Category Archives: J Biol Rhythms

Revealing Oft-cited but Unpublished Papers of Colin Pittendrigh and Coworkers.






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Revealing Oft-cited but Unpublished Papers of Colin Pittendrigh and Coworkers.
J Biol Rhythms. 2017 Jul 01;:748730417716685
Authors: Tackenberg MC, Johnson CH, Page TL, Daan S
Abstract
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Comparing the Morningness-Eveningness Questionnaire and Munich ChronoType Questionnaire to the Dim Light Melatonin Onset.






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Comparing the Morningness-Eveningness Questionnaire and Munich ChronoType Questionnaire to the Dim Light Melatonin Onset.
J Biol Rhythms. 2015 Aug 4;
Authors: Kantermann T, Sung H, Burgess HJ
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Timing of Examinations Affects School Performance Differently in Early and Late Chronotypes.






Timing of Examinations Affects School Performance Differently in Early and Late Chronotypes.
J Biol Rhythms. 2014 Dec 23;
Authors: van der Vinne V, Zerbini G, Siersema A, Pieper A, Merrow M, Hut RA, Roenneberg T, Kan… Continue reading






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Body temperature predicts the direction of internal desynchronization in humans isolated from time cues.






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Body temperature predicts the direction of internal desynchronization in humans isolated from time cues.

J Biol Rhythms. 2013 Dec;28(6):403-11

Authors: Daan S, Honma S, Honma K

Abstract
This publication presents a new analysis of experiments that were carried out in human subjects in isolation from time cues, under supervision of Jürgen Aschoff and Rütger Wever at the Max Planck Institute for Behavioural Physiology (Erling-Andechs, Germany, 1964-1974). Mean rectal temperatures (tb) were compared between subjects who showed internal desynchronization (ID) and internal synchronization (IS) of the endogenous rhythms of sleep-wakefulness and of body temperature. The results showed that tb was reduced in long ID (circadian sleep-wake cycle length [τ(SW)] > 27 h) and increased in short ID (τ(SW) < 22 h) relative to IS. In subjects with both ID and IS sections in the complete record, these differences were also found when comparing only the IS sections: Low tb during IS predicts the later occurrence of long ID, and high tb predicts the incidence of short ID. While this association is associated with sex differences in tb, it also occurs within each sex. To the extent that the variation in tb reflects the variation in heat production (metabolic rate), the results are consistent with the proposition that the spontaneous frequency of the human sleep-wake oscillator is associated with the metabolic rate, as suggested on the basis of the proportionality of meal frequency and sleep-wake frequency. The finding thus has implications for our views on spontaneous sleep timing.

PMID: 24336418 [PubMed – indexed for MEDLINE]

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