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Effects of sleep deprivation on the cognitive function

Effects of sleep deprivation on the cognitive function - Effects of sleep deprivation on the cognitive function

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000056188
Enrollment
12
Registered
2025-12-31
Start date
2024-12-15
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

None (Healthy Adults)

Interventions

1 normal sleep 2 sleep deprivation The order of laboratory is (1,2).

Sponsors

Ritsumeikan University
Lead Sponsor
Shiga University of Medical Science
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Healthy males and females aged 20 to 40 2. Those whose Pittsburgh Sleep Quality Index score of less than 6 3. Native Japanese speakers

Exclusion criteria

Exclusion criteria: 1. Individuals with serious illnesses under treatment or a history of mental illness. 2. Individuals judged to have sleep problems by the principal investigator or researchers (doctors) at Shiga University of Medical Science. 3. Individuals taking medication or supplements related to sleep. 4. Individuals unable to stay for 3 days and 2 nights. 5. Individuals planning to drive (including bicycles and scooters) or engage in other hazardous activities on the day of the test. 6. Individuals consuming excessive alcohol (more than 20g of pure alcohol per day on average). 7. Individuals with a smoking habit (those who have smoked daily or occasionally in the past three months). 8. Individuals unable to get at least 6 hours of sleep per day from one week before the test until the test day, due to night shifts, etc. 9. Individuals with sleep disorders (those whose Pittsburgh Sleep Quality Index score of 6 or higher).

Design outcomes

Primary

MeasureTime frame
Subjective psychological test

Secondary

MeasureTime frame
Subjective sleepiness

Countries

Japan

Contacts

Public Contactshima okada

Ritsumeikan University Faculty of Science and Engineering

s-okada@fc.ritsumei.ac.jp0775614939

Outcome results

None listed

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