actigraphy

actigraphy (uncountable)

1. The use of the actigraph to record the movements of a sleeping subject, and analyze the subject's sleep patterns.
   • 2006, Steven Jones, Richard P. Bentall, The Psychology of Bipolar Disorder, Oxford University Press:

     With actigraphy, the participant wears a wrist band with a small acceleration sensor that records movement over preset epochs.

   • 2021 April 8, Pedro Bessone, Gautam Rao, Frank Schilbach, Heather Schofield, Mattie Toma, “The Economic Consequences of Increasing Sleep among the Urban Poor”, in The Quarterly Journal of Economics, number qjab013, →DOI, →ISSN:

     The urban poor in developing countries face challenging living environments, which may interfere with good sleep. Using actigraphy to measure sleep objectively, we find that low-income adults in Chennai, India sleep only 5.5 hours per night on average despite spending 8 hours in bed.