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Brain Sci. 2017, 7(3), 29; doi:10.3390/brainsci7030029

Predictors of Nightly Subjective-Objective Sleep Discrepancy in Poor Sleepers over a Seven-Day Period

1
Division of Psychology and Mental Health, School of Health Sciences, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PL, UK
2
Centre for New Treatments and Understanding in Mental Health (CeNTrUM), University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PL, UK
3
Centre for Biostatistics, School of Health Sciences, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PL, UK
4
Sleep and Circadian Neuroscience Institute (SNCI), Nuffield Department of Clinical Neuroscience, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3PA, UK
*
Author to whom correspondence should be addressed.
Academic Editor: Célyne H. Bastien
Received: 20 December 2016 / Revised: 27 February 2017 / Accepted: 2 March 2017 / Published: 9 March 2017
(This article belongs to the Special Issue New Research in Insomnia)
View Full-Text   |   Download PDF [258 KB, uploaded 9 March 2017]

Abstract

This study sought to examine predictors of subjective/objective sleep discrepancy in poor sleepers. Forty-two individuals with insomnia symptoms (mean age = 36.2 years, 81% female) were recruited to take part in a prospective study which combined seven days of actigraphy with daily assessment of sleep perceptions, self-reported arousal, sleep effort, and mood upon awakening. A high level of intra-individual variability in measures of sleep discrepancy was observed. Multilevel modelling revealed that higher levels of pre-sleep cognitive activity and lower mood upon awakening were significantly and independently predictive of the underestimation of total sleep time. Greater levels of sleep effort predicted overestimation of sleep onset latency. These results indicate that psychophysiological variables are related to subjective/objective sleep discrepancy and may be important therapeutic targets in the management of insomnia. View Full-Text
Keywords: subjective/objective sleep discrepancy; misperception; insomnia subjective/objective sleep discrepancy; misperception; insomnia
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Herbert, V.; Pratt, D.; Emsley, R.; Kyle, S.D. Predictors of Nightly Subjective-Objective Sleep Discrepancy in Poor Sleepers over a Seven-Day Period. Brain Sci. 2017, 7, 29.

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