Repository of Research and Investigative Information

Repository of Research and Investigative Information

Ilam University of Medical Sciences

Effects of Light on Attention and Reaction Time: A Systematic Review

Mon Mar 4 07:59:15 2024

(2021) Effects of Light on Attention and Reaction Time: A Systematic Review. Journal of Research in Health Sciences. p. 9. ISSN 2228-7795

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Background: Accuracy, speed, efficiency, and applicability of activities in the workplace are among the most important effective factors on people's productivity, which is in turn affected by environmental factors, such as light. Therefore, the present research aimed to review the studies performed about the effects of light on attention and reaction time. Sudy Design: A systematic review. Methods: This review study systematically searched articles from 2000-2019 in databases of Google Scholar, ISC, SID, Magiran, Web of Science, Science Direct, PubMed, and Scopus using keywords of light, lighting, attention, and reaction time. The titles and abstracts of articles containing relevant results over the past 20 years were extracted. Thereafter, they were categorized and analyzed according to the title, author name, publication year, study method, study type, and evaluation results. Results: Based on the results, the light with shorter wavelengths, higher intensity, and higher color temperature led to suppressed melatonin, higher consciousness, less somnolence, increased attention, and faster reaction time. Simultaneous exposure to harmful levels of environmental factors affects cognitive and physiological parameters, acting independently with a separate mechanism or synergistically with a similar mechanism. The best light in the regulation of psychological, biological, and cognitive processes is bright daylight in the morning with a short wavelength, high intensity, and more lasting effects. Conclusion: As evidenced by the obtained results, light is a powerful modulator of non-visual performance in cognitive tasks. The wavelength, color temperature, and light intensity modulate brain responses to cognitive tasks, including attention and reaction time. Therefore, these parameters, along with personal and environmental factors, should be considered in designing and using light.

Item Type: Article
Golmohammadi, R.UNSPECIFIED
Khotbesara, N. S.UNSPECIFIED
Keywords: Light Lighting Attention Refractory Period enriched white-light blue-light bright light waking electroencephalogram nighttime performance exposure alertness vigilance sleepiness mood Public, Environmental & Occupational Health
Page Range: p. 9
Journal or Publication Title: Journal of Research in Health Sciences
Journal Index: ISI
Volume: 21
Number: 4
Identification Number:
ISSN: 2228-7795
Depositing User: مهندس مهدی شریفی

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