The effects of screen light filtering software on cognitive performance and sleep among night workers

Background: Previous studies have reported impaired performance, sleepiness and sleep deprivation among night workers. The purpose of this study was to investigate the effect of color screen Light Filtering software on cognitive performance, alertness and sleep quality among night shift operators of...

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Main Authors: Reza Kazemi, Negar Alighanbari, Zahra Zamanian
Format: Article
Language:English
Published: Tabriz University of Medical Sciences 2019-08-01
Series:Health Promotion Perspectives
Subjects:
Online Access:https://hpp.tbzmed.ac.ir/PDF/hpp-28605
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author Reza Kazemi
Negar Alighanbari
Zahra Zamanian
author_facet Reza Kazemi
Negar Alighanbari
Zahra Zamanian
author_sort Reza Kazemi
collection DOAJ
description Background: Previous studies have reported impaired performance, sleepiness and sleep deprivation among night workers. The purpose of this study was to investigate the effect of color screen Light Filtering software on cognitive performance, alertness and sleep quality among night shift operators of a medical emergency operations center. Methods: This field trial interventional study was carried out among 30 nightshift operators of shiraz emergency control center. The baseline assessments were carried out under the existing computer screen light conditions in the week preceding the installation of f.lux software. The same measurements were repeated again 4 weeks after installing the software. The cognitive performance of the participants was measured using continuous performance test (CPT) and n-back, while their sleep quality was assessed through Pietersburg Sleep Quality Index (PSQI). Further, to assess their subjective and objective alertness, Stanford sleepiness index and go/nogo test were used, respectively. Results: The results of this study showed that Screen Light Filtering software significantly increased subjective (P<0.001) and objective alertness (P<0.05). Additionally, the performance of the working memory (P=0.008) and sleep quality (P=0.008) improved significantly after the intervention. Conclusion: The results revealed that using Screen Light Filtering software is an effective and low-cost method to improve sleep quality and cognitive performance since it filters the short wavelength part of the spectrum and helps body adaptation.
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spelling doaj.art-e9d61e6a0aa5419abc351e38f31efaef2022-12-22T02:32:40ZengTabriz University of Medical SciencesHealth Promotion Perspectives2228-64972019-08-019323324010.15171/hpp.2019.32hpp-28605The effects of screen light filtering software on cognitive performance and sleep among night workersReza Kazemi0Negar Alighanbari1Zahra Zamanian2Ergonomics Department, School of Health, Shiraz University of Medical Sciences, Shiraz, IranSchool of Health, Shiraz University of Medical Sciences, Shiraz, IranErgonomics Department, School of Health, Shiraz University of Medical Sciences, Shiraz, IranBackground: Previous studies have reported impaired performance, sleepiness and sleep deprivation among night workers. The purpose of this study was to investigate the effect of color screen Light Filtering software on cognitive performance, alertness and sleep quality among night shift operators of a medical emergency operations center. Methods: This field trial interventional study was carried out among 30 nightshift operators of shiraz emergency control center. The baseline assessments were carried out under the existing computer screen light conditions in the week preceding the installation of f.lux software. The same measurements were repeated again 4 weeks after installing the software. The cognitive performance of the participants was measured using continuous performance test (CPT) and n-back, while their sleep quality was assessed through Pietersburg Sleep Quality Index (PSQI). Further, to assess their subjective and objective alertness, Stanford sleepiness index and go/nogo test were used, respectively. Results: The results of this study showed that Screen Light Filtering software significantly increased subjective (P<0.001) and objective alertness (P<0.05). Additionally, the performance of the working memory (P=0.008) and sleep quality (P=0.008) improved significantly after the intervention. Conclusion: The results revealed that using Screen Light Filtering software is an effective and low-cost method to improve sleep quality and cognitive performance since it filters the short wavelength part of the spectrum and helps body adaptation.https://hpp.tbzmed.ac.ir/PDF/hpp-28605Cognitive functionNight shift workSleepinessSleep
spellingShingle Reza Kazemi
Negar Alighanbari
Zahra Zamanian
The effects of screen light filtering software on cognitive performance and sleep among night workers
Health Promotion Perspectives
Cognitive function
Night shift work
Sleepiness
Sleep
title The effects of screen light filtering software on cognitive performance and sleep among night workers
title_full The effects of screen light filtering software on cognitive performance and sleep among night workers
title_fullStr The effects of screen light filtering software on cognitive performance and sleep among night workers
title_full_unstemmed The effects of screen light filtering software on cognitive performance and sleep among night workers
title_short The effects of screen light filtering software on cognitive performance and sleep among night workers
title_sort effects of screen light filtering software on cognitive performance and sleep among night workers
topic Cognitive function
Night shift work
Sleepiness
Sleep
url https://hpp.tbzmed.ac.ir/PDF/hpp-28605
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