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Perrault A, Kebets V, Kuek N, Cross N, Tesfaye R, Pomares F, Li J, Chee M, Dang-Vu TT, Yeo BTT. A multidimensional investigation of sleep and biopsychosocial profiles with associated neural signatures. Res Sq 2024:rs.3.rs-4078779. [PMID: 38659875 PMCID: PMC11042395 DOI: 10.21203/rs.3.rs-4078779/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Sleep is essential for optimal functioning and health. Interconnected to multiple biological, psychological and socio-environmental factors (i.e., biopsychosocial factors), the multidimensional nature of sleep is rarely capitalized on in research. Here, we deployed a data-driven approach to identify sleep-biopsychosocial profiles that linked self-reported sleep patterns to inter-individual variability in health, cognition, and lifestyle factors in 770 healthy young adults. We uncovered five profiles, including two profiles reflecting general psychopathology associated with either reports of general poor sleep or an absence of sleep complaints (i.e., sleep resilience) respectively. The three other profiles were driven by sedative-hypnotics-use and social satisfaction, sleep duration and cognitive performance, and sleep disturbance linked to cognition and mental health. Furthermore, identified sleep-biopsychosocial profiles displayed unique patterns of brain network organization. In particular, somatomotor network connectivity alterations were involved in the relationships between sleep and biopsychosocial factors. These profiles can potentially untangle the interplay between individuals' variability in sleep, health, cognition and lifestyle - equipping research and clinical settings to better support individual's well-being.
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Perrault AA, Kebets V, Kuek NMY, Cross NE, Tesfaye R, Pomares FB, Li J, Chee MW, Dang-Vu TT, Thomas Yeo B. A multidimensional investigation of sleep and biopsychosocialprofiles with associated neural signatures. bioRxiv 2024:2024.02.15.580583. [PMID: 38559143 PMCID: PMC10979931 DOI: 10.1101/2024.02.15.580583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Sleep is essential for optimal functioning and health. Interconnected to multiple biological, psychological and socio-environmental factors (i.e., biopsychosocial factors), the multidimensional nature of sleep is rarely capitalized on in research. Here, we deployed a data-driven approach to identify sleep-biopsychosocial profiles that linked self-reported sleep patterns to inter-individual variability in health, cognition, and lifestyle factors in 770 healthy young adults. We uncovered five profiles, including two profiles reflecting general psychopathology associated with either reports of general poor sleep or an absence of sleep complaints (i.e., sleep resilience) respectively. The three other profiles were driven by sedative-hypnotics-use and social satisfaction, sleep duration and cognitive performance, and sleep disturbance linked to cognition and mental health. Furthermore, identified sleep-biopsychosocial profiles displayed unique patterns of brain network organization. In particular, somatomotor network connectivity alterations were involved in the relationships between sleep and biopsychosocial factors. These profiles can potentially untangle the interplay between individuals' variability in sleep, health, cognition and lifestyle - equipping research and clinical settings to better support individual's well-being.
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Affiliation(s)
- Aurore A. Perrault
- Sleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology & Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada
- Centre de Recherche de l’Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l’Ile-de-Montréal, QC, Canada
- Sleep & Circadian Research Group, Woolcock Institute of Medical Research, Macquarie University, Sydney, NSW, Australia
| | - Valeria Kebets
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore
- Centre for Sleep and Cognition & Centre for Translational Magnetic Resonance Research, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- N.1 Institute for Health, National University of Singapore, Singapore
- McConnell Brain Imaging Centre (BIC), Montreal Neurological Institute (MNI), McGill University, Montreal, QC, Canada
- McGill University, Montreal, QC, Canada
| | - Nicole M. Y. Kuek
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore
- Centre for Sleep and Cognition & Centre for Translational Magnetic Resonance Research, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- N.1 Institute for Health, National University of Singapore, Singapore
| | - Nathan E. Cross
- Sleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology & Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada
- Centre de Recherche de l’Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l’Ile-de-Montréal, QC, Canada
- School of Psychology, University of Sydney, NSW, Australia
| | | | - Florence B. Pomares
- Sleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology & Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada
- Centre de Recherche de l’Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l’Ile-de-Montréal, QC, Canada
| | - Jingwei Li
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore
- Centre for Sleep and Cognition & Centre for Translational Magnetic Resonance Research, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- N.1 Institute for Health, National University of Singapore, Singapore
- Institute of Neuroscience and Medicine (INM-7: Brain and Behavior), Research Center Jülich, Germany
- Institute of Systems Neuroscience, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Germany
| | - Michael W.L. Chee
- Centre for Sleep and Cognition & Centre for Translational Magnetic Resonance Research, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Thien Thanh Dang-Vu
- Sleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology & Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada
- Centre de Recherche de l’Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l’Ile-de-Montréal, QC, Canada
| | - B.T. Thomas Yeo
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore
- Centre for Sleep and Cognition & Centre for Translational Magnetic Resonance Research, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- N.1 Institute for Health, National University of Singapore, Singapore
- Department of Medicine, Human Potential Translational Research Programme & Institute for Digital Medicine (WisDM), Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Integrative Sciences and Engineering Programme (ISEP), National University of Singapore, Singapore
- Martinos Center for Biomedical Imaging, Massachussetts General Hospital, Charlestown, MA, USA
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Páez A, Frimpong E, Mograss M, Dang-Vu TT. The effectiveness of exercise interventions targeting sleep in older adults with cognitive impairment or Alzheimer's disease and related dementias (AD/ADRD): A systematic review and meta-analysis. J Sleep Res 2024:e14189. [PMID: 38462491 DOI: 10.1111/jsr.14189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/30/2024] [Accepted: 02/16/2024] [Indexed: 03/12/2024]
Abstract
Sleep loss is associated with reduced health and quality of life, and increased risk of Alzheimer's disease and related dementias. Up to 66% of persons with Alzheimer's disease and related dementias experience poor sleep, which can predict or accelerate the progression of cognitive decline. Exercise is a widely accessible intervention for poor sleep that can protect against functional and cognitive decline. No previous systematic reviews have investigated the effectiveness of exercise for sleep in older adults with mild cognitive impairment or Alzheimer's disease and related dementias. We systematically reviewed controlled interventional studies of exercise targeting subjectively or objectively (polysomnography/actigraphy) assessed sleep in persons with mild cognitive impairment or Alzheimer's disease and related dementias. We conducted searches in PubMed, Embase, Scopus and Cochrane-Library (n = 6745). Nineteen randomised and one non-randomised controlled interventional trials were included, representing the experiences of 3278 persons with mild cognitive impairment or Alzheimer's disease and related dementias. Ten had low-risk, nine moderate-risk, and one high-risk of bias. Six studies with subjective and eight with objective sleep outcomes were meta-analysed (random-effects model). We found moderate- to high-quality evidence for the beneficial effects of exercise on self-reported and objectively-measured sleep outcomes in persons with mild cognitive impairment or Alzheimer's disease and related dementias. However, no studies examined key potential moderators of these effects, such as sex, napping or medication use. Our results have important implications for clinical practice. Sleep may be one of the most important modifiable risk factors for a range of health conditions, including cognitive decline and the progression of Alzheimer's disease and related dementias. Given our findings, clinicians may consider adding exercise as an effective intervention or adjuvant strategy for improving sleep in older persons with mild cognitive impairment or Alzheimer's disease and related dementias.
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Affiliation(s)
- Arsenio Páez
- Sleep, Cognition and Neuroimaging Laboratory, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Quebec, Canada
- Nuffield Department for Primary Care Health Sciences, University of Oxford, Oxford, UK
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal (CRIUGM), Montreal, Quebec, Canada
| | - Emmanuel Frimpong
- Sleep, Cognition and Neuroimaging Laboratory, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Quebec, Canada
| | - Melodee Mograss
- Sleep, Cognition and Neuroimaging Laboratory, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Quebec, Canada
- Department of Psychology, Concordia University, Montreal, Quebec, Canada
| | - Thien Thanh Dang-Vu
- Sleep, Cognition and Neuroimaging Laboratory, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Quebec, Canada
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal (CRIUGM), Montreal, Quebec, Canada
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Turcotte S, Bouchard C, Rousseau J, DeBroux Leduc R, Bier N, Kairy D, Dang-Vu TT, Sarimanukoglu K, Dubé F, Bourgeois Racine C, Rioux C, Shea C, Filiatrault J. Factors influencing older adults' participation in telehealth interventions for primary prevention and health promotion: A rapid review. Australas J Ageing 2024; 43:11-30. [PMID: 38014903 DOI: 10.1111/ajag.13244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 11/29/2023]
Abstract
OBJECTIVE To identify facilitators and barriers to older adults' participation in telehealth interventions for primary prevention and health promotion. METHODS Relevant articles were searched using keywords in Embase and MEDLINE. Study characteristics, type of telehealth interventions and technology involved, as well as facilitators and barriers to their use, were extracted from selected articles. The Unified Theory of Acceptance and Use of Technology 2 (UTAUT2) model was used to organise data. RESULTS A total of 24 articles (pertaining to 20 studies) were included. Nine facilitators and 11 barriers influencing the participation in telehealth interventions for primary prevention and health promotion among older adults were identified. The most recurrent facilitators were related to the individual's performance expectancy and effort expectancy, as well as the presence of a social dimension associated with the intervention (i.e. having a good relationship with the other participants in the program). The two most prevalent barriers were also related to effort expectancy and performance expectancy, followed by barriers related to the inherent characteristics of the technology and older adults' health condition. Experience, age and gender were also found to moderate technology use and acceptance. CONCLUSIONS This rapid review highlights the importance of adopting a holistic perspective when designing telehealth interventions aimed at preventive and health promotion purposes among older adults.
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Affiliation(s)
- Samuel Turcotte
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
- Faculty of Medicine, School of Rehabilitation, Université de Montréal, Montreal, Quebec, Canada
| | - Camille Bouchard
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
| | - Jacqueline Rousseau
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
- Faculty of Medicine, School of Rehabilitation, Université de Montréal, Montreal, Quebec, Canada
| | - Roxane DeBroux Leduc
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
- Faculty of Medicine, School of Rehabilitation, Université de Montréal, Montreal, Quebec, Canada
| | - Nathalie Bier
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
- Faculty of Medicine, School of Rehabilitation, Université de Montréal, Montreal, Quebec, Canada
| | - Dahlia Kairy
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
- Faculty of Medicine, School of Rehabilitation, Université de Montréal, Montreal, Quebec, Canada
- Centre de recherche interdisciplinaire en réadaptation du Montréal métropolitain, CIUSSS Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
| | - Thien Thanh Dang-Vu
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
- Concordia University, Montréal, Québec, Canada
| | - Kami Sarimanukoglu
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
- Faculty of Medicine, School of Rehabilitation, Université de Montréal, Montreal, Quebec, Canada
| | - François Dubé
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
- Faculty of Medicine, School of Rehabilitation, Université de Montréal, Montreal, Quebec, Canada
| | - Chanaelle Bourgeois Racine
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
| | - Camille Rioux
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
| | - Carolann Shea
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
| | - Johanne Filiatrault
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
- Faculty of Medicine, School of Rehabilitation, Université de Montréal, Montreal, Quebec, Canada
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Maltezos A, Perrault AA, Walsh NA, Phillips EM, Gong K, Tarelli L, Smith D, Cross NE, Pomares FB, Gouin JP, Dang-Vu TT. Methodological approach to sleep state misperception in insomnia disorder: Comparison between multiple nights of actigraphy recordings and a single night of polysomnography recording. Sleep Med 2024; 115:21-29. [PMID: 38325157 DOI: 10.1016/j.sleep.2024.01.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 12/11/2023] [Accepted: 01/28/2024] [Indexed: 02/09/2024]
Abstract
STUDY OBJECTIVE To provide a comprehensive assessment of sleep state misperception in insomnia disorder (INS) and good sleepers (GS) by comparing recordings performed for one night in-lab (PSG and night review) and during several nights at-home (actigraphy and sleep diaries). METHODS Fifty-seven INS and 29 GS wore an actigraphy device and filled a sleep diary for two weeks at-home. They subsequently completed a PSG recording and filled a night review in-lab. Sleep perception index (subjective/objective × 100) of sleep onset latency (SOL), sleep duration (TST) and wake duration (TST) were computed and compared between methods and groups. RESULTS GS displayed a tendency to overestimate TST and WASO but correctly perceived SOL. The degree of misperception was similar across methods within the GS group. In contrast, INS underestimated their TST and overestimated their SOL both in-lab and at-home, yet the severity of misperception of SOL was larger at-home than in-lab. Finally, INS overestimated WASO only in-lab while correctly perceiving it at-home. While only the degree of TST misperception was stable across methods in INS, misperception of SOL and WASO were dependent on the method used. CONCLUSIONS We found that GS and INS exhibit opposite patterns and severity of sleep misperception. While the degree of misperception in GS was similar across methods, only sleep duration misperception was reliably detected by both in-lab and at-home methods in INS. Our results highlight that, when assessing sleep misperception in insomnia disorder, the environment and method of data collection should be carefully considered.
