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Stafford A, Oduola S, Reeve S. Sleep and socio-occupational functioning in adults with serious mental illness: A systematic review. Psychiatry Res 2024; 339:116111. [PMID: 39083962 DOI: 10.1016/j.psychres.2024.116111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 07/24/2024] [Accepted: 07/26/2024] [Indexed: 08/02/2024]
Abstract
Sleep is a crucial factor influencing mental health and quality of life. Individuals with serious mental illness (SMI) often experience significant sleep problems. This can further exacerbate their symptoms and impact their socio-occupational functioning (SOF) (the extent to which a person is able to engage in 'self-care and activities of daily living, communication, interpersonal relations, instrumental living skills, and work'). Despite the well-established bidirectional relationship between sleep and mental health, the specific association between sleep and SOF in the context of SMI remains underexplored. A systematic review was conducted. Comprehensive searches in PubMed and PsycNet yielded 832 results. After applying inclusion criteria, 24 studies were included in the narrative synthesis. Study characteristics and key findings were extracted for analysis. Collectively, studies investigated sleep quality, satisfaction, duration, disturbance, specific disorders, and objectively-recorded sleep parameters across various study designs. Studies included a total population of 10,938, utilising a range of sleep and SOF outcome measures. Nearly all studies indicated that worsened sleep was associated with reduced SOF in SMI populations. The review supports the potential role of improved sleep as a route to improved SOF in SMI populations. This has clear implications for research and clinical care for patients with SMI.
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Affiliation(s)
- Aviva Stafford
- Norwich Medical School, University of East Anglia, Norwich, United Kingdom; Cambridgeshire and Peterborough NHS Foundation Trust, United Kingdom.
| | - Sheri Oduola
- School of Health Sciences, University of East Anglia, Norwich, United Kingdom
| | - Sarah Reeve
- Norwich Medical School, University of East Anglia, Norwich, United Kingdom; Cambridgeshire and Peterborough NHS Foundation Trust, United Kingdom
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2
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Faulkner S, Didikoglu A, Byrne R, Drake R, Bee P. Light-Dark and Activity Rhythm Therapy (L-DART) to Improve Sleep in People with Schizophrenia Spectrum Disorders: A Single-Group Mixed Methods Study of Feasibility, Acceptability and Adherence. Clocks Sleep 2023; 5:734-754. [PMID: 38131747 PMCID: PMC10742153 DOI: 10.3390/clockssleep5040048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/07/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023] Open
Abstract
People with a diagnosis of schizophrenia often have poor sleep, even when their psychotic symptoms are relatively well managed. This includes insomnia, sleep apnoea, hypersomnia, and irregular or non-24 h sleep-wake timing. Improving sleep would better support recovery, yet few evidence-based sleep treatments are offered to this group. This paper presents a mixed methods feasibility and acceptability study of Light-Dark and Activity Rhythm Therapy (L-DART). L-DART is delivered by an occupational therapist over 12 weeks. It is highly personalisable to sleep phenotypes and circumstances. Ten participants with schizophrenia spectrum diagnoses and sleep problems received L-DART; their sleep problems and therapy goals were diverse. We measured recruitment, attrition, session attendance, and adverse effects, and qualitatively explored acceptability, engagement, component delivery, adherence, activity patterns, dynamic light exposure, self-reported sleep, wellbeing, and functioning. Recruitment was ahead of target, there was no attrition, and all participants received the minimum 'dose' of sessions. Acceptability assessed via qualitative reports and satisfaction ratings was good. Adherence to individual intervention components varied, despite high participant motivation. All made some potentially helpful behaviour changes. Positive sleep and functioning outcomes were reported qualitatively as well as in outcome measures. The findings above support testing the intervention in a larger randomised trial ISRCTN11998005.
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Affiliation(s)
- Sophie Faulkner
- School of Health Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester M13 9PL, UK;
- Centre for Biological Timing, Division of Neuroscience, School of Biological Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester M13 9PL, UK;
- Greater Manchester Mental Health NHS Foundation Trust, Bury New Road, Prestwich M25 3BL, UK (P.B.)
| | - Altug Didikoglu
- Centre for Biological Timing, Division of Neuroscience, School of Biological Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester M13 9PL, UK;
- Department of Neuroscience, Izmir Institute of Technology, Gulbahce, Urla, Izmir 35430, Turkey
| | - Rory Byrne
- Greater Manchester Mental Health NHS Foundation Trust, Bury New Road, Prestwich M25 3BL, UK (P.B.)
| | - Richard Drake
- School of Health Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester M13 9PL, UK;
- Greater Manchester Mental Health NHS Foundation Trust, Bury New Road, Prestwich M25 3BL, UK (P.B.)
| | - Penny Bee
- Greater Manchester Mental Health NHS Foundation Trust, Bury New Road, Prestwich M25 3BL, UK (P.B.)
