Lucid Dreaming in Narcolepsy

Dodet, Pauline; Chávez, Mario; Leu‐Semenescu, Smaranda; Arnulf, Isabelle

doi:10.5665/sleep.4516

Cited by 99 publications

(91 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The whole picture suggests a strong relationship between fast‐frequency EEG activity and effectiveness of memory encoding of dream experience as prerequisite for its successful recall after awakening and prompts to consider in future studies also the relationship of dream recall with frequencies faster than beta. This relationship appears plausible because (1) the power in the higher gamma range is associated with dreaming both during REM and NREM sleep; (2) changes in gamma coherence are linked to lucid dreams during REM sleep in NT1 patients, and (3) transcranial direct current stimulation (tDCS) in the gamma band during REM sleep can induce lucid dreaming in healthy subjects …”

Section: Discussionmentioning

confidence: 99%

Cortical activation during sleep predicts dream experience in narcolepsy

D’Atri

Scarpelli

Schiappa

et al. 2019

Ann Clin Transl Neurol

View full text Add to dashboard Cite

Objective Narcolepsy type 1 widely affects the architecture of sleep with frequent fast transition to REM sleep at both nighttime and daytime sleep onset. The occurrence of repeated sleep onset REM periods over the Multiple Sleep Latency Test offers a unique opportunity to identify EEG patterns predictive of successful dream recall after short periods composed of only REM or NREM sleep. It also permits to disentangle state‐ from trait‐like differences in dream recall, by using a within‐subjects design. Methods A consecutive series of 115 first‐diagnosed drug‐free adult narcolepsy‐type 1 patients underwent Multiple Sleep Latency Tests and were asked after each nap opportunity if they had or had not a dream experience. Scalp EEG power and a specific index of cortical activation (delta/beta power ratio), obtained from naps of 43 patients with both presence and absence of dream recall in the same sleep stage, were compared separately for REM and NREM sleep. Results Successful dream recall was associated with an increased EEG desynchronization in both REM and NREM over partially overlapping cortical areas. Compared to unsuccessful recall, it showed (1) lower delta power over centro‐parietal areas during both stages, (2) higher beta power in the same cortical areas during NREM, and (3) lower values in the delta/beta ratio during NREM in most scalp locations. Interpretation A more activated electrophysiological milieu in both REM and NREM sleep promotes dream recall, strengthening the notion that the parietal areas are crucial not only in generating dream experience, as shown in brain‐damaged patients, but also in the memory processing leading to recall.

show abstract

Section: Discussionmentioning

confidence: 99%

Cortical activation during sleep predicts dream experience in narcolepsy

D’Atri

Scarpelli

Schiappa

et al. 2019

Ann Clin Transl Neurol

View full text Add to dashboard Cite

show abstract

“…In the case of sleep-related conditions, researchers have linked narcolepsy with changes in dream mentation. Particularly, higher dream recall frequency and lucid dreaming (Dodet et al, 2015;Rak et al, 2015). Recent work has also reported an association between narcolepsy and creativity (Lacaux et al, 2019).…”

Section: Limitations and Suggestions For Future Researchmentioning

confidence: 96%

Lucid Dreaming, Nightmares, and Sleep Paralysis: Associations With Reality Testing Deficits and Paranormal Experience/Belief

2020

View full text Add to dashboard Cite

Focusing on lucid dreaming, this paper examined relationships between dissociated experiences related to rapid eye movement (REM) sleep (lucid dreaming, nightmares, and sleep paralysis), reality testing, and paranormal experiences/beliefs. The study comprised a UK-based online sample of 455 respondents (110 males, 345 females, Mean age = 34.46 years, SD = 15.70), who had all previously experienced lucid dreaming. Respondents completed established self-report measures assessing control within lucid dreaming, experience and frequency of nightmares, incidence of sleep paralysis, proneness to reality testing deficits (Inventory of Personality Organization subscale, IPO-RT), subjective experience of receptive psi and life after death (paranormal experience), and paranormal belief. Analysis comprised tests of correlational and predictive relationships between sleep-related outcomes, IPO-RT scores, and paranormal measures. Significant positive correlations between sleep and paranormal measures were weak. Paranormal measures related differentially to sleep indices. Paranormal experience correlated with lucid dreaming, nightmares, and sleep paralysis, whereas paranormal belief related only to nightmares and sleep paralysis. IPO-RT correlated positively with all paranormal and sleep-related measures. Within the IPO-RT, the Auditory and Visual Hallucinations sub-factor demonstrated the strongest positive associations with sleep measures. Structural equation modeling indicated that Auditory and Visual Hallucinations significantly positively predicted dissociated experiences related to REM sleep, while paranormal experience did not. However, paranormal experience was a significant predictor when analysis controlled for Auditory and Visual Hallucinations. The moderate positive association between these variables explained this effect. Findings indicated that self-generated, productive cognitiveprocesses (as encompassed by Auditory and Visual Hallucinations) played a significant role in conscious control and awareness of lucid dreaming, and related dissociative sleep states (sleep paralysis and nightmares).

show abstract

“…Of note, up to 78 % of patients with Narcolepsy are lucid dreamers. 36 Intriguingly, it has been reported that healthy subjects during REM sleep may generate some "conscious" experience (reflexive consciousness), showing that the brain still keeps the capacity to detect and categorize internal states of mind. 36 Moreover, recently Mazza et al 37 reported the observation of a patient who, while being recorded with intra-cerebral electrodes for refractory epilepsy, was able to reproduce during REM sleep a motor behavior performed during wakefulness with EEG activity comparable to that of wakefulness over the prefrontal and parietal areas and over the anterior cingulate cortex.…”

Section: Within-mind Dissociation: Lucid Dreamingmentioning

confidence: 99%