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Affiliation(s)
- Antonia Maltezos
- Sleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology & Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Ile-de-Montréal, QC, Canada; Department of Neuroscience, Université de Montreal, Montreal, QC, Canada
| | - Aurore A Perrault
- Sleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology & Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Ile-de-Montréal, QC, Canada.
| | - Nyissa A Walsh
- Sleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology & Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Ile-de-Montréal, QC, Canada; Department of Psychology & Centre for Clinical Research in Health, Concordia University, Montreal, QC, Canada
| | - Emma-Maria Phillips
- Sleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology & Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Ile-de-Montréal, QC, Canada; Department of Neuroscience, Université de Montreal, Montreal, QC, Canada
| | - Kirsten Gong
- Sleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology & Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Ile-de-Montréal, QC, Canada; Department of Psychology & Centre for Clinical Research in Health, Concordia University, Montreal, QC, Canada
| | - Lukia Tarelli
- Sleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology & Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Ile-de-Montréal, QC, Canada; Department of Psychology & Centre for Clinical Research in Health, Concordia University, Montreal, QC, Canada
| | - Dylan Smith
- Sleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology & Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada
| | - Nathan E Cross
- Sleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology & Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Ile-de-Montréal, QC, Canada
| | - Florence B Pomares
- Sleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology & Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Ile-de-Montréal, QC, Canada
| | - Jean-Philippe Gouin
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Ile-de-Montréal, QC, Canada; Department of Psychology & Centre for Clinical Research in Health, Concordia University, Montreal, QC, Canada
| | - Thien Thanh Dang-Vu
- Sleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology & Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Ile-de-Montréal, QC, Canada; Department of Neuroscience, Université de Montreal, Montreal, QC, Canada.
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6
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Mograss M, Frimpong E, Vilcourt F, Chouchou F, Zvionow T, Dang-Vu TT. The effects of acute exercise and a nap on heart rate variability and memory in young sedentary adults. Psychophysiology 2024; 61:e14454. [PMID: 37855092 DOI: 10.1111/psyp.14454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 08/29/2023] [Accepted: 09/20/2023] [Indexed: 10/20/2023]
Abstract
Recent evidence suggests that the autonomic nervous system can contribute to memory consolidation during sleep. Whether fluctuations in cardiac autonomic activity during sleep following physical exercise contribute to the process of memory consolidation has not been studied. We assessed the effects of a non-rapid eye movement (NREM) nap following acute exercise on cardiac autonomic regulation assessed with heart rate variability (HRV) to examine if HRV influences memory processes. Fifty-six (59% female) healthy young adults (23.14 ± 3.74 years) were randomly allocated to either the exercise plus nap (ExNap, n = 27) or nap alone (NoExNap, n = 29) groups. The ExNap group performed a 40-minute moderate-intensity cycling, while the NoExNap group was sedentary prior to learning 45 neutral pictures for a later test. Subsequently, participants underwent a 60-minute NREM nap while measuring EKG, followed by a visual recognition test. Our results indicated that heart rate did not significantly differ between the groups (p = .243), whereas vagally mediated HRV indices were lower in the ExNap group compared to the NoExNap group (p < .05). There were no significant differences in sleep variables between the groups (p > .05). Recognition accuracy was significantly higher in the ExNap group than in the NoExNap group (p = .027). In addition, the recognition accuracy of the ExNap group was negatively associated with vagally mediated HRV (p < .05). Pre-nap acute exercise appears to attenuate parasympathetic activity and to alter the relationship between memory and cardiac autonomic activity.
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Affiliation(s)
- Melodee Mograss
- Sleep, Cognition and Neuroimaging Laboratory, Concordia University, Montreal, Quebec, Canada
- Department of Health, Kinesiology & Applied Physiology, Concordia University, Montreal, Quebec, Canada
- Department of Psychology, Concordia University, Montreal, Quebec, Canada
- PERFORM Centre, Concordia University, Montreal, Quebec, Canada
| | - Emmanuel Frimpong
- Sleep, Cognition and Neuroimaging Laboratory, Concordia University, Montreal, Quebec, Canada
- Department of Health, Kinesiology & Applied Physiology, Concordia University, Montreal, Quebec, Canada
- PERFORM Centre, Concordia University, Montreal, Quebec, Canada
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada
| | - Franck Vilcourt
- IRISSE Laboratory (EA4075), UFR SHE, University of La Réunion, Le Tampon, France
| | - Florian Chouchou
- IRISSE Laboratory (EA4075), UFR SHE, University of La Réunion, Le Tampon, France
| | - Tehila Zvionow
- Sleep, Cognition and Neuroimaging Laboratory, Concordia University, Montreal, Quebec, Canada
- Department of Health, Kinesiology & Applied Physiology, Concordia University, Montreal, Quebec, Canada
| | - Thien Thanh Dang-Vu
- Sleep, Cognition and Neuroimaging Laboratory, Concordia University, Montreal, Quebec, Canada
- Department of Health, Kinesiology & Applied Physiology, Concordia University, Montreal, Quebec, Canada
- PERFORM Centre, Concordia University, Montreal, Quebec, Canada
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada
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7
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Weiner OM, O'Byrne J, Cross NE, Giraud J, Tarelli L, Yue V, Homer L, Walker K, Carbone R, Dang-Vu TT. Slow oscillation-spindle cross-frequency coupling predicts overnight declarative memory consolidation in older adults. Eur J Neurosci 2024; 59:662-685. [PMID: 37002805 DOI: 10.1111/ejn.15980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 03/06/2023] [Accepted: 03/24/2023] [Indexed: 04/04/2023]
Abstract
Cross-frequency coupling (CFC) between brain oscillations during non-rapid-eye-movement (NREM) sleep (e.g. slow oscillations [SO] and spindles) may be a neural mechanism of overnight memory consolidation. Declines in CFC across the lifespan might accompany coinciding memory problems with ageing. However, there are few reports of CFC changes during sleep after learning in older adults, controlling for baseline effects. Our objective was to examine NREM CFC in healthy older adults, with an emphasis on spindle activity and SOs from frontal electroencephalogram (EEG), during a learning night after a declarative learning task, as compared to a baseline night without learning. Twenty-five older adults (M [SD] age = 69.12 [5.53] years; 64% female) completed a two-night study, with a pre- and post-sleep word-pair associates task completed on the second night. SO-spindle coupling strength and a measure of coupling phase distance from the SO up-state were both examined for between-night differences and associations with memory consolidation. Coupling strength and phase distance from the up-state peak were both stable between nights. Change in coupling strength between nights was not associated with memory consolidation, but a shift in coupling phase towards (vs. away from) the up-state peak after learning predicted better memory consolidation. Also, an exploratory interaction model suggested that associations between coupling phase closer to the up-state peak and memory consolidation may be moderated by higher (vs. lower) coupling strength. This study supports a role for NREM CFC in sleep-related memory consolidation in older adults.
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Affiliation(s)
- Oren M Weiner
- PERFORM Centre and Center for Studies in Behavioural Neurobiology, Department of Psychology and Department of Health, Kinesiology, and Applied Physiology, Concordia University, Montréal, Quebec, Canada
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'île-de-Montréal, Montréal, Quebec, Canada
| | - Jordan O'Byrne
- PERFORM Centre and Center for Studies in Behavioural Neurobiology, Department of Psychology and Department of Health, Kinesiology, and Applied Physiology, Concordia University, Montréal, Quebec, Canada
- Department of Psychology, Université de Montréal, Montréal, Quebec, Canada
| | - Nathan E Cross
- PERFORM Centre and Center for Studies in Behavioural Neurobiology, Department of Psychology and Department of Health, Kinesiology, and Applied Physiology, Concordia University, Montréal, Quebec, Canada
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'île-de-Montréal, Montréal, Quebec, Canada
| | - Julia Giraud
- Department of Neurosciences, Université de Montréal, Montréal, Quebec, Canada
| | - Lukia Tarelli
- PERFORM Centre and Center for Studies in Behavioural Neurobiology, Department of Psychology and Department of Health, Kinesiology, and Applied Physiology, Concordia University, Montréal, Quebec, Canada
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'île-de-Montréal, Montréal, Quebec, Canada
| | - Victoria Yue
- PERFORM Centre and Center for Studies in Behavioural Neurobiology, Department of Psychology and Department of Health, Kinesiology, and Applied Physiology, Concordia University, Montréal, Quebec, Canada
| | - Léa Homer
- PERFORM Centre and Center for Studies in Behavioural Neurobiology, Department of Psychology and Department of Health, Kinesiology, and Applied Physiology, Concordia University, Montréal, Quebec, Canada
| | - Katherine Walker
- PERFORM Centre and Center for Studies in Behavioural Neurobiology, Department of Psychology and Department of Health, Kinesiology, and Applied Physiology, Concordia University, Montréal, Quebec, Canada
| | - Roxanne Carbone
- PERFORM Centre and Center for Studies in Behavioural Neurobiology, Department of Psychology and Department of Health, Kinesiology, and Applied Physiology, Concordia University, Montréal, Quebec, Canada
| | - Thien Thanh Dang-Vu
- PERFORM Centre and Center for Studies in Behavioural Neurobiology, Department of Psychology and Department of Health, Kinesiology, and Applied Physiology, Concordia University, Montréal, Quebec, Canada
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'île-de-Montréal, Montréal, Quebec, Canada
- Department of Neurosciences, Université de Montréal, Montréal, Quebec, Canada
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8
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Gool JK, Dang-Vu TT, van der Werf YD. White matter integrity in narcolepsy: the structural blueprint for functional complaints? Sleep 2024:zsae020. [PMID: 38263318 DOI: 10.1093/sleep/zsae020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Indexed: 01/25/2024] Open
Affiliation(s)
- Jari K Gool
- Anatomy&Neurosciences, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Stichting Epilepsie Instellingen Nederland (SEIN), Sleep-Wake Centre, Heemstede, Netherlands
- Department of Neurology, Leiden University Medical Centre, Leiden, The Netherlands
- Compulsivity, Impulsivity and Attention, Amsterdam Neuroscience, Amsterdam, The Netherlands
| | - Thien Thanh Dang-Vu
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, Centre intégré universitaire de santé et de services sociaux du Centre-Sud-de-l'Ile-de-Montréal, Montreal, QC, Canada
- Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, QC, Canada
| | - Ysbrand D van der Werf
- Anatomy&Neurosciences, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Compulsivity, Impulsivity and Attention, Amsterdam Neuroscience, Amsterdam, The Netherlands
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9
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Legault J, Thompson C, Moullec G, Baril AA, Martineau-Dussault MÈ, André C, Marchi NA, Cross N, Dang-Vu TT, Carrier J, Gosselin N. Age- and sex-specific associations between obstructive sleep apnea risk and cognitive decline in middle-aged and older adults: A 3-year longitudinal analysis of the Canadian longitudinal study on aging. Sleep Med 2023; 112:77-87. [PMID: 37832163 DOI: 10.1016/j.sleep.2023.09.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 09/18/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023]
Abstract
BACKGROUND Whether obstructive sleep apnea (OSA) increases the risk of cognitive decline and how sex and age influence this association is not clear. Here, we characterized the sex- and age-specific associations between OSA risk and 3-year cognitive change in middle-aged and older adults. METHODS We included 24,819 participants aged 45-85 (52% women) from the Canadian Longitudinal Study on Aging. OSA risk was measured at baseline using the STOP combined to body mass index (STOP-B). Neuropsychological tests assessed memory, executive functioning, and psychomotor speed at baseline and at 3-year follow-up. We conducted age- and sex-specific linear mixed models to estimate the predictive role of baseline STOP-B score on 3-year cognitive change. RESULTS Men at high-risk for OSA aged 45-59 years showed a steeper decline in psychomotor speed (+13.2 [95% CI: -1.6, 27.9]) compared to men at low-risk. Men at high-risk for OSA aged 60-69 showed a steeper decline in mental flexibility (-1.2 [-1.9, -0.5]) and processing speed (+0.6 [0.3, 0.9]) than those at low-risk. Women at high-risk for OSA aged 45-59 showed a steeper decline in processing speed (+0.1 [-0.2, 0.4]) than women at low-risk, while women at high-risk ≥70 years had a steeper decline in memory (-0.2 [-0.6, 0.1]) and processing speed (+1.0 [0.4, 1.5]). CONCLUSIONS Associations between OSA risk and cognitive decline over 3 years depend on age and sex. Being at high-risk for OSA is associated with a generalized cognitive decline in attention and processing speed, while a memory decline is specific to older women (≥70 years).
