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Sleep. 2012 Jul 1;35(7):1017-20. doi: 10.5665/sleep.1974.

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

Author information

1
Max Planck Institute of Psychiatry, Munich, Germany.

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.

KEYWORDS:

REM; fMRI; lucid dreaming

PMID:
22754049
PMCID:
PMC3369221
DOI:
10.5665/sleep.1974
[Indexed for MEDLINE]
Free PMC Article

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