Diurnal spectral sensitivity of the acute alerting effects of light
Previous studies have demonstrated short-wavelength sensitivity for the acute alerting response to nocturnal light exposure. We assessed daytime spectral sensitivity in alertness, performance, and waking electroencephalogram (EEG). Between-subjects (n = 8 per group). Inpatient intensive physiologic...
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| Veröffentlicht in: | Sleep (New York, N.Y.) N.Y.), 2014-02, Vol.37 (2), p.271-281 |
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| container_title | Sleep (New York, N.Y.) |
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| creator | Rahman, Shadab A Flynn-Evans, Erin E Aeschbach, Daniel Brainard, George C Czeisler, Charles A Lockley, Steven W |
| description | Previous studies have demonstrated short-wavelength sensitivity for the acute alerting response to nocturnal light exposure. We assessed daytime spectral sensitivity in alertness, performance, and waking electroencephalogram (EEG).
Between-subjects (n = 8 per group).
Inpatient intensive physiologic monitoring unit.
Sixteen healthy young adults (mean age ± standard deviation = 23.8 ± 2.7 y).
Equal photon density exposure (2.8 × 10(13) photons/cm(2)/s) to monochromatic 460 nm (blue) or 555 nm (green) light for 6.5 h centered in the middle of the 16-h episode of wakefulness during the biological day. Results were compared retrospectively to 16 individuals who were administered the same light exposure during the night.
Daytime and nighttime 460-nm light exposure significantly improved auditory reaction time (P < 0.01 and P < 0.05, respectively) and reduced attentional lapses (P < 0.05), and improved EEG correlates of alertness compared to 555-nm exposure. Whereas subjective sleepiness ratings did not differ between the two spectral conditions during the daytime (P > 0.05), 460-nm light exposure at night significantly reduced subjective sleepiness compared to 555-nm light exposure at night (P < 0.05). Moreover, nighttime 460-nm exposure improved alertness to near-daytime levels.
The alerting effects of short-wavelength 460-nm light are mediated by counteracting both the circadian drive for sleepiness and homeostatic sleep pressure at night, but only via reducing the effects of homeostatic sleep pressure during the day. |
| doi_str_mv | 10.5665/sleep.3396 |
| format | Article |
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Between-subjects (n = 8 per group).
Inpatient intensive physiologic monitoring unit.
Sixteen healthy young adults (mean age ± standard deviation = 23.8 ± 2.7 y).
Equal photon density exposure (2.8 × 10(13) photons/cm(2)/s) to monochromatic 460 nm (blue) or 555 nm (green) light for 6.5 h centered in the middle of the 16-h episode of wakefulness during the biological day. Results were compared retrospectively to 16 individuals who were administered the same light exposure during the night.
Daytime and nighttime 460-nm light exposure significantly improved auditory reaction time (P < 0.01 and P < 0.05, respectively) and reduced attentional lapses (P < 0.05), and improved EEG correlates of alertness compared to 555-nm exposure. Whereas subjective sleepiness ratings did not differ between the two spectral conditions during the daytime (P > 0.05), 460-nm light exposure at night significantly reduced subjective sleepiness compared to 555-nm light exposure at night (P < 0.05). Moreover, nighttime 460-nm exposure improved alertness to near-daytime levels.
The alerting effects of short-wavelength 460-nm light are mediated by counteracting both the circadian drive for sleepiness and homeostatic sleep pressure at night, but only via reducing the effects of homeostatic sleep pressure during the day.</description><identifier>ISSN: 0161-8105</identifier><identifier>EISSN: 1550-9109</identifier><identifier>DOI: 10.5665/sleep.3396</identifier><identifier>PMID: 24501435</identifier><language>eng</language><publisher>United States: Associated Professional Sleep Societies, LLC</publisher><subject>Adult ; Attention - physiology ; Attention - radiation effects ; Circadian Rhythm - physiology ; Circadian Rhythm - radiation effects ; Darkness ; Diurnal Spectral Sensitivity of the Acute Alerting Effects of Light ; Electroencephalography ; Homeostasis ; Humans ; Light ; Male ; Sleep Stages - physiology ; Sleep Stages - radiation effects ; Time Factors ; Wakefulness - physiology ; Wakefulness - radiation effects ; Young Adult</subject><ispartof>Sleep (New York, N.Y.), 2014-02, Vol.37 (2), p.271-281</ispartof><rights>2014 Associated Professional Sleep Societies, LLC. 2014</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c444t-d4193371230b4fa323bfff1c0ade3aa4af43549249e6bc78acda2870ae474f9e3</citedby><cites>FETCH-LOGICAL-c444t-d4193371230b4fa323bfff1c0ade3aa4af43549249e6bc78acda2870ae474f9e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24501435$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Rahman, Shadab A</creatorcontrib><creatorcontrib>Flynn-Evans, Erin E</creatorcontrib><creatorcontrib>Aeschbach, Daniel</creatorcontrib><creatorcontrib>Brainard, George C</creatorcontrib><creatorcontrib>Czeisler, Charles A</creatorcontrib><creatorcontrib>Lockley, Steven W</creatorcontrib><title>Diurnal spectral sensitivity of the acute alerting effects of light</title><title>Sleep (New York, N.Y.)</title><addtitle>Sleep</addtitle><description>Previous studies have demonstrated short-wavelength sensitivity for the acute alerting response to nocturnal light exposure. We assessed daytime spectral sensitivity in alertness, performance, and waking electroencephalogram (EEG).
