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Circadian pacemaker does not arrest in deep hibernation. Evidence for desynchronization from the light cycle

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Summary

A freerunning rhythm of locomotor activity was observed between hibernation bouts in Turkish hamsters (Mesocricetus brandti) kept in 10L:14D light-dark cycles at 10±1°C. The data further indicate an influence of natural hypothermia upon the circadian system and its ability to entrain to light-dark cycles.

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Pohl, H. Circadian pacemaker does not arrest in deep hibernation. Evidence for desynchronization from the light cycle. Experientia 43, 293–294 (1987). https://doi.org/10.1007/BF01945554

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