Effects of artificial light on sleep and cognitive performance
Benefits and Risks of Artificial Light Exposure: Characterisation of Effects on Alertness, Sleep, Cognitive Performance, Mood and Biological Rhythms
This study is testing how different types of artificial light affect sleep and thinking skills in healthy adults aged 18 to 40.
Quick facts
| Phase | Not applicable |
|---|---|
| Study type | Interventional |
| Enrollment | 96 (estimated) |
| Ages | 18 Years to 40 Years |
| Sex | All |
| Sponsor | University Hospital, Strasbourg, France Academic / other |
| Locations | 1 site (Strasbourg) |
| Trial ID | NCT05232383 on ClinicalTrials.gov |
What this trial studies
This project investigates how different types of artificial light exposure influence sleep patterns, alertness, EEG activity, and cognitive performance in healthy adults. Participants aged 18 to 40 will be subjected to various light conditions, including polychromatic and colored lights, while their sleep and wakefulness are monitored. The study aims to establish a clearer understanding of the relationship between light exposure and biological rhythms, potentially leading to improved sleep management strategies.
Who should consider this trial
Good fit: Ideal candidates are healthy males and females aged 18 to 40 with a BMI between 17 and 30 who can maintain a regular sleep/wake rhythm.
Not a fit: Patients with existing somatic, neurological, or psychological conditions, or those taking substances that affect sleep, may not benefit from this study.
Why it matters
Potential benefit: If successful, this study could provide insights into optimizing light exposure to enhance sleep quality and cognitive function.
How similar studies have performed: Other studies have shown promising results regarding the effects of light on sleep and cognitive performance, suggesting this approach has potential.
Eligibility criteria
Show full inclusion / exclusion criteria
Inclusion Criteria:
* Male or female
* Aged 18 to 40 years
* With a hint of Bodymass index (BMI) between 17 and 30 kg.m - 2
* healthy subject determined by a clinical examination, a psychological interview, a blood test, a urine analysis
* Subject with a score\<6 questionnaire PSQI ("Sleep Questionnaire Pittsburgh")
* Subject agreeing to maintain a regular sleep/wake rhythm during the study
* Subject agreeing to refrain from caffeine, nicotine, alcohol, psychotropic drugs, cannabis or other drugs, during the study
* Signed informed consent
* Subjectaffiliated to a social protection scheme
Exclusion Criteria:
* somatic diseases: cardiovascular, respiratory, gastrointestinal, hematopoietic, Visual
* immune system diseases
* kidneys and urinary tract diseases
* endocrine and metabolic diseases
* neurological diseases
* infectious diseases
* thrombocytopenia or other malfunction of blood platelets
* Subject with risk of thrombosis, including subject with a history of phlebitis, smoker under oral contraceptive...
* Subject with an addiction to caffeine, nicotine, alcohol, psychotropic drugs, cannabis, or any other drug
* Subject treatment contraindicated or inadvisable in combination with heparin
* blood donation in the previous 3 months before the inclusion
* Participation in other clinical trials
* Work by shifts in the year preceding the inclusion
* Trans-meridian travel (\> 2 time zones) in the month previous the inclusion
* Impossibility to give enlightened information (subject in an emergency situation, understanding difficulties,...)
* Subject under safeguard of justice
* Subject under tutorship or curatorship
* Pregnancy (women of childbearing age)
* Breastfeeding
* Diet incompatible with the study's snack choices
Where this trial is running
Strasbourg
- Hôpitaux Universitaires de Strasbourg — Strasbourg, France (Recruiting)
Study contacts
- Principal investigator: Patrice BOURGIN, MD — Hôpitaux Universitaires de Strasbourg
- Study coordinator: Patrice BOURGIN, MD
- Email: pbourgin@unistra.fr
- Phone: 03 88 11 64 30
How to participate
- Review the eligibility criteria above with your treating physician.
- Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
- Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.