Between-subjects (n = 8 per group).
Inpatient intensive physiologic monitoring unit.
Sixteen healthy young adults (mean age ± standard deviation = 23.8 ± 2.7 y).
Equal photon density exposure (2.8 × 10(13) photons/cm(2)/s) to monochromatic 460 nm (blue) or 555 nm (green) light for 6.5 h centered in the middle of the 16-h episode of wakefulness during the biological day. Results were compared retrospectively to 16 individuals who were administered the same light exposure during the night.
Daytime and nighttime 460-nm light exposure significantly improved auditory reaction time (P < 0.01 and P < 0.05, respectively) and reduced attentional lapses (P < 0.05), and improved EEG correlates of alertness compared to 555-nm exposure. Whereas subjective sleepiness ratings did not differ between the two spectral conditions during the daytime (P > 0.05), 460-nm light exposure at night significantly reduced subjective sleepiness compared to 555-nm light exposure at night (P < 0.05). Moreover, nighttime 460-nm exposure improved alertness to near-daytime levels.
The alerting effects of short-wavelength 460-nm light are mediated by counteracting both the circadian drive for sleepiness and homeostatic sleep pressure at night, but only via reducing the effects of homeostatic sleep pressure during the day.</description><subject>Adult</subject><subject>Attention - physiology</subject><subject>Attention - radiation effects</subject><subject>Circadian Rhythm - physiology</subject><subject>Circadian Rhythm - radiation effects</subject><subject>Darkness</subject><subject>Diurnal Spectral Sensitivity of the Acute Alerting Effects of Light</subject><subject>Electroencephalography</subject><subject>Homeostasis</subject><subject>Humans</subject><subject>Light</subject><subject>Male</subject><subject>Sleep Stages - physiology</subject><subject>Sleep Stages - radiation effects</subject><subject>Time Factors</subject><subject>Wakefulness - physiology</subject><subject>Wakefulness - radiation effects</subject><subject>Young Adult</subject><issn>0161-8105</issn><issn>1550-9109</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpVUF1LwzAUDaK4OX3xB0ifhc6kN2mXF0E2v2Dgiz6HNL3ZIl1bkmywf2_rdOjL_eCce-7hEHLN6FTkubgLNWI3BZD5CRkzIWgqGZWnZExZztIZo2JELkL4pP3OJZyTUcYFZRzEmMwXbusbXSehQxP9MGATXHQ7F_dJa5O4xkSbbexrjT66ZpWgtT03DGjtVut4Sc6srgNe_fQJ-Xh6fJ-_pMu359f5wzI1nPOYVpxJgIJlQEtuNWRQWmuZobpC0Jpr2zviMuMS89IUM20qnc0KqpEX3EqECbk_6HbbcoOVwWYwrDrvNtrvVaud-o80bq1W7U6BpDRn0AvcHgSMb0PwaI-3jKohSvUdpRqi7Mk3f78dqb_ZwRcscXI0</recordid><startdate>20140201</startdate><enddate>20140201</enddate><creator>Rahman, Shadab A</creator><creator>Flynn-Evans, Erin E</creator><creator>Aeschbach, Daniel</creator><creator>Brainard, George C</creator><creator>Czeisler, Charles A</creator><creator>Lockley, Steven W</creator><general>Associated Professional Sleep Societies, LLC</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>5PM</scope></search><sort><creationdate>20140201</creationdate><title>Diurnal spectral sensitivity of the acute alerting effects of light</title><author>Rahman, Shadab A ; Flynn-Evans, Erin E ; Aeschbach, Daniel ; Brainard, George C ; Czeisler, Charles A ; Lockley, Steven W</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c444t-d4193371230b4fa323bfff1c0ade3aa4af43549249e6bc78acda2870ae474f9e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Adult</topic><topic>Attention - physiology</topic><topic>Attention - radiation effects</topic><topic>Circadian Rhythm - physiology</topic><topic>Circadian Rhythm - radiation effects</topic><topic>Darkness</topic><topic>Diurnal Spectral Sensitivity of the Acute Alerting Effects of Light</topic><topic>Electroencephalography</topic><topic>Homeostasis</topic><topic>Humans</topic><topic>Light</topic><topic>Male</topic><topic>Sleep