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Affiliation(s)
- Julie Legault
- Research Center, Centre intégré universitaire de santé et de services sociaux du Nord-de-l'Ile-de-Montréal, Montreal, QC, Canada; Department of Psychology, Université de Montréal, Montreal, QC, Canada
| | - Cynthia Thompson
- Research Center, Centre intégré universitaire de santé et de services sociaux du Nord-de-l'Ile-de-Montréal, Montreal, QC, Canada
| | - Gregory Moullec
- Research Center, Centre intégré universitaire de santé et de services sociaux du Nord-de-l'Ile-de-Montréal, Montreal, QC, Canada; École de santé publique, Département de médecine sociale et préventive, Université de Montréal, Montreal, QC, Canada
| | - Andrée-Ann Baril
- Douglas Mental Health University Institute, Department of Psychiatry, McGill University, Montreal, QC, Canada
| | - Marie-Ève Martineau-Dussault
- Research Center, Centre intégré universitaire de santé et de services sociaux du Nord-de-l'Ile-de-Montréal, Montreal, QC, Canada; Department of Psychology, Université de Montréal, Montreal, QC, Canada
| | - Claire André
- Research Center, Centre intégré universitaire de santé et de services sociaux du Nord-de-l'Ile-de-Montréal, Montreal, QC, Canada; Department of Psychology, Université de Montréal, Montreal, QC, Canada
| | - Nicola Andrea Marchi
- Research Center, Centre intégré universitaire de santé et de services sociaux du Nord-de-l'Ile-de-Montréal, Montreal, QC, Canada; Department of Psychology, Université de Montréal, Montreal, QC, Canada; Center for Investigation and Research in Sleep, Department of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland; Laboratory for Research in Neuroimaging, Department of Clinical Neurosciences, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Nathan Cross
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, Centre intégré universitaire de santé et de services sociaux du Centre-Sud-de-l'Ile-de-Montréal, Montreal, QC, Canada; Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, QC, Canada
| | - Thien Thanh Dang-Vu
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, Centre intégré universitaire de santé et de services sociaux du Centre-Sud-de-l'Ile-de-Montréal, Montreal, QC, Canada; Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, QC, Canada
| | - Julie Carrier
- Research Center, Centre intégré universitaire de santé et de services sociaux du Nord-de-l'Ile-de-Montréal, Montreal, QC, Canada; Department of Psychology, Université de Montréal, Montreal, QC, Canada
| | - Nadia Gosselin
- Research Center, Centre intégré universitaire de santé et de services sociaux du Nord-de-l'Ile-de-Montréal, Montreal, QC, Canada; Department of Psychology, Université de Montréal, Montreal, QC, Canada.
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10
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Gong K, Garneau J, Grenier S, Vasiliadis HM, Dang-Vu TT, Dialahy IZ, Gouin JP. Insomnia symptoms among older adults during the first year of the COVID-19 pandemic: A longitudinal study. Sleep Health 2023; 9:560-566. [PMID: 37380593 PMCID: PMC10292661 DOI: 10.1016/j.sleh.2023.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 03/22/2023] [Accepted: 04/28/2023] [Indexed: 06/30/2023]
Abstract
OBJECTIVE To identify sociodemographic, psychological, and health factors related to trajectories of insomnia symptoms in older adults during the COVID-19 pandemic. METHODS From May 2020 to May 2021, 644 older adults (mean age = 78.73, SD = 5.60) completed telephone-administered self-reported measures (ie, Insomnia Severity Index, consensus sleep diaries, UCLA Loneliness Scale, Kessler Psychological Distress Scale, Post-Traumatic Checklist, perceived health threat, and International Physical Activity Questionnaire) and provided sociodemographic data at 4 timepoints. Using the Insomnia Severity Index score at each timepoint, group-based trajectory modeling was conducted to identify groups with distinct insomnia trajectories. RESULTS On average, there was no significant change in insomnia symptoms over time. Three groups with distinct sleep trajectories were identified: clinical (11.8%), subthreshold (25.3%), and good sleepers (62.9%). Older adults who were younger, male, had elevated psychological distress and posttraumatic stress disorder symptoms, perceived more SARS-CoV-2 health threat, spent more time in bed, and had shorter sleep duration during the first wave of the pandemic were more likely to belong to the clinical than to the good sleepers group. Those who were younger, female, had elevated psychological distress and PTSD symptoms, greater loneliness, spent more time in bed, and had reduced sleep duration during the first wave were more likely to belong to the subthreshold than to the good sleepers group. CONCLUSIONS Over 1 in 3 older adults experienced persistent subthreshold or clinically significant insomnia symptoms. Both sleep-related behaviors as well as general and COVID-19-related psychological factors were associated with insomnia trajectories.
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Affiliation(s)
- Kirsten Gong
- Department of Psychology, Concordia University, Montreal, Canada; Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), CIUSSS Centre-Sud-de-l'île-de-Montréal, Montreal, Canada
| | - James Garneau
- Department of Psychology, Concordia University, Montreal, Canada; Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), CIUSSS Centre-Sud-de-l'île-de-Montréal, Montreal, Canada
| | - Sébastien Grenier
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), CIUSSS Centre-Sud-de-l'île-de-Montréal, Montreal, Canada; Department of Psychology, Université de Montréal, Montreal, Canada
| | | | - Thien Thanh Dang-Vu
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), CIUSSS Centre-Sud-de-l'île-de-Montréal, Montreal, Canada; Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Canada
| | - Isaora Zefania Dialahy
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), CIUSSS Centre-Sud-de-l'île-de-Montréal, Montreal, Canada
| | - Jean-Philippe Gouin
- Department of Psychology, Concordia University, Montreal, Canada; Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), CIUSSS Centre-Sud-de-l'île-de-Montréal, Montreal, Canada.
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11
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Frimpong E, Mograss M, Zvionow T, Paez A, Aubertin-Leheudre M, Bherer L, Pepin V, Robertson EM, Dang-Vu TT. Acute evening high-intensity interval training may attenuate the detrimental effects of sleep restriction on long-term declarative memory. Sleep 2023; 46:zsad119. [PMID: 37084788 PMCID: PMC10334486 DOI: 10.1093/sleep/zsad119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 04/05/2023] [Indexed: 04/23/2023] Open
Abstract
Recent evidence shows that a nap and acute exercise synergistically enhanced memory. Additionally, human-based cross-sectional studies and animal experiments suggest that physical exercise may mitigate the cognitive impairments of poor sleep quality and sleep restriction, respectively. We evaluated whether acute exercise may offset sleep restriction's impairment of long-term declarative memory compared to average sleep alone. A total of 92 (82% females) healthy young adults (24.6 ± 4.2 years) were randomly allocated to one of four evening groups: sleep restriction only (S5, 5-6 h/night), average sleep only (S8, 8-9 h/night), high-intensity interval training (HIIT) before restricted sleep (HIITS5), or HIIT before average sleep (HIITS8). Groups either followed a 15-min remote HIIT video or rest period in the evening (7:00 p.m.) prior to encoding 80 face-name pairs. Participants completed an immediate retrieval task in the evening. The next morning a delayed retrieval task was given after their subjectively documented sleep opportunities. Long-term declarative memory performance was assessed with the discriminability index (d') during the recall tasks. While our results showed that the d' of S8 (0.58 ± 1.37) was not significantly different from those of HIITS5 (-0.03 ± 1.64, p = 0.176) and HIITS8 (-0.20 ± 1.28, p = 0.092), there was a difference in d' compared to S5 (-0.35 ± 1.64, p = 0.038) at the delayed retrieval. These results suggest that the acute evening HIIT partially reduced the detrimental effects of sleep restriction on long-term declarative memory.
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Affiliation(s)
- Emmanuel Frimpong
- Sleep, Cognition and Neuroimaging Laboratory, Concordia University, Montreal, QC, Canada
- Department of Health, Kinesiology, and Applied Physiology, Concordia University, Montreal, QC, Canada
- PERFORM Center, Concordia University, Montreal, QC, Canada
- Centre de Recherche de l’Institut Universitaire de Gériatrie de Montréal, QC, Canada
| | - Melodee Mograss
- Sleep, Cognition and Neuroimaging Laboratory, Concordia University, Montreal, QC, Canada
- Department of Health, Kinesiology, and Applied Physiology, Concordia University, Montreal, QC, Canada
- PERFORM Center, Concordia University, Montreal, QC, Canada
- Department of Psychology, Concordia University, Montreal, QC, Canada
- Centre de Recherche de l’Institut Universitaire de Gériatrie de Montréal, QC, Canada
| | - Tehila Zvionow
- Sleep, Cognition and Neuroimaging Laboratory, Concordia University, Montreal, QC, Canada
- Department of Health, Kinesiology, and Applied Physiology, Concordia University, Montreal, QC, Canada
- PERFORM Center, Concordia University, Montreal, QC, Canada
| | - Arsenio Paez
- Sleep, Cognition and Neuroimaging Laboratory, Concordia University, Montreal, QC, Canada
- Department of Health, Kinesiology, and Applied Physiology, Concordia University, Montreal, QC, Canada
- PERFORM Center, Concordia University, Montreal, QC, Canada
| | - Mylene Aubertin-Leheudre
- Centre de Recherche de l’Institut Universitaire de Gériatrie de Montréal, QC, Canada
- Département des Sciences de l’activité physique, GRAPA, Université du Québec à Montréal, Montréal, QC, Canada
| | - Louis Bherer
- Centre de Recherche de l’Institut Universitaire de Gériatrie de Montréal, QC, Canada
- Department of Medicine and Centre de recherche de l’Institut de cardiologie de Montréal, Université de Montréal, QC, Canada
| | - Véronique Pepin
- Department of Health, Kinesiology, and Applied Physiology, Concordia University, Montreal, QC, Canada
- PERFORM Center, Concordia University, Montreal, QC, Canada
- Centre de recherche, CIUSSS du Nord-de l’Île-de-Montréal, Montréal, QC, Canada
| | - Edwin M Robertson
- School of Psychology and Neuroscience, University of Glasgow, Glasgow, UK
| | - Thien Thanh Dang-Vu
- Sleep, Cognition and Neuroimaging Laboratory, Concordia University, Montreal, QC, Canada
- Department of Health, Kinesiology, and Applied Physiology, Concordia University, Montreal, QC, Canada
- PERFORM Center, Concordia University, Montreal, QC, Canada
- Department of Psychology, Concordia University, Montreal, QC, Canada
- Centre de Recherche de l’Institut Universitaire de Gériatrie de Montréal, QC, Canada
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12
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Granet J, Peyrusqué E, Ruiz F, Buckinx F, Abdelkader LB, Dang-Vu TT, Sirois MJ, Gouin JP, Pageaux B, Aubertin-Leheudre M. Web-Based Physical Activity Interventions Are Feasible and Beneficial Solutions to Prevent Physical and Mental Health Declines in Community-Dwelling Older Adults During Isolation Periods. J Gerontol A Biol Sci Med Sci 2023; 78:535-544. [PMID: 35675174 PMCID: PMC9384240 DOI: 10.1093/gerona/glac127] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Periods of prolonged lockdown increase the risk of physical inactivity, which can contribute to physical decline among older adults. Online technology could be an innovative solution to promote physical activity (PA) habits in this context. The goal of this study was to examine and compare the acceptability, feasibility, and potential benefits of 2 modalities of web-based PA interventions in older adults during the coronavirus disease 2019 lockdown. METHODS Eighty-three nonphysically active community-dwelling older adults (aged 60 and older) were randomized to a 12-week web-based PA intervention delivered either in a live group (LG; n = 38) or a recorded group (RG; n = 45). Acceptability, feasibility as well as functional capacities, physical performance, quality of life, and PA level were assessed pre and postintervention. RESULTS There were fewer dropouts in the LG than RG (LG: 16% vs RG: 46%). However, adherence rate (LG: 89%; RG: 81%), level of satisfaction (LG: 77% vs RG: 64%), and enjoyment (LG: 68% vs RG: 62%) were similar across groups, even if the participants found the intervention slightly difficult (LG: 58% vs RG: 63%). Both groups significantly improved on functional capacities, physical performance, and quality of life. Only the LG showed significant improvements in perceived health and PA level. The LG showed greater improvements in physical performance and quality of life than the RG. CONCLUSION Web-based PA interventions are feasible, acceptable, and beneficial for improving functional capacities and physical performance during periods of lockdown. However, the interactive web and live modalities appear to be more effective for promoting some of these outcomes than recorded and individual modalities.
