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The effect of COVID-19 lockdowns on sleep time perception: Comparing actigraphy and sleep diary measures.
He, Ling; Zhao, Wenrui; Gao, Yuan; Gao, Xiao; Lei, Xu.
  • He L; Sleep and NeuroImaging Center, Faculty of Psychology, Southwest University, Chongqing 400715, China; Key Laboratory of Cognition and Personality of Ministry of Education, Chongqing 400715, China.
  • Zhao W; Sleep and NeuroImaging Center, Faculty of Psychology, Southwest University, Chongqing 400715, China; Key Laboratory of Cognition and Personality of Ministry of Education, Chongqing 400715, China.
  • Gao Y; Key Laboratory of Cognition and Personality of Ministry of Education, Chongqing 400715, China.
  • Gao X; Key Laboratory of Cognition and Personality of Ministry of Education, Chongqing 400715, China.
  • Lei X; Sleep and NeuroImaging Center, Faculty of Psychology, Southwest University, Chongqing 400715, China; Key Laboratory of Cognition and Personality of Ministry of Education, Chongqing 400715, China. Electronic address: xlei@swu.edu.cn.
Int J Psychophysiol ; 167: 86-93, 2021 09.
Article in English | MEDLINE | ID: covidwho-1305246
ABSTRACT
COVID-19 has become a long-term problem, and global pandemic conditions may persist for years. Researchers are providing mounting evidence of relationships between COVID-19 lockdowns and sleep problems. However, few studies have investigated the impact of home isolation on sleep time perception, especially in comparable social isolation situations with similar pressures. Subjective sleep time perception parameters were derived from sleep diaries. Objective parameters were derived from actigraphy. Subjective and objective data were obtained between February 17 and February 27, 2020 from 70 adult participants subject to COVID-19 related lockdown provisions in China. We divided participants into a home stayers (HS) group (subject to full stay-at home orders) and an area-restricted workers (ARW) group (permitted to work at their nearby workplaces). The HS group demonstrated significantly delayed actigraphy-defined sleep onset time compared to self-reported sleep onset time; this effect was absent in the ARW group. Between-group differences in actigraphy-defined sleep onset time and significant between-group differences for actigraphy-defined and self-reported wake-up time were observed. HS group participants also presented significantly delayed actigraphy-defined wake-up time compared with self-reported wake-up time. No significant effect was found on total sleep time perception. Moreover, sleep/wake time misperception were found to be associated with daylight exposure and physical activity levels respectively. To the extent they are generalizable, these results suggest that lockdown restrictions can affect sleep onset and wake-up time perception but not total sleep time perception. Public health policy should consider such effects in the present pandemic situation and in future emergent public health situations.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Sleep / Quarantine / Medical Records / Actigraphy / Self Report / Pandemics / COVID-19 Type of study: Experimental Studies / Observational study / Randomized controlled trials Limits: Adult / Female / Humans / Male / Middle aged Country/Region as subject: Asia Language: English Journal: Int J Psychophysiol Year: 2021 Document Type: Article Affiliation country: J.ijpsycho.2021.07.001

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Sleep / Quarantine / Medical Records / Actigraphy / Self Report / Pandemics / COVID-19 Type of study: Experimental Studies / Observational study / Randomized controlled trials Limits: Adult / Female / Humans / Male / Middle aged Country/Region as subject: Asia Language: English Journal: Int J Psychophysiol Year: 2021 Document Type: Article Affiliation country: J.ijpsycho.2021.07.001