Improving actigraphic sleep estimates in insomnia and dementia: how many nights?

@article{Someren2007ImprovingAS,
  title={Improving actigraphic sleep estimates in insomnia and dementia: how many nights?},
  author={Eus J W Van Someren},
  journal={Journal of sleep research},
  year={2007},
  volume={16 3},
  pages={269-75}
}
In order to investigate how the duration of actigraphic recordings affects the reliability of actigraphic estimates of sleep and 24-h activity rhythm variables, two to 3 weeks of actigraphy were recorded, from which pairs of variables derived from two periods of increasing length (1-10 days) were compared. Two groups were studied: (1) 10 subjects suffering from primary insomnia; and (2) 12 demented elderly subjects living semi-independently in group care facilities of homes for the elderly… CONTINUE READING

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