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Affiliation(s)
- Jordan Granet
- Département des sciences de l'activité physique, Faculté des sciences, Université du Québec à Montréal, Montréal, Canada.,Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montréal, Canada
| | - Eva Peyrusqué
- Département des sciences de l'activité physique, Faculté des sciences, Université du Québec à Montréal, Montréal, Canada.,Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montréal, Canada
| | - Fabien Ruiz
- Département des sciences de l'activité physique, Faculté des sciences, Université du Québec à Montréal, Montréal, Canada.,Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montréal, Canada
| | - Fanny Buckinx
- Département des sciences de l'activité physique, Faculté des sciences, Université du Québec à Montréal, Montréal, Canada.,Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montréal, Canada
| | - Lilia Ben Abdelkader
- Département des sciences de l'activité physique, Faculté des sciences, Université du Québec à Montréal, Montréal, Canada.,Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montréal, Canada
| | - Thien Thanh Dang-Vu
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montréal, Canada.,Department of Health, Kinesiology and Applied Physiology, PERFORM Center and Center for Studies in Behavioral Neurobiology, Concordia University, Montréal,Canada
| | | | - Jean-Philippe Gouin
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montréal, Canada.,Department of Psychology, Concordia University, Montréal, Canada
| | - Benjamin Pageaux
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montréal, Canada.,École de kinésiologie et des sciences de l'activité physique (EKSAP), Faculté de médecine, Université de Montréal, Montréal, Canada
| | - Mylène Aubertin-Leheudre
- Département des sciences de l'activité physique, Faculté des sciences, Université du Québec à Montréal, Montréal, Canada.,Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montréal, Canada
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13
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Granet J, Peyrusqué E, Ruiz F, Buckinx F, Abdelkader LB, Dang-Vu TT, Sirois MJ, Gouin JP, Pageaux B, Aubertin-Leheudre M. Online physical exercise intervention in older adults during lockdown: Can we improve the recipe? Aging Clin Exp Res 2023; 35:551-560. [PMID: 36635450 PMCID: PMC9838396 DOI: 10.1007/s40520-022-02329-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 12/16/2022] [Indexed: 01/14/2023]
Abstract
BACKGROUND Recorded and live online physical exercise (PE) interventions are known to provide health benefits. However, the effects of prioritizing the number of live or recorded sessions remain unclear. AIMS To explore which recorded-live sessions ratio leads to the best implementation and benefits in older adults. METHODS Forty-six community-dwelling adults (> 60y.o.) were randomized into two groups completing a 12-week online PE intervention. Each group had a different ratio of live-recorded online sessions as follows: Live-Recorded-Live sessions (LRL; n = 22) vs. Recorded-Live-Recorded sessions (RLR; n = 24). RESULTS Drop-out rates did not reach significance (LRL:14% vs. RLR: 29%, p = 0.20), and adherence was similar (> 85%) between groups. Both groups reported similar levels of satisfaction (> 70%), enjoyment (> 75%), and perceived exertion (> 60%). Both groups increased physical health and functional capacities, with greater improvements in muscle power (LRL: LRL: + 35 ± 16.1% vs. RLR: + 7 ± 13.9%; p = 0.010) and endurance (LRL: + 34.7 ± 15.4 vs. RLR: + 27.0 ± 26.5, p < 0.001) in the LRL group. DISCUSSION Both online PE intervention modalities were adapted to the participants' capacities and led to a high level of enjoyment and retention. The greater physical improvements observed in the LRL group are likely due to the higher presence of the instructor compared to the RLR group. Indeed, participants received likely more feedback to appropriately adjust postures and movements, increasing the quality of the exercises. CONCLUSION When creating online PE interventions containing both recorded and live sessions, priority should be given to maximizing the number of live sessions and not the number of recorded sessions.
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Affiliation(s)
- J Granet
- Départment des sciences de l'activité physique, Faculté des sciences, Université du Québec à Montréal (UQAM), Montréal, Québec, Canada
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montréal, Québec, Canada
| | - E Peyrusqué
- Départment des sciences de l'activité physique, Faculté des sciences, Université du Québec à Montréal (UQAM), Montréal, Québec, Canada
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montréal, Québec, Canada
| | - F Ruiz
- Départment des sciences de l'activité physique, Faculté des sciences, Université du Québec à Montréal (UQAM), Montréal, Québec, Canada
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montréal, Québec, Canada
| | - F Buckinx
- Départment des sciences de l'activité physique, Faculté des sciences, Université du Québec à Montréal (UQAM), Montréal, Québec, Canada
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montréal, Québec, Canada
| | - L Ben Abdelkader
- Départment des sciences de l'activité physique, Faculté des sciences, Université du Québec à Montréal (UQAM), Montréal, Québec, Canada
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montréal, Québec, Canada
| | - T T Dang-Vu
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montréal, Québec, Canada
- Department of Health, Kinesiology and Applied Physiology, PERFFORM Centre and Center for Studies in Behavioral Neurobiology, Concordia University, Montréal, Québec, Canada
| | - M J Sirois
- Department of Physiotherapy, Laval University, Québec city, Québec, Canada
| | - J P Gouin
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montréal, Québec, Canada
- Department of Psychology, Concordia University, Montréal, Québec, Canada
| | - B Pageaux
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montréal, Québec, Canada
- Faculté de médecine, École de kinésiologie et des sciences de l'activité physique (EKSAP), Université de Montréal, Montréal, Québec, Canada
| | - M Aubertin-Leheudre
- Départment des sciences de l'activité physique, Faculté des sciences, Université du Québec à Montréal (UQAM), Montréal, Québec, Canada.
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montréal, Québec, Canada.
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14
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Matovic S, Grenier S, Jauvin F, Gravel C, Vasiliadis HM, Vasil N, Belleville S, Rainville P, Dang-Vu TT, Aubertin-Leheudre M, Knäuper B, Dialahy IZ, Gouin JP. Trajectories of psychological distress during the COVID-19 pandemic among community-dwelling older adults in Quebec: A longitudinal study. Int J Geriatr Psychiatry 2023; 38:e5879. [PMID: 36703303 DOI: 10.1002/gps.5879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 01/12/2023] [Indexed: 01/18/2023]
Abstract
OBJECTIVE The COVID-19 pandemic and its associated public health measures may increase the risk for psychological distress among vulnerable older adults. This longitudinal study aimed to identify predictors of psychological distress trajectories among community-dwelling older adults in Quebec, Canada. METHODS The study spanned four time points across 13 months and three waves of the COVID-19 pandemic. The sample included 645 community-dwelling older adults ages 60 years and older in Quebec. Participants completed telephone-based interviews that included the Kessler 6-item Psychological Distress Scale (K6) to assess psychological distress at each time point as well as information on socioeconomic, medical, psychological and COVID-19 related factors. Group-based trajectory modelling was used to identify distinct trajectories of psychological distress across time. RESULTS Three group-based trajectories of psychological distress were identified: the resilient (50.5%), reactive (34.9%), and elevated distress groups (14.6%). Individuals with mobility issues, insomnia symptoms, COVID-19 related acute stress, general health anxiety, increased loneliness symptoms, and those unable to use technology to see others were more likely to be in the reactive and elevated groups than the resilient group. Those with past mental health problems had uniquely increased odds of being in the reactive group compared to the resilient group. Individuals living in poverty and those who reported taking psychotropic medication had increased odds of being in the elevated distress group compared to the resilient group. CONCLUSION These findings characterized distinct trajectories of psychological distress in older adults and identified risk factors for elevated distress levels.
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Affiliation(s)
- Sara Matovic
- Department of Psychology, Concordia University, Montreal, Quebec, Canada.,Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
| | - Sébastien Grenier
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada.,Department of Psychology, Université de Montréal, Montreal, Quebec, Canada
| | - Florence Jauvin
- Department of Psychology, Concordia University, Montreal, Quebec, Canada
| | - Catherine Gravel
- Department of Psychology, Concordia University, Montreal, Quebec, Canada
| | - Helen-Maria Vasiliadis
- Department of Community Health Sciences, Université de Sherbrooke, Montreal, Quebec, Canada
| | - Nancy Vasil
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
| | - Sylvie Belleville
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada.,Department of Psychology, Université de Montréal, Montreal, Quebec, Canada
| | - Pierre Rainville
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada.,Department of Stomatology, Université de Montréal, Montreal, Quebec, Canada
| | - Thien Thanh Dang-Vu
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada.,Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Quebec, Canada
| | - Mylène Aubertin-Leheudre
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada.,Département des sciences de l'activité physique, Université du Québec à Montréal, Montreal, Quebec, Canada
| | - Bärbel Knäuper
- Department of Psychology, McGill University, Montreal, Quebec, Canada
| | - Isaora Zefania Dialahy
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
| | - Jean-Philippe Gouin
- Department of Psychology, Concordia University, Montreal, Quebec, Canada.,Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada
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15
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Zhao JL, Cross N, Yao CW, Carrier J, Postuma RB, Gosselin N, Kakinami L, Dang-Vu TT. Insomnia disorder increases the risk of subjective memory decline in middle-aged and older adults: a longitudinal analysis of the Canadian Longitudinal Study on Aging. Sleep 2022; 45:zsac176. [PMID: 35877203 PMCID: PMC9644124 DOI: 10.1093/sleep/zsac176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 07/13/2022] [Indexed: 07/27/2023] Open
Abstract
STUDY OBJECTIVES To examine the longitudinal association between probable insomnia status and both subjective and objective memory decline in middle-aged and older adults. METHODS 26 363 participants, ≥45 years, completed baseline and follow-up (3 years after baseline) self-reported evaluations of sleep and memory, and neuropsychological testing in the following cognitive domains: memory, executive functions, and psychomotor speed. Participants were categorized as having probable insomnia disorder (PID), insomnia symptoms only (ISO), or no insomnia symptoms (NIS), based on sleep questionnaires. Participants were further grouped based on their sleep change over time. Prospective odds of self-reported memory worsening were assessed using logistic regression, and associations between insomnia and cognitive performance were assessed via linear mixed-effects modeling, adjusted for demographic, lifestyle, and medical factors. RESULTS An increased odds (OR 1.70; 95% CI 1.29-2.26) of self-reported memory worsening was observed for NIS participants at baseline who developed PID at follow-up compared to those who developed ISO or remained NIS. Additionally, participants whose sleep worsened from baseline to follow-up (i.e. transitioned from NIS to ISO, ISO to PID, or NIS to PID) displayed increased odds (OR 1.22; 95% CI 1.10-1.34) of subjective memory worsening at follow-up compared to those who remained insomnia-free or improved their sleep. There were no significant associations between the development of PID or worsening sleep and performance on neuropsychological tests. CONCLUSIONS These findings of an increased odds for subjective memory decline in middle-aged and older adults with insomnia disorder suggest insomnia may be an important target for early interventions addressing age-related cognitive decline.