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3
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Faulkner SM, Drake RJ, Eisner E, Bee PE. Sleep problems and referral intentions in mental health services: service user self-report and staff proxy report surveys. BMC Psychiatry 2023; 23:583. [PMID: 37563709 PMCID: PMC10413589 DOI: 10.1186/s12888-023-04817-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 04/24/2023] [Indexed: 08/12/2023] Open
Abstract
BACKGROUND Sleep problems are common in mental health service users, but few non-pharmacological therapies are offered. Therapies are being developed and tested, but there may be barriers to these therapies reaching those who need them. METHODS Light-Dark and Activity Rhythm Therapy (L-DART), is a new sleep therapy delivered by an occupational therapist, which has been feasibility tested in people with schizophrenia spectrum diagnoses. This paper presents two surveys, conducted with mental health staff and service users, on sleep problems, treatment wishes; and barriers and facilitators to uptake of L-DART or similar therapies. Descriptive statistics, single-level and multi-level ordinal logistic regression were used to examine factors associated with sleep problems and referral intentions. FINDINGS Sleep problems were commonly identified by staff and service users, there was demand for non-pharmacological intervention across diagnostic and demographic categories, but staff readiness to refer differed according to NHS Trust and service user diagnosis. Staff and service user reports differed in awareness of sleep disordered breathing and parasomnias, and wish for referral. Staff were more confident identifying sleep problems than addressing them, but more training was associated with greater confidence concerning both assessment and treatment. CONCLUSIONS A range of sleep problems are prevalent and recognised in mental health service users, and there is an unmet need for non-pharmacological sleep interventions. Improving suitable resources to support self-management in this group may help; Staff and service users also reported a high readiness to refer or be referred for sleep interventions. Staff training to improve identification of sleep problems, and differentiation between types of sleep problems, would support access to the most appropriate treatments.
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Affiliation(s)
- Sophie M. Faulkner
- Faculty of Biology, Medicine and Health, The University of Manchester, Oxford Rd, Manchester, M13 9PL UK
- Greater Manchester Mental Health NHS Foundation Trust, Bury New Rd, Prestwich, Manchester, M25 3BL UK
| | - Richard J. Drake
- Faculty of Biology, Medicine and Health, The University of Manchester, Oxford Rd, Manchester, M13 9PL UK
- Greater Manchester Mental Health NHS Foundation Trust, Bury New Rd, Prestwich, Manchester, M25 3BL UK
| | - Emily Eisner
- Faculty of Biology, Medicine and Health, The University of Manchester, Oxford Rd, Manchester, M13 9PL UK
- Greater Manchester Mental Health NHS Foundation Trust, Bury New Rd, Prestwich, Manchester, M25 3BL UK
| | - Penny E. Bee
- Faculty of Biology, Medicine and Health, The University of Manchester, Oxford Rd, Manchester, M13 9PL UK
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4
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Formica MJC, Fuller-Tyszkiewicz M, Hickie I, Olive L, Wood SJ, Purcell R, Yung AR, Phillips LJ, Nelson B, Pantelis C, McGorry PD, Hartmann JA. The relationship between subjective sleep disturbance and attenuated psychotic symptoms after accounting for anxiety and depressive symptoms. Schizophr Res 2023; 258:84-93. [PMID: 37536174 DOI: 10.1016/j.schres.2023.07.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 05/10/2023] [Accepted: 07/23/2023] [Indexed: 08/05/2023]
Abstract
BACKGROUND AND HYPOTHESES Sleep disturbances are increasingly recognized as cooccurring with psychotic symptoms. The potential importance of this relationship is complicated when considering the effects of anxiety and depressive symptoms which commonly present in early-stage illness states. This study aimed to investigate the relationship between self-reported sleep disturbance on the development of attenuated psychotic symptoms (APS) cross-sectionally and longitudinally while adjusting for roles of anxiety and depressive symptoms. DESIGN Eight-hundred and two help-seeking young people aged 12 to 25 years who engaged with our Australian early intervention services were included in the study (the "Transitions" cohort). Cross sectional mediation and cross-lagged longitudinal (12-month) mediation models were developed with outcomes being different APS domains. RESULTS Only baseline excessive daytime sleepiness predicted later APS when accounting for previous APS, anxiety and depressive symptomatology. Cross sectionally, self-reported sleep disturbance showed both direct and indirect predictive relationships with all APS domains. Partial mediation through anxiety and depression was shown for unusual thought content, perceptual abnormalities, and disorganised speech, while full mediation through depression was shown for non-bizarre ideas. CONCLUSIONS The specificity of the relationship between self-reported sleep disturbance on APS highlights the potential for different roles in mechanistic models of psychotic symptom expression. This further indicates the need for further experimental research to illuminate potential causal pathways. Future research should continue to use continuous, symptom level approaches across a range of timeframes to more accurately model the complex dynamics present in the sleep-psychosis relationship.
