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The purpose of this project is to study the influence of light on sleep, wakefulness, EEG activity and cognitive performances. The study aim also to evaluate techniques for registration and analysis of the EEG over periods of time.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| white polychromatic light A | Experimental |
| |
| white polychromatic light B | Experimental |
| |
| white polychromatic light C | Experimental |
| |
| white polychromatic light D | Experimental |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Application of white polychromatic light for 2h30 at different times of day | Other |
|
| Measure | Description | Time Frame |
|---|---|---|
| Analysis of EEG activity | sleep fragmentation | up to 56 hours |
| Cognitive performances assessed using Psychomotor vigilance task (PVT) | Psychomotor vigilance task (PVT) | up to 56 hours |
| Cognitive performances assessed using Sustained Attention to Response Task (SART) | Sustained Attention to Response Task (SART) | up to 56 hours |
| Cognitive performances assessed using Digit Symbol Substitution Test (DSST) | Digit Symbol Substitution Test (DSST) | up to 56 hours |
| Cognitive performances assessed using N-back tasks | N-back tasks | up to 56 hours |
| Cognitive performances assessed using Paced Visual Serial Addition Task (PVSAT) | Paced Visual Serial Addition Task (PVSAT) | up to 56 hours |
| Cognitive performances assessed using Visual analogue scales (VAS) for motivation | Visual analogue scales (VAS) for motivation | up to 56 hours |
| Cognitive performances assessed using Positive and Negative Affect Scale (PANAS) | Positive and Negative Affect Scale (PANAS) |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hôpitaux Universitaires de Strasbourg | Strasbourg | 67091 | France |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 36519316 | Result | Glacet R, Reynaud E, Robin-Choteau L, Reix N, Hugueny L, Ruppert E, Geoffroy PA, Kilic-Huck U, Comtet H, Bourgin P. A comparison of four methods to estimate dim light melatonin onset: a repeatability and agreement study. Chronobiol Int. 2023 Feb;40(2):123-131. doi: 10.1080/07420528.2022.2150554. Epub 2022 Dec 15. | |
| 41803808 | Derived |
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| up to 56 hours |
| Cognitive performances assessed using Karolinska Sleepiness Scale (KSS) | Karolinska Sleepiness Scale (KSS) | up to 56 hours |
| Cognitive performances assessed using Visual Comfort Scale (VCS) | Visual Comfort Scale (VCS) | up to 56 hours |
| Cognitive performances assessed using Racing and Crowded Thoughts Questionnaire (RCTQ) | Racing and Crowded Thoughts Questionnaire (RCTQ) | up to 56 hours |
| Cognitive performances assessed using Mental Effort Rating Scale (RSME) | Mental Effort Rating Scale (RSME) | up to 56 hours |
| Cognitive performances assessed using Karolinska Drowsiness Test (KDT) | Karolinska Drowsiness Test (KDT) | up to 56 hours |
| Walter A, Martz E, Weiner L, Comtet H, Glacet R, Kilic-Huck U, Bourgin P, Schroder CM, Weibel S. Sleep, rest-activity rhythm, cognitive and emotional symptoms in adult ADHD: unraveling the links with an actimetry-based approach. BMC Psychiatry. 2026 Mar 9;26(1):317. doi: 10.1186/s12888-026-07947-9. |