Consciousness and Cognition 22 (4):1214-1222 (2013)

Abstract
Recent studies suggest that lucid dreaming might be associated with increased brain activity over frontal regions during rapid eye movement sleep. By applying transcranial direct current stimulation , we aimed to manipulate the activation of the dorsolateral prefrontal cortex during REM sleep to increase dream lucidity. Nineteen participants spent three consecutive nights in a sleep laboratory. On the second and third nights they randomly received either 1 mA tDCS for 10 min or sham stimulation during each REM period starting with the second one. According to the participants’ self-ratings, tDCS over the DLPFC during REM sleep increased lucidity in dreams. The effects, however, were not strong and found only in frequent lucid dreamers. While this indicates some preliminary support for the involvement of the DLPFC in lucid dreaming, further research, controlling for indirect effects of stimulation and including other brain regions, is needed
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DOI 10.1016/j.concog.2013.08.005
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Relative Blindsight in Normal Observers and the Neural Correlate of Visual Consciousness.Hakwan C. Lau & Richard E. Passingham - 2006 - Proceedings of the National Academy of Sciences of the United States of America 103 (49):18763-18768.
The Prefrontal Cortex in Sleep.Amir Muzur, Edward F. Pace-Schott & J. Allan Hobson - 2002 - Trends in Cognitive Sciences 6 (11):475-481.

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