Does subjective sleepiness predict objective sleep propensity?

Sleep
Michelle ShortHelen Wright

Abstract

Research has shown variability in the correlations observed between subjective sleepiness and objective polysomnographic sleep latency. The present study evaluated whether eliciting subjective judgments of sleepiness after a 1-minute period of quiet with eyes closed would strengthen the relationship between subjective and objective measures. Subjective judgments of sleepiness were collected following three 1-minute conditions (eyes-closed, eyes-open fixed gaze, and visual reaction time task) using the Stanford Sleepiness Scale and a visual analogue scale, prior to a measure of polysomnographic sleep latency. For each participant, subjective and objective measures were obtained a total of 12 times half-hourly from 20:00 to 01:30. Sleep laboratory of the Flinders University. Participants were 12 young adult good sleepers. Within-subjects correlations between subjective and objective sleepiness across an evening period of increasing sleepiness were generally high (means approximately -0.63) and significant (P < 0.05). Contrary to expectation, there were no differences in correlations among the 3 conditions. Unexpectedly, when the correlations were calculated across subjects, correlations were noticeably weaker (means around -0.42)...Continue Reading

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Citations

Aug 14, 2018·American Journal of Health Promotion : AJHP·Michael A Grandner
Jun 27, 2019·BioPsychoSocial Medicine·Sevda Saleh-GhadimiHamed Jafari-Vayghan
Jan 1, 2010·Minimally Invasive Surgery·Oumar KuzbariHoward Minkoff
Dec 3, 2014·Pharmacological Reports : PR·Lukasz OkruszekAdam Wichniak
Feb 6, 2019·International Journal of Environmental Research and Public Health·Jianfen ZhangGuansheng Ma
Jun 23, 2015·Frontiers in Neurology·Michael A GrandnerGirardin Jean-Louis

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