Healthy subjects
Conditions
Interventions
Phenylethyl alcohol Presents an odor during a task before sleep during REM sleep.
Phenylethyl alcohol Presents distilled water during a task before sleep and an odor (Phenylethyl alcohol) duri
Sponsors
International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba
Eligibility
Sex/Gender
All
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 do not have sleep disorders, olfactory and taste disorders, and their history
Exclusion criteria
Exclusion criteria: 1. 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 least40 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 150mL 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 |
|---|---|
| Iowa Gambling Task(IGT) | — |
Secondary
| Measure | Time frame |
|---|---|
| Psychomotor Vigilance Task Cambridge Gambling Task Wakefulness Subjective sleepiness/fatigue Cognitive understanding of IGT | — |
Countries
Japan
Contacts
Public ContactTakashi Abe
University of Tsukuba International Institute for Integrative Sleep Medicine (WPI-IIIS)
Outcome results
None listed