Relations (1)
related 2.00 — strongly supporting 3 facts
Actigraphy is a method used to measure sleep duration, as demonstrated by its use in comparing sleep patterns between student populations [1], its role as a control variable in cognitive performance studies [2], and its application in analyzing sleep regularity and duration in large-scale surveys [3].
Facts (3)
Sources
Investigating the impact of sleep quality on cognitive functions ... frontiersin.org 2 facts
claimRegression analyses indicate that Pittsburgh Sleep Quality Index (PSQI) scores significantly predict performance on cognitive measures (RAVLT, Stroop Test, RPM, and WCST) even after controlling for demographic variables (age, gender, socioeconomic status) and actigraphy-measured sleep duration and efficiency.
measurementActigraphy data showed that university students in Tokyo had shorter sleep duration (6.1 ± 1.1 hours) compared to university students in London (6.9 ± 1.3 hours) with a p-value < 0.001 and Cohen's d = 0.63.
Sleep Deprivation, Sleep Disorders, and Chronic Disease - CDC cdc.gov 1 fact
claimThe National Health and Nutrition Examination Survey (NHANES) data includes actigraphy data that can be used to examine variations in sleep onset and duration across weekdays and weekends to measure sleep regularity or rhythm.