The relationship between the dreamed body and the physical body remains an open question in sleep and dream research. This study examined whether somatosensory stimulation applied during REM sleep modulates the corresponding dream content under controlled conditions. Using a within-subject design, we compared three stimulation modalities-electrical muscular, galvanic vestibular, and haptic...
Abstract During wakefulness, we are used to perceive the environment through our senses, act on it and take these inputs to update our experiences and build the perceptions. When the inputs are not longer accurate or structured, people would sometimes have hallucinatory experiences. Whether such experiences are associated with distinct patterns of thought, and how they relate to large-scale...
Abstract Study Objectives Sensory stimulation during rapid eye movement (REM) sleep has been proposed as a method to induce lucidity, yet most approaches rely on distal sensory modalities such as light and sound. We explored whether bodily stimulation targeting the muscle and vestibular systems differentially influences dream incorporation and lucid awareness during REM sleep. Methods 28...
Abstract During lucid dreaming, the dreamer is aware that they are dreaming. In past years, numerous studies have explored the characteristics of lucid dreams, which link lucid dreams to vivid visual perception, positive emotions, and wake-like metacognition and executive functions. To determine brain network activity associated with the conscious experience during lucid dreaming, we analyzed...
Abstract Lucid dream (LD) induction using external sensory stimulation has most commonly relied on distal cues such as lights or auditory signals, with mixed success rates. In this study, we investigated whether more direct bodily stimulation targeting the muscle and vestibular systems could influence LD induction. We compared electrical muscle stimulation (EMS) and galvanic vestibular...
Abstract Lucid dreaming (LD), during which the dreamer is aware that they are dreaming, is frequently induced in laboratory settings by delivering sensory cues during rapid eye movement (REM) sleep. These cues should be incorporated into ongoing dreams and can trigger reflective awareness. This approach relies on the continuity between waking experiences and dream content. In sleep...
Lucid dreaming refers to a dream state in which the dreamers are aware that they are dreaming and may be able to intentionally influence the dream content. Previous studies have shown that lucid dreaming provides a useful model for investigating cognitive processes during dreaming and may also have potential therapeutic applications. However, reliable methods for inducing lucid dreams are still...
STUDY OBJECTIVES: Sensory stimulation during rapid eye movement (REM) sleep has been proposed as a method to induce lucidity, yet most approaches rely on distal sensory modalities such as light and sound. We explored whether bodily stimulation targeting the muscle and vestibular systems differentially influences dream incorporation and lucid awareness during REM sleep. METHODS: 28 participants...
Lucid dreaming (LD) is a state of conscious awareness of the ongoing oneiric state, predominantly linked to REM sleep. Progress in understanding its neurobiological basis has been hindered by small sample sizes, diverse EEG setups, and artifacts like saccadic eye movements. To address these challenges in characterizing the electrophysiological correlates of LD, we introduced an adaptive...
Introduction Lucid dreaming opens the possibility to rehearse sport skills within a dream while sleeping (Peters et al. 2023; Stumbrys et al. 2016). But so far, no induction techniques have been developed to induce reliable lucid dreams. One potential technique is to apply external stimulation while a person is sleeping in order to send a hint into the dream which might enhance lucidity in the...