Lucid dreaming Other
Conditions
Interventions
Subjects:
Group 1: pilot, non-lucid dreamers (n = 10)
Group 2: non-lucid dreamers (n = 10)
Group 3: lucid dreamer participants (with or without narcolepsy) (n = 20)
Intervention:
Group 1: pilot, one
Sponsors
Association for the Development and Organization of Research in Pneumology and Sleep (ADOREPS)
Eligibility
Sex/Gender
All
Age
18 Years to 64 Years
Inclusion criteria
Inclusion criteria: 1. Men or women 2. 18 years of age (no upper age limit) 3. Caisse Primaire d'Assurance Maladie (CPAM) insured 4. Recipients of Aide Médicale d'Etat may be included 5. In good health: free from sleep complaints, physical illness or mental disorder (apart from the possibility of narcolepsy) 6. Frequent lucid dreamers (>1 lucid dream per week, defined by questionnaire) 7. Right-handed people 8. They may be "healthy" or not, suffering from narcolepsy type 1 or 2 according to the international definition
Exclusion criteria
Exclusion criteria: 1. Minors 2. Legally protected persons (under guardianship) 3. Protected persons, as defined in articles L. 1121-5 to L. 1121-8 of the French Public Health Code (particularly pregnant women) 4. Non-French speakers: this is a language-based study in French 5. People regularly taking antidepressant, neuroleptic or benzodiazepine medication (this disrupts REM sleep recording) 6. People taking toxic substances, drugs or psychodysleptics 7. People who cannot tolerate sleeping with a foam plug in their ear 8. People who are left-handed: since right-handed people's language brain areas are highly lateralized to the left, including left-handed people will overly complicate EEG analyses, which are heavily based on right-left comparisons 9. People who are deaf or hard of hearing: they won't be able to do the tests where speech is heard
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Index of middle ear muscle activity (MEMA) during REM sleep, in conjunction with a code of hearing in dreams provided by the lucid dreamers vs a code of silence. Measured via ear pressure sensors, reported on the general polysomnography. | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Index of laryngeal, labial and chin twitches (short twitches <500 ms) during speech in lucid dreaming in REM sleep (coded) vs silence in lucid dreaming in REM sleep (coded). Measured by surface electromyography on the lip muscles and using pre larynx surface EMG sensors. 2. MEMA index during listening to speech in lucid dreaming in REM sleep (coded) vs listening to imagined speech in wakefulness. Measured via ear pressure sensors, reported on the general polysomnography. 3. MEMA index during song listening in REM lucid dream (coded) vs song listening imagined in mind while awake. Measured via ear pressure sensors, reported on the general polysomnography. 4. MEMA index during song listening in REM lucid dream (coded) vs real song listening in wakefulness. Measured via ear pressure sensors, reported on the general polysomnography. 5. MEMA index during dream speech listening (coded) vs waking imagined speech listening. Measured via ear pressure sensors, reported on the general polysomnography. 6. Index of laryngeal, labial and chin twitches (short twitches <500 ms) during speech performed in lucid dream REM sleep (coded) vs speech imagined in wakefulness (coded). Measured by surface electromyography on the lip muscles and using pre larynx surface EMG sensors. 7. Index of laryngeal, labial and chin twitches (short twitches <500 ms) during speech in lucid dreaming REM sleep (coded) vs silent reading in wakefulness (coded). Measured by surface electromyography on the lip muscles and using pre larynx surface EMG sensors. 8. Index of laryngeal, labial and chin twitches (short twitches <500 ms) during speech in lucid dream REM sleep (coded) vs speech aloud in wakefulness (coded). Measured by surface electromyography on the lip muscles and using pre larynx surface EMG sensors. 9. Inspiratory time/total respiratory time of the various respiratory cycles observed during speech performed in lucid dreaming in REM sleep (coded) vs speech performed in waking imagination (coded), | — |
Countries
France
Contacts
Public ContactIsabelle Arnulf
Outcome results
None listed