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Affiliation(s)
- M J C Formica
- Orygen, Parkville, Australia; Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia; School of Psychology, Deakin University, Burwood, Australia.
| | | | - I Hickie
- Brain and Mind Centre, University of Sydney, Camperdown, Australia
| | - L Olive
- Orygen, Parkville, Australia; Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia; School of Psychology, Deakin University, Burwood, Australia
| | - S J Wood
- Orygen, Parkville, Australia; Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia; School of Psychology, University of Birmingham, Birmingham, England
| | - R Purcell
- Orygen, Parkville, Australia; Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia
| | - A R Yung
- Orygen, Parkville, Australia; Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia; School of Medicine, Deakin University, Burwood, Australia
| | - L J Phillips
- School of Psychological Sciences, The University of Melbourne, Parkville, Australia
| | - B Nelson
- Orygen, Parkville, Australia; Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia
| | - C Pantelis
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne, Parkville, Australia
| | - P D McGorry
- Orygen, Parkville, Australia; Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia
| | - J A Hartmann
- Orygen, Parkville, Australia; Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia; Department of Public Mental Health, Central Institute of Mental Health, Heidelberg Univeristy, Mannheim, Germany
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5
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Cederlöf E, Holm M, Ahti J, Lähteenvuo M, Hietala J, Häkkinen K, Isometsä E, Kampman O, Lahdensuo K, Lönnqvist J, Suvisaari J, Tiihonen J, Wegelius A, Veijola J, Palotie A, Kieseppä T, Niemelä S, Paunio T. Substance Use and Sleep Problems in Patients With Psychotic Disorders. SCHIZOPHRENIA BULLETIN OPEN 2023; 4:sgac073. [PMID: 39145344 PMCID: PMC11207820 DOI: 10.1093/schizbullopen/sgac073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
Background Substance use and sleep problems are common in patients with psychotic disorders, but their associations in these patients have not been evaluated. We aimed to investigate associations between substance use and sleep problems in a large nationwide cohort of patients with a psychotic disorder. Study Design This study is part of the Finnish SUPER study, which belongs to the Stanley Global Neuropsychiatric Genomics Initiative. In this cross-sectional, multicenter study, participants (N = 8616) were recruited from primary and specialized healthcare. Patients with schizophrenia, schizoaffective disorder, bipolar disorder, and psychotic depression were included. Information on current alcohol (Alcohol Use Disorders Identification Test-Concise) and cigarette use as well as on lifetime illicit drug use, including cannabis, benzodiazepines, amphetamines, and opioids, was collected using questionnaires. The sleep outcomes in our logistic regression analysis were short (≤6 h) and long sleep (≥10 h) duration, difficulties initiating asleep, early morning awakenings, fatigue, and poor sleep quality (SQ). Results Self-reported substance use was associated with a higher prevalence of sleep problems. After adjustments with age, gender, diagnostic group, and living status, hazardous alcohol use (eg, poor SQ odds ratio [OR] = 1.80, 95% CI: 1.49 to 2.16, P < .001), current smoking (short sleep duration OR = 1.28, 95% CI: 1.08 to 1.52, P = .005), and lifetime benzodiazepine misuse (difficulties initiating sleep OR = 2.00, 95% CI: 1.55 to 2.48, P < .001) were associated with sleep problems. Conclusions Substance use was associated with sleep problems. Our findings underline the potential benefits of screening substance use when treating sleep problems in patients with psychotic disorders.