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Affiliation(s)
| | - Nathan Cross
- Corresponding author. Nathan Cross and Thien Thanh Dang-Vu, Center for Studies in Behavioral Neurobiology and PERFORM Center, Concordia University, 7141 Sherbrooke St. West, SP 165.30, Montreal, QC, Canada. ;
| | - Chun W Yao
- Canadian Sleep and Circadian Network, Montreal, Canada
- Integrated Program in Neuroscience, McGill University, Montreal, Canada
- Research Institute of McGill University Health Center, Montreal, Canada
| | - Julie Carrier
- Institut Universitaire de Gériatrie de Montréal and CRIUGM, CIUSSS du Centre-Sud-de-l’Ile-de-Montréal, Montreal, Canada
- Canadian Sleep and Circadian Network, Montreal, Canada
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montreal, CIUSSS du Nord-de-l’Ile-de-Montréal, Montreal, Canada
- Department of Psychology, Université de Montréal, Montreal, Canada
| | - Ronald B Postuma
- Canadian Sleep and Circadian Network, Montreal, Canada
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montreal, CIUSSS du Nord-de-l’Ile-de-Montréal, Montreal, Canada
- Department of Neurology and Neurosurgery, McGill University—Montreal General Hospital, Montreal, Canada
| | - Nadia Gosselin
- Canadian Sleep and Circadian Network, Montreal, Canada
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montreal, CIUSSS du Nord-de-l’Ile-de-Montréal, Montreal, Canada
- Department of Psychology, Université de Montréal, Montreal, Canada
| | - Lisa Kakinami
- PERFORM Centre, Concordia University, Montreal, Canada
- Department of Mathematics and Statistics, Concordia University, Montreal, Canada
| | - Thien Thanh Dang-Vu
- Corresponding author. Nathan Cross and Thien Thanh Dang-Vu, Center for Studies in Behavioral Neurobiology and PERFORM Center, Concordia University, 7141 Sherbrooke St. West, SP 165.30, Montreal, QC, Canada. ;
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16
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Chaput JP, Janssen I, Sampasa-Kanyinga H, Carney CE, Dang-Vu TT, Davidson JR, Robillard R, Morin CM. Economic burden of insomnia symptoms in Canada. Sleep Health 2022; 9:185-189. [PMID: 36319579 DOI: 10.1016/j.sleh.2022.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/14/2022] [Accepted: 09/24/2022] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To estimate health care and productivity costs associated with insomnia symptoms in Canadian adults. METHODS Three pieces of information were needed to calculate estimates based on a prevalence-based approach: (1) the pooled relative risk estimates of health outcomes consistently associated with insomnia symptoms obtained from recent meta-analyses of prospective cohort studies; (2) the direct (health care) and indirect (lost productivity due to premature mortality) costs of these health outcomes using the Economic Burden of Illness in Canada information; and (3) the prevalence of insomnia symptoms in Canadian men (18.1%) and women (29.5%) obtained from a nationally-representative survey. RESULTS The direct, indirect, and total costs of insomnia symptoms in Canada in 2021 were $1.9 billion, $12.6 million, and $1.9 billion, respectively. This value represents 1.9% of the overall burden of illness costs for 2021 in Canada. The 2 most expensive chronic diseases attributable to insomnia symptoms were type 2 diabetes ($754 million) and depression ($706 million). The main contributor to the costs for type 2 diabetes and depression was prescription drugs. A 5% decrease in insomnia symptoms (from 23.8% to 18.8%) would result in an estimated $353 million in avoided costs while a 5% increase in insomnia symptoms (from 23.8% to 28.8%) would result in an estimated $333 million in additional expenditures yearly. CONCLUSIONS Insomnia symptoms greatly contribute to the economic burden of illness in Canada. Reducing the prevalence of insomnia symptoms would reduce its societal burden.
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Affiliation(s)
- Jean-Philippe Chaput
- Healthy Active Living and Obesity Research Group, CHEO Research Institute, Ottawa, Ontario, Canada; Department of Pediatrics, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada.
| | - Ian Janssen
- School of Kinesiology and Health Studies, Queen's University, Kingston, Ontario, Canada; Department of Public Health Sciences, Queen's University, Kingston, Ontario, Canada
| | - Hugues Sampasa-Kanyinga
- Healthy Active Living and Obesity Research Group, CHEO Research Institute, Ottawa, Ontario, Canada
| | - Colleen E Carney
- Department of Psychology, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Thien Thanh Dang-Vu
- Institut Universitaire de Gériatrie de Montréal and CRIUGM, CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Quebec, Canada; PERFORM Centre, Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Quebec, Canada
| | - Judith R Davidson
- Department of Psychology, Queen's University, Kingston, Ontario, Canada
| | - Rebecca Robillard
- The University of Ottawa Institute of Mental Health Research at The Royal, Ottawa, Ontario, Canada; School of Psychology, University of Ottawa, Ottawa, Ontario, Canada
| | - Charles M Morin
- School of Psychology, Laval University, Quebec City, Quebec, Canada
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17
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Moderie C, Carrier J, Dang-Vu TT. [Sleep disorders in patients with a neurocognitive disorder]. Encephale 2021; 48:325-334. [PMID: 34916075 DOI: 10.1016/j.encep.2021.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 08/24/2021] [Accepted: 08/29/2021] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Sleep disorders are prevalent in patients with a neurocognitive disorder, and diagnosis and treatment in these patients remain challenging in clinical practice. METHODS This narrative review offers a systematic approach to diagnose and treat sleep disorders in neurocognitive disorders. RESULTS Alzheimer's disease is often associated with circadian rhythm disorders, chronic insomnia, and sleep apnea-hypopnea syndrome. Alpha-synucleinopathies (e.g., Parkinson's disease and Lewy body dementia) are often associated with a rapid eye movement sleep behavior disorder, restless legs syndrome, chronic insomnia, and sleep apnea-hypopnea syndrome. A focused history allows to diagnose most sleep disorders. Clinicians should ensure to gather the following information in all patients with a neurocognitive disorder: (1) the presence of difficulties falling asleep or staying asleep, (2) the impact of sleep disturbances on daily functioning (fatigue, sleepiness and other daytime consequences), and (3) abnormal movements in sleep. Sleep diaries and questionnaires can assist clinicians in screening for specific sleep disorders. Polysomnography is recommended if a rapid eye movement sleep behavior disorder or a sleep apnea-hypopnea syndrome are suspected. Sleep complaints should prompt clinicians to ensure that comorbidities interfering with sleep are properly managed. The main treatment for moderate to severe obstructive sleep apnea-hypopnea syndrome remains continuous positive airway pressure, as its efficacy has been demonstrated in patients with neurocognitive disorders. Medications should also be reviewed, and time of administration should be optimized (diuretics and stimulating medications in the morning, sedating medications in the evening). Importantly, cholinesterase inhibitors (especially donepezil) may trigger insomnia. Switching to morning dosing or to an alternative drug may help. Cognitive-behavioral therapy for insomnia is indicated to treat chronic insomnia in neurocognitive disorders. False beliefs regarding sleep should be addressed with the patient and their caregiver. The sleep environment should be optimized (decrease light exposure at night, minimize noise, avoid taking vital signs, etc.). Sleep restriction can be considered as patients with a neurocognitive disorder often spend too much time in bed. The need for naps should be assessed case by case as naps may contribute to insomnia in some patients but allow others to complete their diurnal activities. Trazodone (50mg) may also be used under certain circumstances in chronic insomnia. Recent evidence does not support a role for exogenous melatonin in patients with a neucognitive disorder and insomnia. Patients in long-term care facilities are often deprived of an adequate diurnal exposure to light. Increasing daytime exposure to light may improve sleep and mood. Patients with circadian rhythm disorders can also benefit from light therapy (morning bright light therapy in case of phase delay and evening bright light therapy in case of phase advance). Rapid eye movement sleep behavior disorder can lead to violent behaviors, and the sleeping environment should be secured (e.g., mattress on the floor, remove surrounding objects). Medication exacerbating this disorder should be stopped if possible. High dose melatonin (6 to 18mg) or low dose clonazepam (0.125-0.25mg) at bedtime may be used to reduce symptoms. Melatonin is preferred in first-line as it is generally well tolerated with few side effects. Patients with restless legs syndrome should be investigated for iron deficiency. Medication decreasing dopaminergic activity should be reduced or stopped if possible. Behavioral strategies such as exercise and leg massages may be beneficial. Low-dose dopamine agonists (such as pramipexole 0.125mg two hours before bedtime) can be used to treat the condition, but a prolonged treatment may paradoxically worsen the symptoms. Alpha-2-delta calcium channel ligands can also be used while monitoring for the risk of falls. CONCLUSION Multiple and sustained nonpharmacological approaches are recommended for the treatment of sleep disturbances in patients with neurocognitive disorder. Pharmacological indications remain limited, and further randomized clinical trials integrating a multimodal approach are warranted to evaluate the treatment of sleep disorders in specific neurocognitive disorders.
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Affiliation(s)
- C Moderie
- Département de psychiatrie, université McGill, Montréal, Québec, Canada
| | - J Carrier
- Centre de recherche de l'institut universitaire de gériatrie de Montréal, Montréal, Québec, Canada; Département de psychologie, université de Montréal, Montréal, Québec, Canada; Centre d'études avancées en médecine du sommeil, Montréal, Québec, Canada
| | - T T Dang-Vu
- Centre de recherche de l'institut universitaire de gériatrie de Montréal, Montréal, Québec, Canada; Département de psychologie, université de Montréal, Montréal, Québec, Canada; Département de santé, kinésiologie et physiologie appliquée, centre d'études en neurobiologie comportementale et centre PERFORM, université Concordia, Montréal, Québec, Canada.
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18
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Cross NE, Pomares FB, Nguyen A, Perrault AA, Jegou A, Uji M, Lee K, Razavipour F, Ali OBK, Aydin U, Benali H, Grova C, Dang-Vu TT. An altered balance of integrated and segregated brain activity is a marker of cognitive deficits following sleep deprivation. PLoS Biol 2021; 19:e3001232. [PMID: 34735431 PMCID: PMC8568176 DOI: 10.1371/journal.pbio.3001232] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 09/28/2021] [Indexed: 11/19/2022] Open
Abstract
Sleep deprivation (SD) leads to impairments in cognitive function. Here, we tested the hypothesis that cognitive changes in the sleep-deprived brain can be explained by information processing within and between large-scale cortical networks. We acquired functional magnetic resonance imaging (fMRI) scans of 20 healthy volunteers during attention and executive tasks following a regular night of sleep, a night of SD, and a recovery nap containing nonrapid eye movement (NREM) sleep. Overall, SD was associated with increased cortex-wide functional integration, driven by a rise of integration within cortical networks. The ratio of within versus between network integration in the cortex increased further in the recovery nap, suggesting that prolonged wakefulness drives the cortex towards a state resembling sleep. This balance of integration and segregation in the sleep-deprived state was tightly associated with deficits in cognitive performance. This was a distinct and better marker of cognitive impairment than conventional indicators of homeostatic sleep pressure, as well as the pronounced thalamocortical connectivity changes that occurs towards falling asleep. Importantly, restoration of the balance between segregation and integration of cortical activity was also related to performance recovery after the nap, demonstrating a bidirectional effect. These results demonstrate that intra- and interindividual differences in cortical network integration and segregation during task performance may play a critical role in vulnerability to cognitive impairment in the sleep-deprived state.
