Desynchronization of human circadian rhythms.

  title={Desynchronization of human circadian rhythms.},
  author={J C Aschoff and U. Gerecke and R{\"u}tger A. Wever},
  journal={The Japanese journal of physiology},
  volume={17 4},
Fifty human sub jects have been kept in an underground bunker in conditions of continuous illumination, each in complete isolation and without any time-telling device. Rectal temperature was recorded continuously by means of an electric thermometer, and urine samples, collected in intervals of the subjects own choice, were analyzed for excretion of water, sodium, calcium and potassium. Several systems of electric contacts served to survey the subjects general activities. All subjects showed… 
Desynchronisationen circadianer Rhythmen innerhalb einer isolierten Gruppe
  • E. Pöppel
  • Biology
    Pflüger's Archiv für die gesamte Physiologie des Menschen und der Tiere
  • 2004
The increase of body temperature during sleep and the course of urine excretion, which is interpreted as beat, indicate that this subject was in fact synchronized in his activity period with the group during the first half of the experiment, but that the rhythm of the vegetative functions was free running with another period (internal desynchronization).
Circadiane Periodik des Menschen unter dem Einfluß von Licht-Dunkel-Wechseln unterschiedlicher Periode
SummaryCircadian rhythms of 10 subjects were studied under the influence of an artificial light-dark cycle including twilight-transitions. The Zeitgeber was changed to periods either longer or
The dependence of onset and duration of sleep on the circadian rhythm of rectal temperature
The sleep-wake cycle and the circadian rhythm of rectal temperature were recorded in subjects who lived singly in an isolation unit. In 10 subjects, the freerunning rhythms remained internally
The influence of self-controlled changes in ambient temperature on autonomous circadian rhythms in man
SummaryIn human experiments under constant conditions where circadian rhythms run autonomously, eight subjects were exposed to a self-controlled cycle of ambient temperature: room temperature had
Influence of physical workload on freerunning circadian rhythms of man
The hypothesis is advanced that the period of an autonomous rhythm becomes normally independent of physical workload by way of a compensation mechanism.
Human circadian rhythms under the influence of weak electric fields and the different aspects of these studies
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Circadian rhythms of man have been proven to be of endogenous origin, just as other organism from unicel lular ones up to pr imates, and in a constant environment without t ime cues the rhythms continue autonomously periods which deviate sligktly from 24 hr.
Simultaneous determination of circadian rhythms of locomotor activity and body temperature in the rat.
Results indicate that the bursts of body temperature increment were dependent on those of the locomotor activity, and manifestation of the circadian rhythm per se of bodyTemperature could not be explained as resulting exclusively from the circadian fluctuation of locomotorActivity.
Gesetzmäßigkeiten der circadianen Periodik des Menschen, geprüft an der Wirkung eines schwachen elektrischen Wechselfeldes
SummaryThe human circadian rhythm can be influenced regularly by a weak alternating electric field with a frequency of 10 cps. In contrast to the effects of environmental illumination, this field
Fractional desynchronization of human circadian rhythms
Results obtained with this method of fractional desynchronization do not only assist in evaluating properties of the circadian system, but also assist in the search for physiological interconnections between different variables.
Transient circadian internal desynchronization after light-dark phase shift in monkeys.
The results suggest that the circadian timing system in S. sciureus may consist of several spontaneously oscillating units which can become transiently uncoupled during pertubations of environmental time cues.


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