Consciousness and Cognition
2026
Guillaume Pepin, Hélène Lœvenbruck, Alan Chauvin et al.
Hallucinations (HAs), the perceptual experiences that occur without external stimuli, are classically associated with psychiatric disorders, but also occur in the general population. Involuntary mental imagery (IMI), the spontaneous occurrence of visual or auditory mental content, shares several features with HAs. The continuum hypothesis suggests that these phenomena exist on a spectrum...
Nature Communications
August 13, 2025
William Wong, Rubén Herzog, Kátia Cristine Andrade et al.
10 citations
Magneto/electroencephalography (M/EEG) studies of dreaming are an essential paradigm in the investigation of neurocognitive processes of human consciousness during sleep, but they are limited by the number of observations that can be collected per study. Dream research also involves substantial methodological and conceptual variability, which poses problems for the integration of results. To...
Journal of Sleep Research
April 1, 2025
Jean-Baptiste Eichenlaub, Romain Bouet, Mathieu Pinelli et al.
3 citations
The present study examined dream habits, and their relation to sleep patterns, in 1151 preteens (597 boys; 554 girls; 11.31 ± 0.62 years old). Dream questionnaires assessed the frequency of dream recall, nightmare, and lucid dream, as well as the intensity of emotions experienced in dreams. Sleep variables included sleep duration and efficiency, but also different measurements of nocturnal...
May 16, 2023
William Wong, Kátia C. Andrade, Thomas Andrillon et al.
21 citations
preprint
Magneto/electroencephalography (M/EEG) studies of dreaming are an essential paradigm in the investigation of neurocognitive processes of human consciousness during sleep, but they are limited by the number of observations that can be collected per study. Dream research also involves substantial methodological and conceptual variability, which poses problems for the integration of results. To...
Psychology of Consciousness
2019
M. Blagrove, Christopher Edwards, E. van Rijn et al.
Throughout history there have been reports and claims that consideration of dreams can produce personal realizations and insight. We assessed Exploration-Insight scores associated with discussing Rapid Eye Movement (REM) and non-REM (NREM) dreams in connection with recent waking life experiences. Thirty-one participants were cued in the sleep laboratory for a daydream report and then awakened...
Journal of Sleep Research
April 22, 2018
Jean-Baptiste Eichenlaub, Elaine Van Rijn, Mairéad Phelan et al.
17 citations
Incorporation of details from waking life events into rapid eye movement (REM) sleep dreams has been found to be highest on the 2 nights after, and then 5-7 nights after, the event. These are termed, respectively, the day-residue and dream-lag effects. This study is the first to categorize types of waking life experiences and compare their incorporation into dreams across multiple successive...
Consciousness and Cognition
February 1, 2018
Elaine Van Rijn, Alexander M Reid, Christopher L Edwards et al.
This study investigates the time course of incorporation of waking life experiences into daydreams. Thirty-one participants kept a diary for 10 days, reporting major daily activities (MDAs), personally significant events (PSEs) and major concerns (MCs). They were then cued for daydream, Rapid Eye Movement (REM) and N2 dream reports in the sleep laboratory. There was a higher incorporation into...
Frontiers in Psychology
2018
Raphael Vallat, Jean-Baptiste Eichenlaub, Alain Nicolas et al.
Recent findings indicate that dream recall frequency (DRF) is associated with neurophysiological traits, and notably the regional cerebral blood flow at rest within the medial prefrontal cortex (MPFC) and the temporo-parietal junction (TPJ). To test whether, such physiological traits are rooted in anatomical specificities, we used voxel-based morphometry to compare the white matter and gray...
Frontiers in Human Neuroscience
2017
Raphael Vallat, Tarek Lajnef, Jean-Baptiste Eichenlaub et al.
High dream recallers (HR) show a larger brain reactivity to auditory stimuli during wakefulness and sleep as compared to low dream recallers (LR) and also more intra-sleep wakefulness (ISW), but no other modification of the sleep macrostructure. To further understand the possible causal link between brain responses, ISW and dream recall, we investigated the sleep microstructure of HR and LR,...
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology
June 1, 2014
Jean-Baptiste Eichenlaub, Alain Nicolas, Jérôme Daltrozzo et al.
Dreaming is still poorly understood. Notably, its cerebral underpinning remains unclear. Neuropsychological studies have shown that lesions in the temporoparietal junction (TPJ) and/or the white matter of the medial prefrontal cortex (MPFC) lead to the global cessation of dream reports, suggesting that these regions of the default mode network have key roles in the dreaming process (forebrain...
Cerebral cortex (New York, N.Y. : 1991)
May 1, 2014
Jean-Baptiste Eichenlaub, Olivier Bertrand, Dominique Morlet et al.
The neurophysiological correlates of dreaming remain unclear. According to the "arousal-retrieval" model, dream encoding depends on intrasleep wakefulness. Consistent with this model, subjects with high and low dream recall frequency (DRF) report differences in intrasleep awakenings. This suggests a possible neurophysiological trait difference between the 2 groups. To test this hypothesis, we...
Frontiers in Psychology
2013
Perrine Ruby, Camille Blochet, Jean-Baptiste Eichenlaub et al.
Studies in cognitive psychology showed that personality (openness to experience, thin boundaries, absorption), creativity, nocturnal awakenings, and attitude toward dreams are significantly related to dream recall frequency (DRF). These results suggest the possibility of neurophysiological trait differences between subjects with high and low DRF. To test this hypothesis we compared sleep...
Arna Ghosh, Arthur Dehgan, Tarek Lajnef et al.
Dreams and our ability to recall them are among the most puzzling questions in sleep research. Specifically, putative differences in brain network dynamics between individuals with high versus low dream recall rates, are still poorly understood. In this study, we addressed this question as a classification problem where we applied deep convolutional networks (CNN) to sleep EEG recordings to...