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Affiliation(s)
- Nathan E. Cross
- PERFORM Centre, Concordia University, Montreal, Canada
- Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Canada
- Institut Universitaire de Gériatrie de Montréal and CRIUGM, CIUSSS du Centre-Sud-de-l’Île-de-Montréal, Montreal, Canada
| | - Florence B. Pomares
- PERFORM Centre, Concordia University, Montreal, Canada
- Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Canada
- Institut Universitaire de Gériatrie de Montréal and CRIUGM, CIUSSS du Centre-Sud-de-l’Île-de-Montréal, Montreal, Canada
| | - Alex Nguyen
- PERFORM Centre, Concordia University, Montreal, Canada
- Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Canada
- Multimodal Functional Imaging Lab, Department of Physics, Concordia University, Montreal, Canada
| | - Aurore A. Perrault
- PERFORM Centre, Concordia University, Montreal, Canada
- Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Canada
- Institut Universitaire de Gériatrie de Montréal and CRIUGM, CIUSSS du Centre-Sud-de-l’Île-de-Montréal, Montreal, Canada
| | - Aude Jegou
- PERFORM Centre, Concordia University, Montreal, Canada
- Multimodal Functional Imaging Lab, Department of Physics, Concordia University, Montreal, Canada
| | - Makoto Uji
- PERFORM Centre, Concordia University, Montreal, Canada
- Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Canada
- Multimodal Functional Imaging Lab, Department of Physics, Concordia University, Montreal, Canada
| | - Kangjoo Lee
- Multimodal Functional Imaging Lab, Department of Physics, Concordia University, Montreal, Canada
- Multimodal Functional Imaging Lab, Biomedical Engineering Department, Neurology and Neurosurgery Department, McGill University, Montreal, Quebec, Canada
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Fatemeh Razavipour
- PERFORM Centre, Concordia University, Montreal, Canada
- Multimodal Functional Imaging Lab, Department of Physics, Concordia University, Montreal, Canada
- Multimodal Functional Imaging Lab, Biomedical Engineering Department, Neurology and Neurosurgery Department, McGill University, Montreal, Quebec, Canada
| | - Obaï Bin Ka’b Ali
- PERFORM Centre, Concordia University, Montreal, Canada
- Multimodal Functional Imaging Lab, Department of Physics, Concordia University, Montreal, Canada
- Multimodal Functional Imaging Lab, Biomedical Engineering Department, Neurology and Neurosurgery Department, McGill University, Montreal, Quebec, Canada
| | - Umit Aydin
- PERFORM Centre, Concordia University, Montreal, Canada
- Multimodal Functional Imaging Lab, Department of Physics, Concordia University, Montreal, Canada
- Multimodal Functional Imaging Lab, Biomedical Engineering Department, Neurology and Neurosurgery Department, McGill University, Montreal, Quebec, Canada
- Social, Genetic, and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology, and Neuroscience, King’s College London, London, United Kingdom
| | - Habib Benali
- PERFORM Centre, Concordia University, Montreal, Canada
| | - Christophe Grova
- PERFORM Centre, Concordia University, Montreal, Canada
- Multimodal Functional Imaging Lab, Department of Physics, Concordia University, Montreal, Canada
- Multimodal Functional Imaging Lab, Biomedical Engineering Department, Neurology and Neurosurgery Department, McGill University, Montreal, Quebec, Canada
| | - Thien Thanh Dang-Vu
- PERFORM Centre, Concordia University, Montreal, Canada
- Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Canada
- Institut Universitaire de Gériatrie de Montréal and CRIUGM, CIUSSS du Centre-Sud-de-l’Île-de-Montréal, Montreal, Canada
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19
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Frimpong E, Mograss M, Zvionow T, Dang-Vu TT. The effects of evening high-intensity exercise on sleep in healthy adults: A systematic review and meta-analysis. Sleep Med Rev 2021; 60:101535. [PMID: 34416428 DOI: 10.1016/j.smrv.2021.101535] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 07/15/2021] [Accepted: 07/21/2021] [Indexed: 01/02/2023]
Abstract
Moderate-intensity exercise is generally recommended for improving sleep, whereas, high-intensity exercise (HIE) prior to bedtime is often discouraged. We conducted a systematic review and meta-analysis to determine if acute or regular (chronic) HIE performed before bedtime disrupts nighttime sleep of healthy adult, good sleepers compared with a no-exercise control. Six databases (PubMed, EMBASE, Scopus, Web of Science, CENTRAL, and PsycINFO) were searched from inception to 31st May, 2021. Studies were experimental trials published in English language, objectively (polysomnography, actigraphy) and/or subjectively assessed sleep after evening HIE in sedentary and physically fit, good sleepers (aged 18-50 y old). The revised Cochrane risk of bias tool for randomized trials was used to assess risk of bias in the included studies. The random-effects model was used for the meta-analyses. We included 15 acute evening HIE studies in the meta-analysis with a total of 194 participants. Acute evening HIE ending 0.5-4 h before bedtime decreased rapid eye movement sleep (-2.34%; p = 0.002) compared with a no-exercise control. No other significant sleep changes occurred. A regular evening HIE did not disrupt nighttime sleep. Overall, acute evening HIE performed 2-4 h before bedtime does not disrupt nighttime sleep of healthy, young and middle-aged adults. PROSPERO, protocol registration number: CRD42020218299.
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Affiliation(s)
- Emmanuel Frimpong
- Department of Health, Kinesiology & Applied Physiology, Concordia University, Montreal, QC, CA, Canada; Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, CA, Canada; PERFORM Center, Concordia University, Montreal, QC, CA, Canada
| | - Melodee Mograss
- Department of Health, Kinesiology & Applied Physiology, Concordia University, Montreal, QC, CA, Canada; Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, CA, Canada; PERFORM Center, Concordia University, Montreal, QC, CA, Canada; Centre de Recherche de L'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre- Sud-de-l'île-de-Montréal, Montreal, QC, CA, Canada
| | - Tehila Zvionow
- Department of Health, Kinesiology & Applied Physiology, Concordia University, Montreal, QC, CA, Canada; Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, CA, Canada; PERFORM Center, Concordia University, Montreal, QC, CA, Canada
| | - Thien Thanh Dang-Vu
- Department of Health, Kinesiology & Applied Physiology, Concordia University, Montreal, QC, CA, Canada; Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, CA, Canada; PERFORM Center, Concordia University, Montreal, QC, CA, Canada; Centre de Recherche de L'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre- Sud-de-l'île-de-Montréal, Montreal, QC, CA, Canada.
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20
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Uji M, Cross N, Pomares FB, Perrault AA, Jegou A, Nguyen A, Aydin U, Lina JM, Dang-Vu TT, Grova C. Data-driven beamforming technique to attenuate ballistocardiogram artefacts in electroencephalography-functional magnetic resonance imaging without detecting cardiac pulses in electrocardiography recordings. Hum Brain Mapp 2021; 42:3993-4021. [PMID: 34101939 PMCID: PMC8288107 DOI: 10.1002/hbm.25535] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 05/03/2021] [Accepted: 05/06/2021] [Indexed: 11/21/2022] Open
Abstract
Simultaneous recording of electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) is a very promising non‐invasive neuroimaging technique. However, EEG data obtained from the simultaneous EEG–fMRI are strongly influenced by MRI‐related artefacts, namely gradient artefacts (GA) and ballistocardiogram (BCG) artefacts. When compared to the GA correction, the BCG correction is more challenging to remove due to its inherent variabilities and dynamic changes over time. The standard BCG correction (i.e., average artefact subtraction [AAS]), require detecting cardiac pulses from simultaneous electrocardiography (ECG) recording. However, ECG signals are also distorted and will become problematic for detecting reliable cardiac peaks. In this study, we focused on a beamforming spatial filtering technique to attenuate all unwanted source activities outside of the brain. Specifically, we applied the beamforming technique to attenuate the BCG artefact in EEG–fMRI, and also to recover meaningful task‐based neural signals during an attentional network task (ANT) which required participants to identify visual cues and respond accurately. We analysed EEG–fMRI data in 20 healthy participants during the ANT, and compared four different BCG corrections (non‐BCG corrected, AAS BCG corrected, beamforming + AAS BCG corrected, beamforming BCG corrected). We demonstrated that the beamforming approach did not only significantly reduce the BCG artefacts, but also significantly recovered the expected task‐based brain activity when compared to the standard AAS correction. This data‐driven beamforming technique appears promising especially for longer data acquisition of sleep and resting EEG–fMRI. Our findings extend previous work regarding the recovery of meaningful EEG signals by an optimized suppression of MRI‐related artefacts.
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Affiliation(s)
- Makoto Uji
- Multimodal Functional Imaging Lab, Department of Physics and PERFORM Centre, Concordia University, Montréal, Québec, Canada
| | - Nathan Cross
- PERFORM Centre, Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montréal, Québec, Canada.,Institut Universitaire de Gériatrie de Montréal and CRIUGM, CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montréal, Québec, Canada
| | - Florence B Pomares
- PERFORM Centre, Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montréal, Québec, Canada.,Institut Universitaire de Gériatrie de Montréal and CRIUGM, CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montréal, Québec, Canada
| | - Aurore A Perrault
- PERFORM Centre, Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montréal, Québec, Canada.,Institut Universitaire de Gériatrie de Montréal and CRIUGM, CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montréal, Québec, Canada
| | - Aude Jegou
- Multimodal Functional Imaging Lab, Department of Physics and PERFORM Centre, Concordia University, Montréal, Québec, Canada.,Aix-Marseille University, Inserm, INS, Institut de Neurosciences des Systèmes, Marseille, France
| | - Alex Nguyen
- PERFORM Centre, Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montréal, Québec, Canada.,Institut Universitaire de Gériatrie de Montréal and CRIUGM, CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montréal, Québec, Canada
| | - Umit Aydin
- Multimodal Functional Imaging Lab, Department of Physics and PERFORM Centre, Concordia University, Montréal, Québec, Canada.,Social, Genetic, and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, UK
| | - Jean-Marc Lina
- Departement de Genie Electrique, Ecole de Technologie Superieure, Montreal, Quebec, Canada.,Centre de Recherches Mathematiques, Montréal, Québec, Canada
| | - Thien Thanh Dang-Vu
- PERFORM Centre, Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montréal, Québec, Canada.,Institut Universitaire de Gériatrie de Montréal and CRIUGM, CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montréal, Québec, Canada
| | - Christophe Grova
- Multimodal Functional Imaging Lab, Department of Physics and PERFORM Centre, Concordia University, Montréal, Québec, Canada.,Centre de Recherches Mathematiques, Montréal, Québec, Canada.,Multimodal Functional Imaging Lab, Biomedical Engineering Department, Neurology and Neurosurgery Department, McGill University, Montréal, Québec, Canada
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21
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Mograss M, Crosetta M, Abi-Jaoude J, Frolova E, Robertson EM, Pepin V, Dang-Vu TT. Exercising before a nap benefits memory better than napping or exercising alone. Sleep 2021; 43:5814272. [PMID: 32236442 DOI: 10.1093/sleep/zsaa062] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 03/03/2020] [Indexed: 11/14/2022] Open
Abstract
Sleep leads to the enhancement of memory, and physical exercise also improves memory along with beneficial effects on sleep quality. Potentially, sleep and exercise may operate independently upon memory; alternatively, they may operate synergistically to boost memory above and beyond exercise or sleep alone. We tested this hypothesis in 115 young healthy adults (23 ± 3.9 years) randomly allocated to one of the four conditions in a 2 (exercise vs. no exercise) × 2 (nap vs. no nap) design. The exercise intervention consisted of a 40-minute, moderate intensity cycling, while the no exercise condition was an equivalent period of rest. This was followed by a learning session in which participants memorized a set of 45 neutral pictures for a later test. Subsequently, participants were exposed to either a 60-minute sleep period (nap) or an equivalent time of resting wakefulness, followed by a visual recognition test. We found a significant interaction between the effects of exercise and nap (p = 0.014, η p2 = 0.053), without significant main effects of exercise or nap conditions. Participants who experienced both exercise plus nap were significantly more accurate (83.8 ± 2.9) than those who only napped (81.1 ± 5.4, p = 0.027) and those who only exercised (78.6 ± 10.3, p = 0.012). Within the combined nap plus exercise group, higher recognition accuracies were associated with higher sleep spindle densities (r = 0.46, p = 0.015). Our results demonstrate that short-term exercise and a nap improve recognition memory over a nap or exercise alone. Exercise and sleep are not independent factors operating separately upon memory but work together to enhance long-term memory.
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Affiliation(s)
- Melodee Mograss
- Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, QC, Canada.,Department of Psychology, Concordia University, Montreal, QC, Canada.,PERFORM Centre, Concordia University, Montreal, QC, Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montreal, QC, Canada
| | - Monica Crosetta
- Department of Psychology, Concordia University, Montreal, QC, Canada
| | - Joanne Abi-Jaoude
- Department of Psychology, Concordia University, Montreal, QC, Canada
| | - Elizaveta Frolova
- Department of Psychology, Concordia University, Montreal, QC, Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montreal, QC, Canada
| | - Edwin M Robertson
- Institute of Neuroscience & Psychology, University of Glasgow, Glasgow, UK
| | - Veronique Pepin
- Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, QC, Canada.,PERFORM Centre, Concordia University, Montreal, QC, Canada.,Centre de recherche, Hôpital du Sacré-Cœur de Montréal, Montréal, QC, Canada
| | - Thien Thanh Dang-Vu
- Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, QC, Canada.,PERFORM Centre, Concordia University, Montreal, QC, Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montreal, QC, Canada
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22
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Cross N, Paquola C, Pomares FB, Perrault AA, Jegou A, Nguyen A, Aydin U, Bernhardt BC, Grova C, Dang-Vu TT. Cortical gradients of functional connectivity are robust to state-dependent changes following sleep deprivation. Neuroimage 2020; 226:117547. [PMID: 33186718 DOI: 10.1016/j.neuroimage.2020.117547] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 10/19/2020] [Accepted: 11/04/2020] [Indexed: 12/26/2022] Open
Abstract
Sleep deprivation leads to significant impairments in cognitive performance and changes to the interactions between large scale cortical networks, yet the hierarchical organization of cortical activity across states is still being explored. We used functional magnetic resonance imaging to assess activations and connectivity during cognitive tasks in 20 healthy young adults, during three states: (i) following a normal night of sleep, (ii) following 24hr of total sleep deprivation, and (iii) after a morning recovery nap. Situating cortical activity during cognitive tasks along hierarchical organizing gradients based upon similarity of functional connectivity patterns, we found that regional variations in task-activations were captured by an axis differentiating areas involved in executive control from default mode regions and paralimbic cortex. After global signal regression, the range of functional differentiation along this axis at baseline was significantly related to decline in working memory performance (2-back task) following sleep deprivation, as well as the extent of recovery in performance following a nap. The relative positions of cortical regions within gradients did not significantly change across states, except for a lesser differentiation of the visual system and increased coupling of the posterior cingulate cortex with executive control areas after sleep deprivation. This was despite a widespread increase in the magnitude of functional connectivity across the cortex following sleep deprivation. Cortical gradients of functional differentiation thus appear relatively insensitive to state-dependent changes following sleep deprivation and recovery, suggesting that there are no large-scale changes in cortical functional organization across vigilance states. Certain features of particular gradient axes may be informative for the extent of decline in performance on more complex tasks following sleep deprivation, and could be beneficial over traditional voxel- or parcel-based approaches in identifying realtionships between state-dependent brain activity and behavior.