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Affiliation(s)
- Erik Cederlöf
- Finnish Institute for Health and Welfare, Helsinki, Finland
- Department of Psychiatry, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- SleepWell Research Program, Faculty of Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Minna Holm
- Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Johan Ahti
- Department of Psychiatry, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | | | | | - Katja Häkkinen
- Institute for Molecular Medicine Finland (FIMM), Helsinki, Finland
| | - Erkki Isometsä
- Department of Psychiatry, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Olli Kampman
- Faculty of Medicine and Health Technology, University of Tampere, Tampere, Finland
- Department of Psychiatry, University of Tampere, Tampere, Finland
| | - Kaisla Lahdensuo
- Department of Psychiatry, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | | | | | - Jari Tiihonen
- Niuvanniemi Hospital, University of Eastern, Kuopio,
Finland
- Karolinska Institutet, Solna, Sweden
| | - Asko Wegelius
- Department of Psychiatry, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Juha Veijola
- Department of Psychiatry, Oulu University Hospital, Oulu, Finland
- Department of Psychiatry, Research Unit of Clinical Neuroscience, University of Oulu, Oulu, Finland
- Medical Research Center, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Aarno Palotie
- Institute for Molecular Medicine Finland (FIMM), Helsinki, Finland
| | - Tuula Kieseppä
- Finnish Institute for Health and Welfare, Helsinki, Finland
- Department of Psychiatry, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | | | - Tiina Paunio
- Finnish Institute for Health and Welfare, Helsinki, Finland
- Department of Psychiatry, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- SleepWell Research Program, Faculty of Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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6
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Juda M, Pater J, Mistlberger RE, Schütz CG. Sleep and Rest-Activity Rhythms in Recovering Patients with Severe Concurrent Mental and Substance Use Disorder: A Pilot Study. J Dual Diagn 2023; 19:26-39. [PMID: 36580397 DOI: 10.1080/15504263.2022.2157694] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Objective: Mental health and substance use disorders are commonly associated with disrupted sleep and circadian rest-activity rhythms. How these disorders in combination relate to sleep and circadian organization is not well studied. We provide here the first quantitative assessment of sleep and rest-activity rhythms in inpatients with complex concurrent disorders, taking into account categories of substance use (stimulant vs. stimulant and opioid use) and psychiatric diagnosis (psychotic disorder and mood disorder). We also explore how sleep and rest-activity rhythms relate to psychiatric functioning. Methods: A total of 44 participants (10 female) between the age of 20-60 years (median = 29 years) wore wrist accelerometers over 5-70 days and completed standardized questionnaires assessing chronotype and psychiatric functioning (fatigue, psychiatric symptom severity, and impulsiveness). To examine potential influences from treatment, we computed (1) length of stay; (2) days of abstinence from stimulants and opioids as a measure of withdrawal; and (3) a sedative load based on prescribed medications. Results: Participants exhibited a sustained excessive sleep duration, frequent nighttime awakenings, and advanced rest-activity phase related to sedative load. Sleep disruptions were elevated in participants with a history of opioid use. Patients with a psychotic disorder showed the longest sleep and most fragmented and irregular rest-activity patterns. Non-parametric circadian rhythm analysis revealed a high rhythm amplitude by comparison with population norms, and this was associated with greater psychiatric symptom severity. Psychiatric symptom severity was also associated with greater fatigue and later MCTQ chronotype. Conclusions: This pilot study provides initial information on the prevalence and severity of sleep and circadian rhythm disturbances in individuals with severe concurrent disorders. The results underline the need for further studies to start to understand the role of sleep in the disease and recovery process in this understudied population.
