Dissociation, Resting EEG, and Subjective Sleep Experiences in Undergraduates

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In this study, we explored whether individual differences in dissociation are related to certain resting electroencephalographic (EEG) parameters. Baseline EEG with eyes open and closed was recorded in an undergraduate sample (N = 67). Cortical power in the α range was inversely related to dissociative symptoms as measured by the Dissociative Experiences Scale, while both δ and θ power where positively related to dissociation. However, sleep experiences, as indexed with the Iowa Sleep Experiences Survey, were unrelated to resting EEG characteristics. We propose that suppression in the α band and raised levels of θ activity, which are typical for high dissociators, might help to explain why dissociative symptoms are accompanied by attentional and memory deficits.

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