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Affiliation(s)
- Nathan Cross
- PERFORM Centre, Concordia University, Montreal, Canada; Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Canada; Institut Universitaire de Gériatrie de Montréal and CRIUGM, CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Canada.
| | - Casey Paquola
- Multimodal Imaging and Connectome Analysis Lab, McConnell Brain Imaging Centre, Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada
| | - Florence B Pomares
- PERFORM Centre, Concordia University, Montreal, Canada; Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Canada; Institut Universitaire de Gériatrie de Montréal and CRIUGM, CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Canada
| | - Aurore A Perrault
- PERFORM Centre, Concordia University, Montreal, Canada; Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Canada; Institut Universitaire de Gériatrie de Montréal and CRIUGM, CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Canada
| | - Aude Jegou
- PERFORM Centre, Concordia University, Montreal, Canada; Multimodal Functional Imaging lab, Department of Physics, Concordia University, Montreal, Canada
| | - Alex Nguyen
- PERFORM Centre, Concordia University, Montreal, Canada; Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Canada
| | - Umit Aydin
- PERFORM Centre, Concordia University, Montreal, Canada; Multimodal Functional Imaging lab, Department of Physics, Concordia University, Montreal, Canada; Multimodal Funational Imaging Lab, Biomedical Engineering Dpt, Neurology and Neurosurgery Dpt, McGill University, Montreal, Quebec, Canada
| | - Boris C Bernhardt
- Multimodal Imaging and Connectome Analysis Lab, McConnell Brain Imaging Centre, Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada
| | - Christophe Grova
- PERFORM Centre, Concordia University, Montreal, Canada; Multimodal Functional Imaging lab, Department of Physics, Concordia University, Montreal, Canada; Multimodal Funational Imaging Lab, Biomedical Engineering Dpt, Neurology and Neurosurgery Dpt, McGill University, Montreal, Quebec, Canada.
| | - Thien Thanh Dang-Vu
- PERFORM Centre, Concordia University, Montreal, Canada; Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Canada; Institut Universitaire de Gériatrie de Montréal and CRIUGM, CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Canada.
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23
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Gool JK, Cross N, Fronczek R, Lammers GJ, van der Werf YD, Dang-Vu TT. Neuroimaging in Narcolepsy and Idiopathic Hypersomnia: from Neural Correlates to Clinical Practice. Curr Sleep Medicine Rep 2020. [DOI: 10.1007/s40675-020-00185-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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24
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Perogamvros L, Castelnovo A, Samson D, Dang-Vu TT. Failure of fear extinction in insomnia: An evolutionary perspective. Sleep Med Rev 2020; 51:101277. [DOI: 10.1016/j.smrv.2020.101277] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 01/07/2020] [Accepted: 01/13/2020] [Indexed: 12/22/2022]
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25
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Hudon C, Escudier F, De Roy J, Croteau J, Cross N, Dang-Vu TT, Zomahoun HTV, Grenier S, Gagnon JF, Parent A, Bruneau MA, Belleville S. Behavioral and Psychological Symptoms that Predict Cognitive Decline or Impairment in Cognitively Normal Middle-Aged or Older Adults: a Meta-Analysis. Neuropsychol Rev 2020; 30:558-579. [PMID: 32394109 DOI: 10.1007/s11065-020-09437-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 03/30/2020] [Indexed: 12/12/2022]
Abstract
Epidemiological studies have revealed that behavioral and psychological (or non-cognitive) symptoms are risk factors for cognitive decline in older adults. This study aimed to systematically review the literature and determine which behavioral and psychological symptoms are most predictive of future cognitive decline among individuals with no pre-existing cognitive impairments. The selected studies included middle-aged or older adults without cognitive impairments. The predictors were assessed using behavioral and psychological questionnaires, or diagnostic interviews, to identify non-cognitive symptoms or psychiatric clinical conditions. The follow-up period was at least one year, and the design of the selected studies was either retrospective or prospective. This study compared individuals with and without non-cognitive manifestations and resulted in one of three outcomes: (a) a score change on a cognitive measure, (b) a diagnosis of mild cognitive impairment, or (c) a diagnosis of Alzheimer's disease or dementia. Four online databases were searched for eligible studies from the database inception to January 17, 2017: MEDLINE (PubMed), Embase (OVID), PsycINFO, and Web of Science. Pooled effect sizes were estimated using a random-effect model. Higgins I2, the Q statistic, and tau-squared were used to quantify the observed heterogeneity between the studies. Results indicate that depression and sleep duration (long and short) were the most consistent associations between behavioral or psychological symptoms and cognitive decline. This meta-analysis supports the need to assess behavioral and psychological symptoms in cognitively intact older adults to identify those who are at risk for cognitive decline.
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Affiliation(s)
- Carol Hudon
- École de psychologie, Université Laval, 2601, ch. de la Canardière (F-2400), Québec, QC, G1J 2G3, Canada. .,CERVO Brain Research Centre, Québec, QC, Canada.
| | - Frédérique Escudier
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, Montréal, QC, Canada
| | - Jessie De Roy
- Département de psychologie, Université du Québec à Montréal, Montréal, QC, Canada.,Centre de recherche, Hôpital du Sacré-Cœur de Montréal, CIUSSS-NÎM, Montréal, QC, Canada
| | - Jordie Croteau
- Health and Social Services Systems, Knowledge Translation and Implementation component of the Quebec SPOR-SUPPORT Unit, Université Laval, Québec, QC, Canada.,Population Health and Practice-Changing Research Group, Research Centre of CHU de Québec-Université Laval, Québec, QC, Canada
| | - Nathan Cross
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, Montréal, QC, Canada.,Department of Health, Kinesiology and Applied Physiology, Concordia University, Montréal, QC, Canada
| | - Thien Thanh Dang-Vu
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, Montréal, QC, Canada.,Department of Health, Kinesiology and Applied Physiology, Concordia University, Montréal, QC, Canada
| | - Hervé Tchala Vignon Zomahoun
- Health and Social Services Systems, Knowledge Translation and Implementation component of the Quebec SPOR-SUPPORT Unit, Université Laval, Québec, QC, Canada.,Population Health and Practice-Changing Research Group, Research Centre of CHU de Québec-Université Laval, Québec, QC, Canada
| | - Sébastien Grenier
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, Montréal, QC, Canada.,Département de psychologie, Université de Montréal, Montréal, QC, Canada
| | - Jean-François Gagnon
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, Montréal, QC, Canada.,Département de psychologie, Université du Québec à Montréal, Montréal, QC, Canada.,Centre de recherche, Hôpital du Sacré-Cœur de Montréal, CIUSSS-NÎM, Montréal, QC, Canada
| | | | - Marie-Andrée Bruneau
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, Montréal, QC, Canada.,Département de psychiatrie, Université de Montréal, Montréal, QC, Canada
| | - Sylvie Belleville
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal, Montréal, QC, Canada.,Département de psychologie, Université de Montréal, Montréal, QC, Canada
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26
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Machado FV, Louzada LL, Cross NE, Camargos EF, Dang-Vu TT, Nóbrega OT. More than a quarter century of the most prescribed sleeping pill: Systematic review of zolpidem use by older adults. Exp Gerontol 2020; 136:110962. [PMID: 32360985 DOI: 10.1016/j.exger.2020.110962] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/14/2020] [Accepted: 04/20/2020] [Indexed: 12/12/2022]
Abstract
Zolpidem is widely used to treat insomnia of older adults despite that few randomized controlled studies were conducted in this group. We systematically reviewed the relevant literature on efficacy/effectiveness and safety of zolpidem use by elderly individuals in relevant databases completed with a manual search of key journals. Studies were required to include individuals aged ≥60 years under intervention with zolpidem compared to placebo or other hypnosedatives. Outcomes were either objectively- or subjectively-assessed improvements in specific sleep parameters and safety for clinical use. The 31 reports selected for review were mostly of low-quality. The evidence suggests that zolpidem is useful typically by reducing sleep latency and episodes of wake after sleep onset, and increasing total sleep time and sleep efficiency. Regarding safety and tolerability, analyses suggest a low risk of daytime sleepiness and of deleterious effects on memory or psychomotor performance, provided that recommended dosage and precautions are followed. Few retrospective studies associate zolpidem use with risk of falls, fractures, dementia, cancer, and stroke. Zolpidem appears effective at lower doses and for short-term treatment among the elderly. Rigorous, new clinical trials are warranted to further document the specific effects of zolpidem in older individuals.
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Affiliation(s)
- Flávio V Machado
- Graduation Program in Medical Sciences, University of Brasilia, Campus Universitário Darcy Ribeiro, Brasília, DF 70910-900, Brazil
| | - Luciana L Louzada
- Graduation Program in Medical Sciences, University of Brasilia, Campus Universitário Darcy Ribeiro, Brasília, DF 70910-900, Brazil; Geriatric Medical Centre, Brasilia University Hospital, SGAN 605 Av. L2 Norte, Brasilia, DF 70840-901, Brazil
| | - Nathan E Cross
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal (CRIUGM), 4545 chemin Queen-Mary, Montreal, Qc H3W 1W5, Canada; Center for Studies in Behavioral Neurobiology and PERFORM Center, Department of Health, Kinesiology and Applied Physiology, Concordia University, 7141 Sherbrooke Street West, Montreal, Qc H4B 1R6, Canada
| | - Einstein F Camargos
- Graduation Program in Medical Sciences, University of Brasilia, Campus Universitário Darcy Ribeiro, Brasília, DF 70910-900, Brazil; Geriatric Medical Centre, Brasilia University Hospital, SGAN 605 Av. L2 Norte, Brasilia, DF 70840-901, Brazil
| | - Thien Thanh Dang-Vu
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal (CRIUGM), 4545 chemin Queen-Mary, Montreal, Qc H3W 1W5, Canada; Center for Studies in Behavioral Neurobiology and PERFORM Center, Department of Health, Kinesiology and Applied Physiology, Concordia University, 7141 Sherbrooke Street West, Montreal, Qc H4B 1R6, Canada
| | - Otávio T Nóbrega
- Graduation Program in Medical Sciences, University of Brasilia, Campus Universitário Darcy Ribeiro, Brasília, DF 70910-900, Brazil; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal (CRIUGM), 4545 chemin Queen-Mary, Montreal, Qc H3W 1W5, Canada.
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27
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Cross NE, Carrier J, Postuma RB, Gosselin N, Kakinami L, Thompson C, Chouchou F, Dang-Vu TT. Association between insomnia disorder and cognitive function in middle-aged and older adults: a cross-sectional analysis of the Canadian Longitudinal Study on Aging. Sleep 2020; 42:5488740. [PMID: 31089710 DOI: 10.1093/sleep/zsz114] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 02/27/2019] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVES This study examined the differences in cognitive function between middle-aged and older adults with insomnia disorder, insomnia symptoms only (ISO) or no insomnia symptoms (NIS), in the context of other health and lifestyle factors. METHODS Twenty-eight thousand four hundred eighty-five participants >45 years completed questionnaires, physical examinations, and neuropsychological testing across domains of processing speed, memory, and executive functions. An eight-question instrument assessed participants' sleep, defining subjects with insomnia symptoms, probable insomnia disorder (PID), or NIS. The associations between these three groups and cognitive performance were examined with linear regression models adjusted for lifestyle and clinical factors. RESULTS PID was identified in 1,068 participants (3.7% of the sample) while 7,813 (27.5%) experienced ISO. Participants with PID exhibited greater proportions of adverse medical and lifestyle features such as anxiety, depression, and diabetes than both other groups. Analyses adjusting for age, sex, education, as well as medical and lifestyle factors demonstrated that adults with PID exhibited declarative memory deficits (Rey Auditory Verbal Learning Test) compared with ISO or NIS. Adults with insomnia symptoms exhibited better performance on a task of mental flexibility than both other groups. CONCLUSIONS These findings suggest that insomnia disorder in middle-aged and older adults is associated with poorer health outcomes and worse memory performance than adults with insomnia symptoms alone or without any sleep complaints, even after adjustment for comorbidities. The assessment of longitudinal data within this cohort will be critical to understand if insomnia disorder may increase the risk of further cognitive decline.
