Warming up for sleep? — Ground squirrels sleep during arousals from hibernation

@article{Daan1991WarmingUF,
  title={Warming up for sleep? — Ground squirrels sleep during arousals from hibernation},
  author={Serge Daan and B. Barnes and Arjen M. Strijkstra},
  journal={Neuroscience Letters},
  year={1991},
  volume={128},
  pages={265-268}
}
Hypothermia during mammalian hibernation is periodically interrupted by arousals to euthermy, the function of which is unknown. We report that arctic ground squirrels (Spermophilus parryii) consistently sleep during these arousals, and that their EEG shows the decrease in slow wave activity (delta power) that is characteristic of a declining requirement for sleep. These results are consistent with the novel hypothesis that the need for sleep slowly accumulates during torpor, and that returning… Expand
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