In search of blue-light effects on cognitive control

Abstract People are constantly exposed to blue light while engaging in work. It is thus crucial to understand if vast exposure to blue light influences cognitive control, which is essential for working efficiently. Previous studies proposed that the stimulation of intrinsically photosensitive retina...

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Autores principales:	Hsing-Hao Lee, Yun-Chen Tu, Su-Ling Yeh
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d67d5576657549cf9aa5166aa94d2d9d
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id	oai:doaj.org-article:d67d5576657549cf9aa5166aa94d2d9d
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spelling	oai:doaj.org-article:d67d5576657549cf9aa5166aa94d2d9d2021-12-02T18:46:54ZIn search of blue-light effects on cognitive control10.1038/s41598-021-94989-62045-2322https://doaj.org/article/d67d5576657549cf9aa5166aa94d2d9d2021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94989-6https://doaj.org/toc/2045-2322Abstract People are constantly exposed to blue light while engaging in work. It is thus crucial to understand if vast exposure to blue light influences cognitive control, which is essential for working efficiently. Previous studies proposed that the stimulation of intrinsically photosensitive retinal ganglion cells (ipRGCs), a newly discovered photoreceptor that is highly sensitive to blue light, could modulate non-image forming functions. Despite studies that showed blue light (or ipRGCs) enhances brain activations in regions related to cognitive control, how exposure to blue light changes our cognitive control behaviorally remains elusive. We examined whether blue light influences cognitive control through three behavioral tasks in three studies: the sustained attention to response task (SART), the task-switching paradigm, and the Stroop task. Classic effects of the SART, switch cost, and the Stroop effect were found, but no differences were observed in results of different background lights across the six experiments. Together, we conclude that these domains of cognitive control are not influenced by blue light and ipRGCs, and whether the enhancement of blue light on brain activities extends to the behavioral level should be carefully re-examined.Hsing-Hao LeeYun-Chen TuSu-Ling YehNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hsing-Hao Lee Yun-Chen Tu Su-Ling Yeh In search of blue-light effects on cognitive control
description	Abstract People are constantly exposed to blue light while engaging in work. It is thus crucial to understand if vast exposure to blue light influences cognitive control, which is essential for working efficiently. Previous studies proposed that the stimulation of intrinsically photosensitive retinal ganglion cells (ipRGCs), a newly discovered photoreceptor that is highly sensitive to blue light, could modulate non-image forming functions. Despite studies that showed blue light (or ipRGCs) enhances brain activations in regions related to cognitive control, how exposure to blue light changes our cognitive control behaviorally remains elusive. We examined whether blue light influences cognitive control through three behavioral tasks in three studies: the sustained attention to response task (SART), the task-switching paradigm, and the Stroop task. Classic effects of the SART, switch cost, and the Stroop effect were found, but no differences were observed in results of different background lights across the six experiments. Together, we conclude that these domains of cognitive control are not influenced by blue light and ipRGCs, and whether the enhancement of blue light on brain activities extends to the behavioral level should be carefully re-examined.
format	article
author	Hsing-Hao Lee Yun-Chen Tu Su-Ling Yeh
author_facet	Hsing-Hao Lee Yun-Chen Tu Su-Ling Yeh
author_sort	Hsing-Hao Lee
title	In search of blue-light effects on cognitive control
title_short	In search of blue-light effects on cognitive control
title_full	In search of blue-light effects on cognitive control
title_fullStr	In search of blue-light effects on cognitive control
title_full_unstemmed	In search of blue-light effects on cognitive control
title_sort	in search of blue-light effects on cognitive control
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d67d5576657549cf9aa5166aa94d2d9d
work_keys_str_mv	AT hsinghaolee insearchofbluelighteffectsoncognitivecontrol AT yunchentu insearchofbluelighteffectsoncognitivecontrol AT sulingyeh insearchofbluelighteffectsoncognitivecontrol
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In search of blue-light effects on cognitive control

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