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10.1371/journal.pbio.1002127 http://scihub22266oqcxt.onion/10.1371/journal.pbio.1002127 C4401556!4401556!25884537     free     free     free Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       PLoS+Biol 2015 ; 13 (4): ä Nephropedia Template TP {{tp|p=25884537|t=2015. Colour As a Signal for Entraining the Mammalian Circadian Clock |pdf=|usr=}}{{25884537}} gab.com Text Colour As a Signal for Entraining the Mammalian Circadian Clock JO: PLoS Biol http://www.kidney.de/pget.php?&tw=1&pmid=25884537 #FOAvip Twilight is characterised by changes in both quantity (?irradiance?) and quality (?colour?) of light. Animals use the variation in irradiance to adjust their internal circadian clocks, aligning their behaviour and physiology with the solar cycle. However, it is currently unknown whether changes in colour also contribute to this entrainment process. Using environmental measurements, we show here that mammalian blue?yellow colour discrimination provides a more reliable method of tracking twilight progression than simply measuring irradiance. We next use electrophysiological recordings to demonstrate that neurons in the mouse suprachiasmatic circadian clock display the cone-dependent spectral opponency required to make use of this information. Thus, our data show that some clock neurons are highly sensitive to changes in spectral composition occurring over twilight and that this input dictates their response to changes in irradiance. Finally, using mice housed under photoperiods with simulated dawn/dusk transitions, we confirm that spectral changes occurring during twilight are required for appropriate circadian alignment under natural conditions. Together, these data reveal a new sensory mechanism for telling time of day that would be available to any mammalian species capable of chromatic vision. Twit Text FOAVip Colour As a Signal for Entraining the Mammalian Circadian Clock ????PLoS Biol http://www.kidney.de/pget.php?&tw=1&pmid=25884537 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=25884537 #FOAvip English Wikipedia <ref>{{Cite pmid|25884537}}</ref> Colour As a Signal for Entraining the Mammalian Circadian Clock #MMPMID25884537 Walmsley L; Hanna L; Mouland J; Martial F; West A; Smedley AR; Bechtold DA; Webb AR; Lucas RJ; Brown TM PLoS Biol 2015[Apr]; 13 (4): ä PMID25884537show ga Twilight is characterised by changes in both quantity (?irradiance?) and quality (?colour?) of light. Animals use the variation in irradiance to adjust their internal circadian clocks, aligning their behaviour and physiology with the solar cycle. However, it is currently unknown whether changes in colour also contribute to this entrainment process. Using environmental measurements, we show here that mammalian blue?yellow colour discrimination provides a more reliable method of tracking twilight progression than simply measuring irradiance. We next use electrophysiological recordings to demonstrate that neurons in the mouse suprachiasmatic circadian clock display the cone-dependent spectral opponency required to make use of this information. Thus, our data show that some clock neurons are highly sensitive to changes in spectral composition occurring over twilight and that this input dictates their response to changes in irradiance. Finally, using mice housed under photoperiods with simulated dawn/dusk transitions, we confirm that spectral changes occurring during twilight are required for appropriate circadian alignment under natural conditions. Together, these data reveal a new sensory mechanism for telling time of day that would be available to any mammalian species capable of chromatic vision. äColour As a Signal for Entraining the Mammalian Circadian Clock (epmc).pdf DeepDyve Pubget Overpricing