Healthy subject
Conditions
Interventions
A. condition 1 (sham) The experiment sequence (A, B, C, D) is ordered by the Latin square design.
B. condition 2 (rocking stimulation) The experiment sequence (A, B, C, D) is ordered by the Latin s
Sponsors
International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Having no difficulty in filling out Japanese explanatory documents, consent forms, and survey forms 2. No claustrophobia and being able to stay in the examination room on the 5th floor of the Innovation Medical Research Institute, University of Tsukuba, or the mobile sleep lab 3. Having no hearing problems in daily life 4. Currently having no symptoms or no history of sleep disorder
Exclusion criteria
Exclusion criteria: 1. Irregular lifestyle (A guideline for regular life: 21: 00 ~ 1: 00 going to bed, getting up from 6: 00 ~ 9: 00, sleeping 7 ~ 9 hours) 2. BMI less than 18.5 or over 25 3. Worked night shift (after 22:00) within the last three months 4. Having traveled to a country with a time difference of 3 hours or more within the last three months 5. Drink alcohol regularly (at least 40 g of pure alcohol [approximate: 2 cans of beer] twice a week or more) 6. Having a smoking habit 7. Daily caffeine intake of 300 mg or more (approximate: 5 cups of 150 mL coffee) 8. Morningness-Eveningness Questionnaire (MEQ) score 30 points or less or 70 points or above 9. Pittsburgh Sleep Questionnaire Index (PSQI) scores more than 5.5 10. Motion Sickness Susceptibility Questionnaire Short-Form (MSSQ-Short) score of 19 or higher 11. Claustrophobia 12. Pregnant or its possibility 13. Lactation 14. Those who have a disease that may change suddenly or have a history 15. Those who have been treated for mental illness or sleep disorders, those who have symptoms that are currently being treated 16. Subject judged by the investigator to be inappropriate
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1. Total sleep time, sleep efficiency, sleep latency, the amount and power of deep (slow-wave) sleep, and the amount and power of sleep spindles | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Cognitive performance 2. Subjective sleepiness/fatigue | — |
Countries
Japan
Contacts
Public ContactTakashi Abe
University of Tsukuba International Institute for Integrative Sleep Medicine (WPI-IIIS)
Outcome results
None listed