Methodological and conceptual issues and tests - EMDR (Eye movement desensitisation and reprocessing) and REM sleep

Description

Desensitisation and Reprocessing) and REM sleep. [Background] Eye movement desensitization and reprocessing (EMDR) is a new innovative treatment with a high success rate for psychological disturbances rooted in traumatic memory. However, the neurophysiological mechanisms of EMDR have not yet been elucidated. Why is saccadic eye movement effective for the reprocessing of previously established conditioned reflex? [Aims] The present research analysed (i)the topographical changes of EEG (and ERP) and REM sleep after EMDR treatment, and (ii)the subjective units of emotional distress (SUDs) and VOC. [Methods] Subjects (13 males and 20 females) were assigned to three groups according to varied conditions (control, provocational, and EMDR), and engaged in sets of horizontal saccadic-eye movements lasting approximately 30 seconds per set. Topographical changes of EEG and ERP activities were recorded from 14 placements over frontal, central, parietal, temporal and occipital scalp locations in the international 10-20 system with linked mastoides (A1-A2). Electrodes were also placed on the lateral canthus and above the supercillium of the left eye in order to measure the electrooculographic and electromyographic responses. [Results and Conclusions] The statistical significance of topographical EEG differences and REM densities during the pre-0post EMDR treatment situations, were evaluated using an ANONA and Mann-Whitney U test. The neurophysiological and psychological data indicate that the density of eye movement during REM sleep increased after provocation and EMDR, and the left frontal activities might indicate a treatment efficacy. It supports the hypothesis is that REM sleep is intimately involved with the mechanisms of emotional and memory reprocessing.

Format

Conference

Language

English

Author(s)

Sugawara Masakazu
K. Suzuki

Original Work Citation

Sugawara Masakazu & Suzuki K (2004, July). Methodological and conceptual issues and tests - EMDR (Eye movement desensitisation and reprocessing) and REM sleep. Poster presented at the Annual Meeting of the Australian Society for the Study of Brain Impairment (ASSBI) and the International Neuropsychological Society (INS), Brisbane, Australia

Collection

Tags

Citation

“Methodological and conceptual issues and tests - EMDR (Eye movement desensitisation and reprocessing) and REM sleep,” Francine Shapiro Library, accessed July 29, 2021, https://emdria.omeka.net/items/show/20760.

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