The effect of different light intensity on the alertness of healthy people

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2100044521

Enrollment

Unknown

Registered

2021-03-23

Start date

2021-03-19

Completion date

Unknown

Last updated

2021-09-20

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

Conditions

None listed

Interventions

Group 1:Mixed white illumination 2500lx

Group 2:Mixed white illumination 5000lx

Group 3:Mixed white illumination 7500lx

Group 4:Mixed white illumination 10000lx

Eligibility

Sex/Gender

All

Age

18 Years to 45 Years

Inclusion criteria

Inclusion criteria: 1) Aged 18-45 years; 2) No main complaint of sleep disorders; 3) Meet the standards of normal sleepers.

Exclusion criteria

Exclusion criteria: 1) According to the the International Classification of Sleep Disorders (ICSD-3) diagnostic criteria, patients with sleep-wake disorders such as insomnia, sleep-related breathing disorders, parasomnias, sleep-related dyskinesias, central narcolepsy diseases, etc.; 2) Patients with mental disorders that meet the diagnostic criteria of schizophrenia, bipolar disorder, depression, anxiety, mental retardation, and substance dependence in the Diagnostic and Statistical Manual of Mental Disorders Fourth Edition(DSM-5); 3) Work or live across 3 or more time zones in the past month; 4) Patients with unstable and severe physical diseases; 5) There are obvious visual abnormalities, such as cataracts, narrow-angle glaucoma, etc.

Design outcomes

Primary

Measure	Time frame
score of KSS;reaction time of PVT;concentration of salivary cortisol;Sleep diary related index;	—

Countries

China

Contacts

Public ContactSun Hongqiang

Peking University Sixth Hospital

sunhq@bjmu.edu.cn+86 13911043951

Outcome results