The role of actigraphy in the study of sleep and circadian rhythms.

  title={The role of actigraphy in the study of sleep and circadian rhythms.},
  author={Sonia Ancoli-Israel and Roger Cole and Cathy A. Alessi and Mark J. Chambers and William H. Moorcroft and Charles P. Pollak},
  volume={26 3},
In summary, although actigraphy is not as accurate as PSG for determining some sleep measurements, studies are in general agreement that actigraphy, with its ability to record continuously for long time periods, is more reliable than sleep logs which rely on the patients' recall of how many times they woke up or. [] Key Result Results of actigraphic recordings correlate well with measurements of melatonin and of core body temperature rhythms. Activity records also show sleep disturbance when sleep is…

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