Daytime Exposure to Short Wavelength-Enriched Light Improves Cognitive Performance in Sleep-Restricted College-Aged Adults
| العنوان: | Daytime Exposure to Short Wavelength-Enriched Light Improves Cognitive Performance in Sleep-Restricted College-Aged Adults |
|---|---|
| المؤلفون: | Steven W. Lockley, Brianne A Kent, Shadab A. Rahman, Leilah K Grant, Matthew D Mayer, Robert Stickgold |
| المصدر: | Frontiers in Neurology, Vol 12 (2021) Frontiers in Neurology |
| بيانات النشر: | Frontiers Media S.A., 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | cognition, Daytime, medicine.medical_specialty, Audiology, Procedural memory, lcsh:RC346-429, 03 medical and health sciences, 0302 clinical medicine, White light, medicine, 0501 psychology and cognitive sciences, 050102 behavioral science & comparative psychology, Effects of sleep deprivation on cognitive performance, lcsh:Neurology. Diseases of the nervous system, Original Research, learning, business.industry, 05 social sciences, Illuminance, melanopic light, Sleep in non-human animals, Wavelength, Neurology, Neurology (clinical), business, light, 030217 neurology & neurosurgery, melanopsin, Photopic vision |
| الوصف: | We tested the effect of daytime indoor light exposure with varying melanopic strength on cognitive performance in college-aged students who maintained an enforced nightly sleep opportunity of 7 h (i.e., nightly sleep duration no longer than 7 h) for 1 week immediately preceding the day of light exposure. Participants (n = 39; mean age ± SD = 24.5 ± 3.2 years; 21 F) were randomized to an 8 h daytime exposure to one of four white light conditions of equal photopic illuminance (~50 lux at eye level in the vertical plane) but different melanopic illuminance [24–45 melanopic-EDI lux (melEDI)] generated by varying correlated color temperatures [3000K (low-melEDI) or 5000K (high-melEDI)] and spectra [conventional or daylight-like]. Accuracy on a 2-min addition task was 5% better in the daylight-like high-melEDI condition (highest melEDI) compared to the conventional low-melEDI condition (lowest melEDI; p < 0.01). Performance speed on the motor sequence learning task was 3.2 times faster (p < 0.05) during the daylight-like high-melEDI condition compared to the conventional low-melEDI. Subjective sleepiness was 1.5 times lower in the conventional high-melEDI condition compared to the conventional low-melEDI condition, but levels were similar between conventional low- and daylight-like high-melEDI conditions. These results demonstrate that exposure to high-melanopic (short wavelength-enriched) white light improves processing speed, working memory, and procedural learning on a motor sequence task in modestly sleep restricted young adults, and have important implications for optimizing lighting conditions in schools, colleges, and other built environments. |
| اللغة: | English |
| تدمد: | 1664-2295 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b379f8096a059cc7c127e03e80a4a1bTest https://www.frontiersin.org/articles/10.3389/fneur.2021.624217/fullTest |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....6b379f8096a059cc7c127e03e80a4a1b |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 16642295 |
|---|