Healthy subject
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Those who do not have difficulty in filling out Japanese explanatory documents, consent forms, and survey forms 2. Those who can stay in the examination room on the 5th floor of the Innovation Medical Research Institute, University of Tsukuba 3. Those who have never been treated for mental illness or sleep disorder 4. Those who currently have no symptoms to be treated 5. Those who can visit the lab or return home by walking, public transportation, or pick-up by others Driving by themselves (including bicycles) after the experiment is not allowed.
Exclusion criteria
Exclusion criteria: . Those who are living irregular lives (Regular life: 21: 00 ~ 1: 00 going to bed, getting up from 6: 00 ~ 9: 00, sleeping 7 ~ 9 hours) 2. Thin (below BMI18.5) or obese (over BMI25) physique 3. Those who worked night shift (after 22:00) within the last 3 months 4. Those who have traveled to a country with a time difference of 3 hours or more within the last 3 months 5. Those who drink alcohol regularly (at least 40 g of pure alcohol [approximate: 2 cans of beer] twice a week or more) 6. Those who have a smoking habit 7. Those who have a daily caffeine intake of 300 mg or more (approximate: 5 cups of 150 mL coffee) 8. Those who may fall under 1. -7. above during the experiment period 9. Extreme eveningness type or extreme morningness type (Morningness-Eveningness Questionnaire score 30 points or less or 70 points or above) 10. Those whose Pittsburgh Sleep Questionnaire scores more than 5.5 11. Those whose Epworth sleepiness scale score of 11 or higher 12. Those who have a disease that may change suddenly or have a history 13. Those who have claustrophobic 14. Those who are pregnant or may be pregnant 15. Those who are under lactation 16. Those who are judged by the investigator to be inappropriate
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1. Psychomotor vigilance task 2. Time production task | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Wakefulness 2. Subjective sleepiness / fatigue 3. Sleep architecture during sleep and sleep deprivation | — |
Countries
Japan
Contacts
University of Tsukuba International Institute for Integrative Sleep Medicine (WPI-IIIS)