Stages - physiology</topic><topic>Sleep Stages - radiation effects</topic><topic>Time Factors</topic><topic>Wakefulness - physiology</topic><topic>Wakefulness - radiation effects</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rahman, Shadab A</creatorcontrib><creatorcontrib>Flynn-Evans, Erin E</creatorcontrib><creatorcontrib>Aeschbach, Daniel</creatorcontrib><creatorcontrib>Brainard, George C</creatorcontrib><creatorcontrib>Czeisler, Charles A</creatorcontrib><creatorcontrib>Lockley, Steven W</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Sleep (New York, N.Y.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rahman, Shadab A</au><au>Flynn-Evans, Erin E</au><au>Aeschbach, Daniel</au><au>Brainard, George C</au><au>Czeisler, Charles A</au><au>Lockley, Steven W</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Diurnal spectral sensitivity of the acute alerting effects of light</atitle><jtitle>Sleep (New York, N.Y.)</jtitle><addtitle>Sleep</addtitle><date>2014-02-01</date><risdate>2014</risdate><volume>37</volume><issue>2</issue><spage>271</spage><epage>281</epage><pages>271-281</pages><issn>0161-8105</issn><eissn>1550-9109</eissn><abstract>Previous studies have demonstrated short-wavelength sensitivity for the acute alerting response to nocturnal light exposure. We assessed daytime spectral sensitivity in alertness, performance, and waking electroencephalogram (EEG).
Between-subjects (n = 8 per group).
Inpatient intensive physiologic monitoring unit.
Sixteen healthy young adults (mean age ± standard deviation = 23.8 ± 2.7 y).
Equal photon density exposure (2.8 × 10(13) photons/cm(2)/s) to monochromatic 460 nm (blue) or 555 nm (green) light for 6.5 h centered in the middle of the 16-h episode of wakefulness during the biological day. Results were compared retrospectively to 16 individuals who were administered the same light exposure during the night.
Daytime and nighttime 460-nm light exposure significantly improved auditory reaction time (P < 0.01 and P < 0.05, respectively) and reduced attentional lapses (P < 0.05), and improved EEG correlates of alertness compared to 555-nm exposure. Whereas subjective sleepiness ratings did not differ between the two spectral conditions during the daytime (P > 0.05), 460-nm light exposure at night significantly reduced subjective sleepiness compared to 555-nm light exposure at night (P < 0.05). Moreover, nighttime 460-nm exposure improved alertness to near-daytime levels.
The alerting effects of short-wavelength 460-nm light are mediated by counteracting both the circadian drive for sleepiness and homeostatic sleep pressure at night, but only via reducing the effects of homeostatic sleep pressure during the day.</abstract><cop>United States</cop><pub>Associated Professional Sleep Societies, LLC</pub><pmid>24501435</pmid><doi>10.5665/sleep.3396</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0161-8105 |
| ispartof | Sleep (New York, N.Y.), 2014-02, Vol.37 (2), p.271-281 |
| issn | 0161-8105 1550-9109 |
| language | eng |
| recordid | cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_3900613 |
| source | Oxford University Press Journals All Titles (1996-Current); MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | Adult Attention - physiology Attention - radiation effects Circadian Rhythm - physiology Circadian Rhythm - radiation effects Darkness Diurnal Spectral Sensitivity of the Acute Alerting Effects of Light Electroencephalography Homeostasis Humans Light Male Sleep Stages - physiology Sleep Stages - radiation effects Time Factors Wakefulness - physiology Wakefulness - radiation effects Young Adult |
| title | Diurnal spectral sensitivity of the acute alerting effects of light |
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