Effect of Heliogeophysical and Atmospheric Factors on the Degree of Synchronization of Ultradian Rhythms of Body Temperature in Mice

Diatroptov, M. E.; Arseniev, G. N.; Ligun, Natalya V.; Диатроптова, М. А.; Дорохов, В. Б.

doi:10.1007/s10517-023-05872-5

Cited by 1 publication

(1 citation statement)

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“…On the other hand, purely internal—however stochastic—pacemakers cannot explain ultradian events, but obviously, external environmental and social factors should also have prominent effects. Note, e.g., that in animal models a fluctuations of weak magnetic field had a modulatory effect on body temperature 8 , 24 , 25 , or, in the absence of relevant geophysical cycles, interaction with conspecifics can lead to synchronization of physical activity 10 .…”

Section: Introductionmentioning

confidence: 99%

Hierarchical organization of human physical activity

Búzás,

Makai,

Groma

et al. 2024

Sci Rep

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Human physical activity (HPA), a fundamental physiological signal characteristic of bodily motion is of rapidly growing interest in multidisciplinary research. Here we report the existence of hitherto unidentified hierarchical levels in the temporal organization of HPA on the ultradian scale: on the minute's scale, passive periods are followed by activity bursts of similar intensity (‘quanta’) that are organized into superstructures on the hours- and on the daily scale. The time course of HPA can be considered a stochastic, quasi-binary process, where quanta, assigned to task-oriented actions are organized into work packages on higher levels of hierarchy. In order to grasp the essence of this complex dynamic behaviour, we established a stochastic mathematical model which could reproduce the main statistical features of real activity time series. The results are expected to provide important data for developing novel behavioural models and advancing the diagnostics of neurological or psychiatric diseases.

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