Time estimation during nocturnal sleep in human subjects

Neuroscience Research
Sayaka AritakeKiyohisa Takahashi

Abstract

It has been postulated that time estimation during nocturnal sleep in humans can be explained by an interval timing clock inside the brain. However, no systematic investigations have been carried out with respect to how the human brain perceives the passage of time during sleep. The brain mechanisms of over- or underestimation of time spent in sleep have not yet been clarified. Here, we carried out an experimental study in which 11 healthy volunteers participated in time estimation trials scheduled six times during 9 h nocturnal sleep periods, under carefully controlled conditions. The time estimation ratio (TER: a ratio of subjective passage of time to actual time interval) decreased significantly from the first to the sixth trial. Individual TER was positively correlated with slow wave sleep prior to the trial, while it was negatively correlated with REM sleep. Our results indicate that the human brain has an ability to estimate the passage of time during nocturnal sleep without referring to time cues, and that the accuracy of this function fluctuates from overestimation in the early hours of sleep to underestimation in the last hours of sleep.

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Citations

Mar 11, 2011·The International Journal of Clinical and Experimental Hypnosis·Levente MóróSakari Kallio
Aug 19, 2014·Sleep Medicine·Leonardo I GoulartMonica L Andersen
Aug 3, 2010·Neuroscience Research·Sayaka Aritake-OkadaKazuo Mishima
Jul 15, 2009·Sleep Medicine·Liborio ParrinoMario Giovanni Terzano
May 12, 2009·Behavioural Brain Research·Jakub SpätiChristian Cajochen
Dec 6, 2008·Neuroscience Research·Sayaka Aritake-OkadaKazuo Mishima
May 4, 2010·Journal of Child Health Care : for Professionals Working with Children in the Hospital and Community·Mindy Engle-FriedmanSuzanne Riela
Jan 1, 2019·Aerobiologia·Victor BandalyPierre Le Cann
Jul 1, 2017·Food and Environmental Virology·Victor BandalyYves Andres
Oct 21, 2020·Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova·Yu V UkraintsevaM O Shilov

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