Biological and psychological correlates of self-reported and objective sleep measures

Hdl Handle:
http://hdl.handle.net/10142/605092
Title:
Biological and psychological correlates of self-reported and objective sleep measures
Authors:
Jackowska, Marta; Ronaldson, Amy; Brown, Jennie; Steptoe, Andrew
Abstract:
Objective: Objective and self-reported sleep are only moderately correlated and it is uncertain if these two types of sleep measures are associated with distinct biological and psychological outcomes. Methods: Participants were 119 healthy women aged 26 years on average. Cortisol and blood pressure assessed over one day were the measures of biological function. Psychological variables included optimism, life satisfaction, positive and negative affect as well as emotional distress. Sleep was assessed with the Pittsburgh Quality Index (PSQI), wrist actigraphy and sleep diaries. Results: Global sleep ratings on the PSQI were unrelated to objective sleep efficiency, duration or latency. Sleep duration derived from sleep diaries was highly correlated with objective duration but was unrelated to the PSQI measure. More disturbed sleep on the PSQI was associated with lower psychological wellbeing, as indicated by reduced levels of optimism, life satisfaction and positive affect as well as greater negative affect and emotional distress. Objective sleep efficiency was reduced among participants with lower positive and higher negative affect but there were no other associations between objective sleep indicators and psychological variables tested in our study. Participants with poorer self-reported sleep had lower cortisol awakening response while those with longer objective sleep latency had higher diastolic blood pressure, independently of covariates. Conclusion: Our study reveals that self-reported and objective sleep measures, in particular those regarding sleep quality, are weakly associated but have different psychological and biological correlates. This suggests that findings relating self-reported sleep may not necessarily be corroborated by objective sleep indicators.
Affiliation:
University of Roehampton; University College London; University of East London; University College London
Citation:
Biological and psychological correlates of self-reported and objective sleep measures 2016, 84:52 Journal of Psychosomatic Research
Publisher:
Elsevier
Journal:
Journal of Psychosomatic Research
Issue Date:
May-2016
URI:
http://hdl.handle.net/10142/605092
DOI:
10.1016/j.jpsychores.2016.03.017
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S0022399916300691
Type:
Article
Language:
en
Description:
Accepted Date: 20/03/2016; Version: Author Manuscript / Post-Print; Exceptions: None
ISSN:
00223999
Sponsors:
The Biotechnology and Biological Sciences Research Council, Unilever Discover and the Economic and Social Research Council
Appears in Collections:
Department of Life Sciences Collection

Full metadata record

DC FieldValue Language
dc.contributor.authorJackowska, Martaen
dc.contributor.authorRonaldson, Amyen
dc.contributor.authorBrown, Jennieen
dc.contributor.authorSteptoe, Andrewen
dc.date.accessioned2016-04-12T15:43:12Zen
dc.date.available2016-04-12T15:43:12Zen
dc.date.issued2016-05en
dc.identifier.citationBiological and psychological correlates of self-reported and objective sleep measures 2016, 84:52 Journal of Psychosomatic Researchen
dc.identifier.issn00223999en
dc.identifier.doi10.1016/j.jpsychores.2016.03.017en
dc.identifier.urihttp://hdl.handle.net/10142/605092en
dc.descriptionAccepted Date: 20/03/2016; Version: Author Manuscript / Post-Print; Exceptions: Noneen
dc.description.abstractObjective: Objective and self-reported sleep are only moderately correlated and it is uncertain if these two types of sleep measures are associated with distinct biological and psychological outcomes. Methods: Participants were 119 healthy women aged 26 years on average. Cortisol and blood pressure assessed over one day were the measures of biological function. Psychological variables included optimism, life satisfaction, positive and negative affect as well as emotional distress. Sleep was assessed with the Pittsburgh Quality Index (PSQI), wrist actigraphy and sleep diaries. Results: Global sleep ratings on the PSQI were unrelated to objective sleep efficiency, duration or latency. Sleep duration derived from sleep diaries was highly correlated with objective duration but was unrelated to the PSQI measure. More disturbed sleep on the PSQI was associated with lower psychological wellbeing, as indicated by reduced levels of optimism, life satisfaction and positive affect as well as greater negative affect and emotional distress. Objective sleep efficiency was reduced among participants with lower positive and higher negative affect but there were no other associations between objective sleep indicators and psychological variables tested in our study. Participants with poorer self-reported sleep had lower cortisol awakening response while those with longer objective sleep latency had higher diastolic blood pressure, independently of covariates. Conclusion: Our study reveals that self-reported and objective sleep measures, in particular those regarding sleep quality, are weakly associated but have different psychological and biological correlates. This suggests that findings relating self-reported sleep may not necessarily be corroborated by objective sleep indicators.en
dc.description.provenanceSubmitted by Anne Pietsch (a.pietsch@roehampton.ac.uk) on 2016-04-12T15:42:34Z No. of bitstreams: 1 Jackowska, 2016, Biological and psychological correlates of self-reported and objective sleep measures .pdf: 226828 bytes, checksum: ee2ddd05480e9972e1dff7bcd43eed00 (MD5)en
dc.description.provenanceApproved for entry into archive by Anne Pietsch (a.pietsch@roehampton.ac.uk) on 2016-04-12T15:43:10Z (GMT) No. of bitstreams: 1 Jackowska, 2016, Biological and psychological correlates of self-reported and objective sleep measures .pdf: 226828 bytes, checksum: ee2ddd05480e9972e1dff7bcd43eed00 (MD5)en
dc.description.provenanceMade available in DSpace on 2016-04-12T15:43:12Z (GMT). No. of bitstreams: 1 Jackowska, 2016, Biological and psychological correlates of self-reported and objective sleep measures .pdf: 226828 bytes, checksum: ee2ddd05480e9972e1dff7bcd43eed00 (MD5) Previous issue date: 2016-05en
dc.description.sponsorshipThe Biotechnology and Biological Sciences Research Council, Unilever Discover and the Economic and Social Research Councilen
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0022399916300691en
dc.rightsArchived with thanks to Journal of Psychosomatic Researchen
dc.subjectsleepen
dc.subjectmeasurementen
dc.subjectcortisolen
dc.subjectblood pressureen
dc.subjectpsychological wellbeingen
dc.titleBiological and psychological correlates of self-reported and objective sleep measuresen
dc.typeArticleen
dc.contributor.departmentUniversity of Roehampton; University College London; University of East London; University College Londonen
dc.identifier.journalJournal of Psychosomatic Researchen
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