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Neural correlates of dream lucidity obtained from contrasting lucid versus non-lucid REM sleep: A combined EEG/fMRI case study

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Obrig,  Hellmuth
Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
Berlin Neuroimaging Center, Charité University Medicine Berlin, Germany;
Clinic for Cognitive Neurology, University of Leipzig, Germany;

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Citation

Dresler, M., Wehrle, R., Spoormaker, V. I., Koch, S. P., Holsboer, F., Steiger, A., et al. (2012). Neural correlates of dream lucidity obtained from contrasting lucid versus non-lucid REM sleep: A combined EEG/fMRI case study. Sleep, 35(7), 1017-1020. doi:10.5665/sleep.1974.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000E-B707-E
Abstract
Study Objectives: To investigate the neural correlates of lucid dreaming. Design: Parallel EEG/fMRI recordings of night sleep. Setting: Sleep laboratory and fMRI facilities. Participants: Four experienced lucid dreamers. Interventions: N/A. Measurements and Results: Out of 4 participants, one subject had 2 episodes of verified lucid REM sleep of sufficient length to be analyzed by fMRI. During lucid dreaming the bilateral precuneus, cuneus, parietal lobules, and prefrontal and occipito-temporal cortices activated strongly as compared with non-lucid REM sleep. Conclusions: In line with recent EEG data, lucid dreaming was associated with a reactivation of areas which are normally deactivated during REM sleep. This pattern of activity can explain the recovery of reflective cognitive capabilities that are the hallmark of lucid dreaming.