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postgraduate thesis: Sleep disturbances and psychotic experiences along the continuum : the correlates and potential mediators
Title | Sleep disturbances and psychotic experiences along the continuum : the correlates and potential mediators |
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Authors | |
Issue Date | 2018 |
Publisher | The University of Hong Kong (Pokfulam, Hong Kong) |
Citation | Rong, R. [荣蓉]. (2018). Sleep disturbances and psychotic experiences along the continuum : the correlates and potential mediators. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. |
Abstract | Sleep disturbances are distressing complaints commonly reported in
individuals with psychotic disorders. Whilst increasing evidence suggests the
continuum of psychosis, there has been a paucity of data examining poor sleep
quality and specific sleep disturbances in relation to dimensional psychotic
experiences and quality of life across the continuum of psychosis. The
objectives of this dissertation were to investigate the correlates of sleep
problems along the psychosis continuum and to explore the psychological
factors mediating the associations between sleep problems and dimensional
psychotic experiences. This dissertation consisted of two cross-sectional studies.
In Study 1, 76 outpatients with schizophrenia spectrum disorders were recruited
from a regional hospital in Hong Kong. Sleep disturbances, dimensional
psychotic experiences, health-related quality of life and global functioning were
assessed with self-reported questionnaires. The findings of Study 1 indicated
that poor sleepers had a significantly higher degree of paranoia, hallucination
and cognitive disorganization. They were also more likely to report poorer
quality of life. The association between poor sleep quality and decreased quality
of life remained significant after controlling for potential demographic and
clinical confounders. In Study 2, 878 healthy young adults were recruited from
two universities in Hong Kong. Participants completed the online questionnaires
measuring sleep disturbances, dimensional psychotic experiences, cognitive
bias, negative affect and quality of life. The findings of Study 2 suggested that
individuals with sleep problems tended to report increased psychotic
experiences, cognitive bias, negative affect and decreased quality of life. The
associations between sleep quality and distinct psychotic experiences were found to be mediated by negative affect and cognitive bias. Taken together, the
present findings underscored the importance of timely assessing and addressing
sleep problems and the need of sleep-focused treatment both for the patients
with psychotic disorders and individuals with subclinical psychotic-like
experiences.
|
Degree | Master of Social Sciences |
Subject | Sleep - Psychological aspects Psychoses |
Dept/Program | Clinical Psychology |
Persistent Identifier | http://hdl.handle.net/10722/278490 |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Rong, Rong | - |
dc.contributor.author | 荣蓉 | - |
dc.date.accessioned | 2019-10-10T03:41:55Z | - |
dc.date.available | 2019-10-10T03:41:55Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | Rong, R. [荣蓉]. (2018). Sleep disturbances and psychotic experiences along the continuum : the correlates and potential mediators. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. | - |
dc.identifier.uri | http://hdl.handle.net/10722/278490 | - |
dc.description.abstract | Sleep disturbances are distressing complaints commonly reported in individuals with psychotic disorders. Whilst increasing evidence suggests the continuum of psychosis, there has been a paucity of data examining poor sleep quality and specific sleep disturbances in relation to dimensional psychotic experiences and quality of life across the continuum of psychosis. The objectives of this dissertation were to investigate the correlates of sleep problems along the psychosis continuum and to explore the psychological factors mediating the associations between sleep problems and dimensional psychotic experiences. This dissertation consisted of two cross-sectional studies. In Study 1, 76 outpatients with schizophrenia spectrum disorders were recruited from a regional hospital in Hong Kong. Sleep disturbances, dimensional psychotic experiences, health-related quality of life and global functioning were assessed with self-reported questionnaires. The findings of Study 1 indicated that poor sleepers had a significantly higher degree of paranoia, hallucination and cognitive disorganization. They were also more likely to report poorer quality of life. The association between poor sleep quality and decreased quality of life remained significant after controlling for potential demographic and clinical confounders. In Study 2, 878 healthy young adults were recruited from two universities in Hong Kong. Participants completed the online questionnaires measuring sleep disturbances, dimensional psychotic experiences, cognitive bias, negative affect and quality of life. The findings of Study 2 suggested that individuals with sleep problems tended to report increased psychotic experiences, cognitive bias, negative affect and decreased quality of life. The associations between sleep quality and distinct psychotic experiences were found to be mediated by negative affect and cognitive bias. Taken together, the present findings underscored the importance of timely assessing and addressing sleep problems and the need of sleep-focused treatment both for the patients with psychotic disorders and individuals with subclinical psychotic-like experiences. | - |
dc.language | eng | - |
dc.publisher | The University of Hong Kong (Pokfulam, Hong Kong) | - |
dc.relation.ispartof | HKU Theses Online (HKUTO) | - |
dc.rights | The author retains all proprietary rights, (such as patent rights) and the right to use in future works. | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject.lcsh | Sleep - Psychological aspects | - |
dc.subject.lcsh | Psychoses | - |
dc.title | Sleep disturbances and psychotic experiences along the continuum : the correlates and potential mediators | - |
dc.type | PG_Thesis | - |
dc.description.thesisname | Master of Social Sciences | - |
dc.description.thesislevel | Master | - |
dc.description.thesisdiscipline | Clinical Psychology | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.5353/th_991044144986903414 | - |
dc.date.hkucongregation | 2018 | - |
dc.identifier.mmsid | 991044144986903414 | - |