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Affiliation(s)
- Myriam Juda
- Sleep and Circadian Neuroscience Laboratory, Department of Psychology, Simon Fraser University, Burnaby, Canada.,Behavioral Reward Affect + Impulsivity Neuroscience (BRAIN) Lab, Department of Psychiatry, Institute of Mental Health, University of British Columbia, Vancouver, Canada.,Telfer School of Management, University of Ottawa, Ottawa, Canada
| | - Joanna Pater
- Sleep and Circadian Neuroscience Laboratory, Department of Psychology, Simon Fraser University, Burnaby, Canada.,Behavioral Reward Affect + Impulsivity Neuroscience (BRAIN) Lab, Department of Psychiatry, Institute of Mental Health, University of British Columbia, Vancouver, Canada.,School of Medicine, St. George's University, St. George's, Grenada
| | - Ralph E Mistlberger
- Sleep and Circadian Neuroscience Laboratory, Department of Psychology, Simon Fraser University, Burnaby, Canada
| | - Christian G Schütz
- Behavioral Reward Affect + Impulsivity Neuroscience (BRAIN) Lab, Department of Psychiatry, Institute of Mental Health, University of British Columbia, Vancouver, Canada.,Provincial Health Services Authority, Red Fish Healing Centre for Mental Health and Addiction, Coquitlam, Canada
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7
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Cederlöf E, Holm M, Lähteenvuo M, Haaki W, Hietala J, Häkkinen K, Isometsä E, Jukuri T, Kajanne R, Kampman O, Kieseppä T, Lahdensuo K, Lönnqvist J, Männynsalo T, Niemi-Pynttäri J, Suokas K, Suvisaari J, Tiihonen J, Turunen H, Wegelius A, Veijola J, Palotie A, Paunio T. Sleep in Psychotic Disorders: Results From Nationwide SUPER Finland Study. SCHIZOPHRENIA BULLETIN OPEN 2022; 3:sgac011. [PMID: 39144769 PMCID: PMC11206061 DOI: 10.1093/schizbullopen/sgac011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
Objective Characterizing sleep in patients with schizophrenia, schizoaffective disorder, bipolar disorder, and psychotic depression. Methods This cross-sectional questionnaire study is based on the SUPER study sample, which is part of the Stanley Global Neuropsychiatric Genomics Initiative. The study is a multicentre, nationwide Finnish study consisting of patients (N = 8 623) both in primary and specialized health care. The main measurements were sleep duration, difficulties initiating sleep, early morning awakenings, and fatigue. These results were compared with a nationally representative sample of the Finnish population from the Health 2000 survey (N = 7 167) with frequency and logistic regression analyses. Results Patients had more sleep problems compared with the general population, especially young and middle-aged patients (Difficulties initiating sleep in young patients odds ratio = 12.3, 95% CI 9.8-15.4). Long sleep duration was the most deviating property of the sleep characteristics, being particularly common among young patients with schizophrenia (odds ratio = 27.9, 95% CI 22.1-35.2, 47.4% vs 3.3% prevalence). All sleep problems were associated with worse subjective health. We also conducted a latent class analysis, resulting in a cluster relatively free of sleep problems (58% of patients), an insomnia symptom cluster (26%), and a hypersomnia symptom cluster (15%). Conclusions In our sample, patients with psychotic disorders have more sleep problems-especially long sleep duration but also insomnia symptoms-compared with the general population. The patients can in a latent class analysis of their sleep symptoms be divided into groups with differing sleep profiles.
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Affiliation(s)
- Erik Cederlöf
- Population Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
- Department of Psychiatry, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- SleepWell Research Program, Faculty of Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Minna Holm
- Population Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Markku Lähteenvuo
- Institute for Molecular Medicine Finland (FIMM), Helsinki, Finland
- Niuvanniemi Hospital, University of Eastern Finland, Finland
| | - Willehard Haaki
- Department of Psychiatry, University of Turku, Turku, Finland
| | - Jarmo Hietala
- Department of Psychiatry, University of Turku, Turku, Finland
| | - Katja Häkkinen
- Institute for Molecular Medicine Finland (FIMM), Helsinki, Finland
| | - Erkki Isometsä
- Department of Psychiatry, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Tuomas Jukuri
- Department of Psychiatry, Oulu University Hospital, Oulu, Finland
| | - Risto Kajanne
- Institute for Molecular Medicine Finland (FIMM), Helsinki, Finland
| | - Olli Kampman
- Faculty of Medicine and Health Technology, University of Tampere, Tampere, Finland
- Department of Psychiatry, University of Tampere, Tampere, Finland
| | - Tuula Kieseppä
- Department of Psychiatry, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Kaisla Lahdensuo
- Department of Psychiatry, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Jouko Lönnqvist
- Population Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Teemu Männynsalo
- Social Services and Health Care Sector; City of Helsinki, Helsinki, Finland
| | | | - Kimmo Suokas
- Faculty of Medicine and Health Technology, University of Tampere, Tampere, Finland
- Social Services and Health Care Sector; City of Helsinki, Helsinki, Finland
| | - Jaana Suvisaari
- Population Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Jari Tiihonen
- Niuvanniemi Hospital, University of Eastern Finland, Finland
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
