Clocks in the Wild: Entrainment to Natural Light
Entrainment denotes a process of coordinating the internal circadian clock to external rhythmic time-cues (Zeitgeber), mainly light. It is facilitated by stronger Zeitgeber signals and smaller period differences between the internal clock and the external Zeitgeber. The phase of entrainment ψ is a r...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2020-04-01
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| Series: | Frontiers in Physiology |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/article/10.3389/fphys.2020.00272/full |
| _version_ | 1818836369803313152 |
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| author | Christoph Schmal Hanspeter Herzel Jihwan Myung Jihwan Myung Jihwan Myung Jihwan Myung |
| author_facet | Christoph Schmal Hanspeter Herzel Jihwan Myung Jihwan Myung Jihwan Myung Jihwan Myung |
| author_sort | Christoph Schmal |
| collection | DOAJ |
| description | Entrainment denotes a process of coordinating the internal circadian clock to external rhythmic time-cues (Zeitgeber), mainly light. It is facilitated by stronger Zeitgeber signals and smaller period differences between the internal clock and the external Zeitgeber. The phase of entrainment ψ is a result of this process on the side of the circadian clock. On Earth, the period of the day-night cycle is fixed to 24 h, while the periods of circadian clocks distribute widely due to natural variation within and between species. The strength and duration of light depend locally on season and geographic latitude. Therefore, entrainment characteristics of a circadian clock vary under a local light environment and distribute along geoecological settings. Using conceptual models of circadian clocks, we investigate how local conditions of natural light shape global patterning of entrainment through seasons. This clock-side entrainment paradigm enables us to predict systematic changes in the global distribution of chronotypes. |
| first_indexed | 2024-12-19T03:05:31Z |
| format | Article |
| id | doaj.art-9a6e5af61bf94499805b04cdc56dde29 |
| institution | Directory Open Access Journal |
| issn | 1664-042X |
| language | English |
| last_indexed | 2024-12-19T03:05:31Z |
| publishDate | 2020-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physiology |
| spelling | doaj.art-9a6e5af61bf94499805b04cdc56dde292022-12-21T20:38:08ZengFrontiers Media S.A.Frontiers in Physiology1664-042X2020-04-011110.3389/fphys.2020.00272522283Clocks in the Wild: Entrainment to Natural LightChristoph Schmal0Hanspeter Herzel1Jihwan Myung2Jihwan Myung3Jihwan Myung4Jihwan Myung5Department of Biology, Faculty of Life Sciences, Institute for Theoretical Biology, Humboldt Universität zu Berlin, Berlin, GermanyDepartment Basic Sciences, Institute for Theoretical Biology, Charité – Universitätsmedizin Berlin, Berlin, GermanyGraduate Institute of Mind, Brain, and Consciousness, Taipei Medical University, Taipei, TaiwanBrain and Consciousness Research Centre, Taipei Medical University-Shuang Ho Hospital, Ministry of Health and Welfare, New Taipei City, TaiwanGraduate Institute of Medical Sciences, Taipei Medical University, Taipei, TaiwanComputational Neuroscience Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, JapanEntrainment denotes a process of coordinating the internal circadian clock to external rhythmic time-cues (Zeitgeber), mainly light. It is facilitated by stronger Zeitgeber signals and smaller period differences between the internal clock and the external Zeitgeber. The phase of entrainment ψ is a result of this process on the side of the circadian clock. On Earth, the period of the day-night cycle is fixed to 24 h, while the periods of circadian clocks distribute widely due to natural variation within and between species. The strength and duration of light depend locally on season and geographic latitude. Therefore, entrainment characteristics of a circadian clock vary under a local light environment and distribute along geoecological settings. Using conceptual models of circadian clocks, we investigate how local conditions of natural light shape global patterning of entrainment through seasons. This clock-side entrainment paradigm enables us to predict systematic changes in the global distribution of chronotypes.https://www.frontiersin.org/article/10.3389/fphys.2020.00272/fullcircadian clockentrainmentphotoperiodismseasonalitychronotypeArnold onion |
| spellingShingle | Christoph Schmal Hanspeter Herzel Jihwan Myung Jihwan Myung Jihwan Myung Jihwan Myung Clocks in the Wild: Entrainment to Natural Light Frontiers in Physiology circadian clock entrainment photoperiodism seasonality chronotype Arnold onion |
| title | Clocks in the Wild: Entrainment to Natural Light |
| title_full | Clocks in the Wild: Entrainment to Natural Light |
| title_fullStr | Clocks in the Wild: Entrainment to Natural Light |
| title_full_unstemmed | Clocks in the Wild: Entrainment to Natural Light |
| title_short | Clocks in the Wild: Entrainment to Natural Light |
| title_sort | clocks in the wild entrainment to natural light |
| topic | circadian clock entrainment photoperiodism seasonality chronotype Arnold onion |
| url | https://www.frontiersin.org/article/10.3389/fphys.2020.00272/full |
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