ELECTROPHYSIOLOGICAL CORRELATES OF CONSCIOUS EXPERIENCES DURING SLEEP: LUCID DREAMS, SLEEP PARALYSIS, OUT-OF-BODY EXPERIENCES, AND FALSE AWAKENINGS

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Detalles Bibliográficos
Publicado en:	bioRxiv (Feb 12, 2025)
Autor principal:	Herrero, Nerea
Otros Autores:	Corfdir, Yohann, Aylin Agatha Vazquez Chenlo, Capurro, Lucila, Forcato, Cecilia
Publicado:	Cold Spring Harbor Laboratory Press
Materias:	REM sleep Paralysis Principal components analysis Multivariate analysis Sleep and wakefulness
Acceso en línea:	Citation/Abstract Full text outside of ProQuest
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Descripción
Resumen:	Consciousness does not always fade during sleep. Instead, it can re-emerge, giving rise to lucid dreams (LDs), sleep paralysis (SP), out-of-body experiences (OBEs), and false awakenings (FAs). While some of these states have been studied phenomenologically, their neurophysiological underpinnings remain unclear. Here, we investigate their electrophysiological correlates and distinguish them from standard sleep stages. We conducted overnight polysomnography in frequent experiencers, capturing 10 episodes (3 LDs, 2 SP, 2 OBEs, 3 FAs). Eye movement markers identified periods of lucidity. Relative spectral power was analyzed using principal component analysis (PCA) and permutation-based multivariate analysis of variance (PERMANOVA). Our results indicate that these conscious sleep states are distinct from wakefulness, yet share features with both stage 1 (S1) and rapid eye movement (REM) sleep. Notably, we provide the first documented eye movement markers during FAs and OBEs.Competing Interest StatementThe authors have declared no competing interest.
ISSN:	2692-8205
DOI:	10.1101/2025.02.10.637510
Fuente:	Biological Science Database