- Center for Psychiatry Research, Stockholm City Council, Stockholm, Sweden
| | - Hannu Turunen
- Population Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Asko Wegelius
- Department of Psychiatry, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Juha Veijola
- Department of Psychiatry, Oulu University Hospital, Oulu, Finland
- Department of Psychiatry, Research Unit of Clinical Neuroscience, University of Oulu, Oulu, Finland
- Medical Research Center, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Aarno Palotie
- Institute for Molecular Medicine Finland (FIMM), Helsinki, Finland
| | - Tiina Paunio
- Population Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
- Department of Psychiatry, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- SleepWell Research Program, Faculty of Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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8
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The Impact of Sleep on Neurocognition and Functioning in Schizophrenia—Is It Time to Wake-Up? JOURNAL OF PSYCHIATRY AND BRAIN SCIENCE 2022; 7. [PMID: 35224206 PMCID: PMC8880843 DOI: 10.20900/jpbs.20220001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
People with schizophrenia (SZ) display substantial neurocognitive deficits that have been implicated as major contributors to poor daily functioning and disability. Previous reports have identified a number of predictors of poor neurocognition in SZ including demographics, symptoms, and treatment adherence, as well as body mass index, aerobic fitness, and exercise activity. However, the putative impact of sleep has received relatively limited consideration, despite sleep disturbances, which are pervasive in this population, resulting in symptoms that are strikingly similar to the neurocognitive deficits commonly observed in SZ. Here we argue for the consideration of the impact of sleep on neurocognition in people with SZ and propose recommendations for future research to elucidate the links between sleep parameters, neurocognition and daily functioning.
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9
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Skeldon AC, Dijk DJ, Meyer N, Wulff K. Extracting Circadian and Sleep Parameters from Longitudinal Data in Schizophrenia for the Design of Pragmatic Light Interventions. Schizophr Bull 2021; 48:447-456. [PMID: 34757401 PMCID: PMC8886588 DOI: 10.1093/schbul/sbab124] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Sleep and circadian rhythm dysfunction is prevalent in schizophrenia, is associated with distress and poorer clinical status, yet remains an under-recognized therapeutic target. The development of new therapies requires the identification of the primary drivers of these abnormalities. Understanding of the regulation of sleep-wake timing is now sufficiently advanced for mathematical model-based analyses to identify the relative contribution of endogenous circadian processes, behavioral or environmental influences on sleep-wake disturbance and guide the development of personalized treatments. Here, we have elucidated factors underlying disturbed sleep-wake timing by applying a predictive mathematical model for the interaction of light and the circadian and homeostatic regulation of sleep to actigraphy, light, and melatonin profiles from 20 schizophrenia patients and 21 age-matched healthy unemployed controls, and designed interventions which restored sleep-circadian function. Compared to controls, those with schizophrenia slept longer, had more variable sleep timing, and received significantly fewer hours of bright light (light > 500 lux), which was associated with greater variance in sleep timing. Combining the model with the objective data revealed that non 24-h sleep could be best explained by reduced light exposure rather than differences in intrinsic circadian period. Modeling implied that late sleep offset and non 24-h sleep timing in schizophrenia can be normalized by changes in environmental light-dark profiles, without imposing major lifestyle changes. Aberrant timing and intensity of light exposure patterns are likely causal factors in sleep timing disturbances in schizophrenia. Implementing our new model-data framework in clinical practice could deliver personalized and acceptable light-dark interventions that normalize sleep-wake timing.
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Affiliation(s)
- Anne C Skeldon
- Department of Mathematics, Faculty of Engineering and Physical Sciences, University of Surrey, GuildfordUK,UK Dementia Research Institute Care Research & Technology Centre, at Imperial College London and the University of Surrey, Guildford,UK,To whom correspondence should be addressed; Department of Mathematics, University of Surrey, Guildford, GU2 7XH, UK; tel +44 1483 688761, e-mail:
| | - Derk-Jan Dijk
- UK Dementia Research Institute Care Research & Technology Centre, at Imperial College London and the University of Surrey, Guildford,UK,Surrey Sleep Research Centre, Faculty of Health and Medical Sciences, University of Surrey, Guildford,UK
| | - Nicholas Meyer
- Department of Psychosis Studies, Institute of Psychology, Psychiatry and Neuroscience, King’s College London, >London, UK,Insomnia and Behavioural Sleep Medicine Clinic, University College London Hospitals NHS Foundation Trust, London, UK
| | - Katharina Wulff
- Departments of Radiation Sciences and Molecular Biology, Umea University, Umea, Sweden,Wallenberg Centre for Molecular Medicine (WCMM), Umea University, Umea, Sweden
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