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Effects of sleep deprivation on the wake state instability

Effects of sleep deprivation on the wake state instability - Effects of sleep deprivation on the wake state instability

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000040118
Enrollment
30
Registered
2020-04-09
Start date
2020-05-11
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy subject

Interventions

A. normal sleep B. sleep deprivation The order of laboratory is (A, B). A. normal sleep B. sleep deprivation The order of laboratory is (B, A).

Sponsors

International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba
Lead Sponsor

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 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

MeasureTime frame
1. Psychomotor vigilance task 2. Time production task

Secondary

MeasureTime frame
1. Wakefulness 2. Subjective sleepiness / fatigue 3. Sleep architecture during sleep and sleep deprivation

Countries

Japan

Contacts

Public ContactTakashi Abe

University of Tsukuba International Institute for Integrative Sleep Medicine (WPI-IIIS)

abe.takashi.gp@u.tsukuba.ac.jp029-859-1858

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026