSSD on baseline were positively associated with intrusions during 1 week after watching trauma film, but psychological and somatoform dissociation, heart rate, LF-HRV and HF-HRV were not significant. Finally, limitations of this study and suggestions for future study were discussed.
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KEYWORD
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trauma, dissociation, hyperarousal, intrusion, heart rate variability(HRV)
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