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Affiliation(s)
- Nathan E Cross
- Institut Universitaire de Geriatrie de Montreal and CRIUGM, CIUSSS du Centre-Sud-de-l'Ile-de-Montreal, Montreal, Canada.,PERFORM Centre, Concordia University, Montreal, Canada.,Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Canada.,Canadian Sleep and Circadian Network, Montreal, Canada
| | - Julie Carrier
- Institut Universitaire de Geriatrie de Montreal and CRIUGM, CIUSSS du Centre-Sud-de-l'Ile-de-Montreal, Montreal, Canada.,Canadian Sleep and Circadian Network, Montreal, Canada.,Center for Advanced Research in Sleep Medicine, Hopital du Sacre- Coeur de Montreal, CIUSSS du Nord-de-l'Ile-de-Montreal, Montreal, Canada
| | - Ronald B Postuma
- Canadian Sleep and Circadian Network, Montreal, Canada.,Center for Advanced Research in Sleep Medicine, Hopital du Sacre- Coeur de Montreal, CIUSSS du Nord-de-l'Ile-de-Montreal, Montreal, Canada.,Department of Neurology, McGill University - Montreal General Hospital, Montreal, Canada
| | - Nadia Gosselin
- Canadian Sleep and Circadian Network, Montreal, Canada.,Center for Advanced Research in Sleep Medicine, Hopital du Sacre- Coeur de Montreal, CIUSSS du Nord-de-l'Ile-de-Montreal, Montreal, Canada.,Department of Psychology, Universite de Montreal, Montreal, Canada
| | - Lisa Kakinami
- PERFORM Centre, Concordia University, Montreal, Canada.,Department of Mathematics and Statistics, Concordia University
| | - Cynthia Thompson
- Center for Advanced Research in Sleep Medicine, Hopital du Sacre- Coeur de Montreal, CIUSSS du Nord-de-l'Ile-de-Montreal, Montreal, Canada
| | - Florian Chouchou
- Institut Universitaire de Geriatrie de Montreal and CRIUGM, CIUSSS du Centre-Sud-de-l'Ile-de-Montreal, Montreal, Canada.,PERFORM Centre, Concordia University, Montreal, Canada.,IRISSE Laboratory, UFR SHE, University of La Réunion, Le Tampon, France
| | - Thien Thanh Dang-Vu
- Institut Universitaire de Geriatrie de Montreal and CRIUGM, CIUSSS du Centre-Sud-de-l'Ile-de-Montreal, Montreal, Canada.,PERFORM Centre, Concordia University, Montreal, Canada.,Center for Studies in Behavioral Neurobiology, Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Canada.,Canadian Sleep and Circadian Network, Montreal, Canada
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28
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Abstract
Sleep can benefit memory consolidation. The characterization of brain regions underlying memory consolidation during sleep, as well as their temporal interplay, reflected by specific patterns of brain electric activity, is surfacing. Here, we provide an overview of recent concepts and results on the mechanisms of sleep-related memory consolidation. The latest studies strongly impacting future directions of research in this field are highlighted.
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Affiliation(s)
- Lisa Marshall
- Institute for Experimental and Clinical Pharmacology and Toxicology, University of Luebeck, Luebeck, Germany
- Center for Brain, Behavior and Metabolism, University of Luebeck, Luebeck, Germany
| | - Nathan Cross
- Perform Center, Center for Studies in Behavioral Neurobiology, and Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Quebec, Canada
- Centre de Recherche de l’Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l’Ile-de-Montréal, Montreal, Quebec, Canada
| | - Sonja Binder
- Institute for Experimental and Clinical Pharmacology and Toxicology, University of Luebeck, Luebeck, Germany
- Center for Brain, Behavior and Metabolism, University of Luebeck, Luebeck, Germany
| | - Thien Thanh Dang-Vu
- Perform Center, Center for Studies in Behavioral Neurobiology, and Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Quebec, Canada
- Centre de Recherche de l’Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l’Ile-de-Montréal, Montreal, Quebec, Canada
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29
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Pomares FB, Boucetta S, Lachapelle F, Steffener J, Montplaisir J, Cha J, Kim H, Dang-Vu TT. Beyond sleepy: structural and functional changes of the default-mode network in idiopathic hypersomnia. Sleep 2019; 42:zsz156. [PMID: 31328786 PMCID: PMC6802570 DOI: 10.1093/sleep/zsz156] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 05/08/2019] [Indexed: 01/01/2023] Open
Abstract
Idiopathic hypersomnia (IH) is characterized by excessive daytime sleepiness but, in contrast to narcolepsy, does not involve cataplexy, sleep-onset REM periods, or any consistent hypocretin-1 deficiency. The pathophysiological mechanisms of IH remain unclear. Because of the involvement of the default-mode network (DMN) in alertness and sleep, our aim was to investigate the structural and functional modifications of the DMN in IH. We conducted multimodal magnetic resonance imaging (MRI) in 12 participants with IH and 15 good sleeper controls (mean age ± SD: 32 ± 9.6 years, range 22-53 years, nine males). Self-reported as well as objective measures of daytime sleepiness were collected. Gray matter volume and cortical thickness were analyzed to investigate brain structural differences between good sleepers and IH. Structural covariance and resting-state functional connectivity were analyzed to investigate changes in the DMN. Participants with IH had greater volume and cortical thickness in the precuneus, a posterior hub of the DMN. Cortical thickness in the left medial prefrontal cortex was positively correlated with thickness of the precuneus, and the strength of this correlation was greater in IH. In contrast, functional connectivity at rest was lower within the anterior DMN (medial prefrontal cortex) in IH, and correlated with self-reported daytime sleepiness. The present results show that IH is associated with structural and functional differences in the DMN, in proportion to the severity of daytime sleepiness, suggesting that a disruption of the DMN contributes to the clinical features of IH. Larger volume and thickness in this network might reflect compensatory changes to lower functional connectivity in IH.
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Affiliation(s)
- Florence B Pomares
- Center for Studies in Behavioral Neurobiology and Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, QC, Canada
- PERFORM Centre, Concordia University, Montreal, QC, Canada
- Centre de Recherche de l’Institut Universitaire de Gériatrie de Montréal, Montreal, QC, Canada
| | - Soufiane Boucetta
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montréal, Montreal, QC, Canada
| | - Francis Lachapelle
- Center for Studies in Behavioral Neurobiology and Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, QC, Canada
- PERFORM Centre, Concordia University, Montreal, QC, Canada
- Centre de Recherche de l’Institut Universitaire de Gériatrie de Montréal, Montreal, QC, Canada
| | - Jason Steffener
- Interdisciplinary School of Health Science, University of Ottawa, Ottawa, ON, Canada
| | - Jacques Montplaisir
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montréal, Montreal, QC, Canada
- Department of Psychiatry, Université de Montréal, Montreal, QC, Canada
| | - Jungho Cha
- Memory and Aging Center, Department of Neurology, University of California San Francisco, San Francisco, CA
| | - Hosung Kim
- USC Stevens Neuroimaging and Informatics Institute, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA
| | - Thien Thanh Dang-Vu
- Center for Studies in Behavioral Neurobiology and Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, QC, Canada
- PERFORM Centre, Concordia University, Montreal, QC, Canada
- Centre de Recherche de l’Institut Universitaire de Gériatrie de Montréal, Montreal, QC, Canada
- Department of Neurosciences, Université de Montréal, Montreal, QC, Canada
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Jegou A, Schabus M, Gosseries O, Dahmen B, Albouy G, Desseilles M, Sterpenich V, Phillips C, Maquet P, Grova C, Dang-Vu TT. Cortical reactivations during sleep spindles following declarative learning. Neuroimage 2019; 195:104-112. [DOI: 10.1016/j.neuroimage.2019.03.051] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 02/21/2019] [Accepted: 03/23/2019] [Indexed: 01/10/2023] Open
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Desjardins MÈ, Baril AA, Soucy JP, Dang-Vu TT, Desautels A, Petit D, Montplaisir J, Zadra A. Altered brain perfusion patterns in wakefulness and slow-wave sleep in sleepwalkers. Sleep 2019. [PMID: 29514303 DOI: 10.1093/sleep/zsy039] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Study Objectives The present study assessed brain perfusion patterns with single-photon emission computed tomography (SPECT) during sleepwalkers' post-sleep deprivation slow-wave sleep (SWS) and resting-state wakefulness. Methods Following a 24 hr period of sleep deprivation, 10 sleepwalkers and 10 sex- and age-matched controls were scanned with a high-resolution SPECT scanner. Participants were injected with 99mTc-ethylene cysteinate dimer after 2 min of stable SWS within their first sleep cycle as well as during resting-state wakefulness, both after a subsequent 24 hr period of sleep deprivation. Results When compared with controls' brain perfusion patterns during both SWS and resting-state wakefulness, sleepwalkers showed reduced regional cerebral perfusion in several bilateral frontal regions, including the superior frontal, middle frontal, and medial frontal gyri. Moreover, reduced regional cerebral perfusion was also found in sleepwalkers' left postcentral gyrus, insula, and superior temporal gyrus during SWS compared with controls. During resting-state wakefulness compared with controls, reduced cerebral perfusion was also found in parietal and temporal regions of sleepwalkers' left hemisphere, whereas the right parahippocampal gyrus showed increased regional cerebral perfusion. Conclusions Our results reveal patterns of reduced regional cerebral perfusion in sleepwalkers' frontal and parietal areas when compared with controls, regions previously associated with SWS generation and episode occurrence. Additionally, reduced perfusion in the dorsolateral prefrontal cortex and insula during recovery SWS is consistent with the clinical features of somnambulistic episodes, including impaired awareness and reduced pain perception. Altered regional cerebral perfusion patterns during sleepwalkers' resting-state wakefulness may be related to daytime functional anomalies in this population.
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Affiliation(s)
- Marie-Ève Desjardins
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.,Department of Psychology, Université de Montréal, Montreal, Canada
| | - Andrée-Ann Baril
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.,Faculty of Medicine, Université de Montréal, Montreal, Canada
| | - Jean-Paul Soucy
- PERFORM Centre, Concordia University, Montreal, Canada.,McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, Montreal, Canada
| | - Thien Thanh Dang-Vu
- PERFORM Centre, Concordia University, Montreal, Canada.,Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal and Department of Neurosciences, Université de Montréal, Montreal, Canada
| | - Alex Desautels
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.,Faculty of Medicine, Université de Montréal, Montreal, Canada
| | - Dominique Petit
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.,Faculty of Medicine, Université de Montréal, Montreal, Canada
| | - Jacques Montplaisir
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.,Faculty of Medicine, Université de Montréal, Montreal, Canada
| | - Antonio Zadra
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.,Department of Psychology, Université de Montréal, Montreal, Canada
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Boucetta S, Montplaisir J, Zadra A, Lachapelle F, Soucy JP, Gravel P, Dang-Vu TT. Altered Regional Cerebral Blood Flow in Idiopathic Hypersomnia. Sleep 2018; 40:4092855. [PMID: 28958044 DOI: 10.1093/sleep/zsx140] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Study Objectives Idiopathic hypersomnia is characterized by excessive daytime sleepiness, despite normal or long sleep time. Its pathophysiological mechanisms remain unclear. This pilot study aims at characterizing the neural correlates of idiopathic hypersomnia using single photon emission computed tomography. Methods Thirteen participants with idiopathic hypersomnia and 16 healthy controls were scanned during resting wakefulness using a high-resolution single photon emission computed tomography scanner with 99mTc-ethyl cysteinate dimer to assess cerebral blood flow. The main analysis compared regional cerebral blood flow distribution between the two groups. Exploratory correlations between regional cerebral blood flow and clinical characteristics evaluated the functional correlates of those brain perfusion patterns. Significance was set at p < .05 after correction for multiple comparisons. Results Participants with idiopathic hypersomnia showed regional cerebral blood flow decreases in medial prefrontal cortex and posterior cingulate cortex and putamen, as well as increases in amygdala and temporo-occipital cortices. Lower regional cerebral blood flow in the medial prefrontal cortex was associated with higher daytime sleepiness. Conclusions These preliminary findings suggest that idiopathic hypersomnia is characterized by functional alterations in brain areas involved in the modulation of vigilance states, which may contribute to the daytime symptoms of this condition. The distribution of regional cerebral blood flow changes was reminiscent of the patterns associated with normal non-rapid-eye-movement sleep, suggesting the possible presence of incomplete sleep-wake transitions. These abnormalities were strikingly distinct from those induced by acute sleep deprivation, suggesting that the patterns seen here might reflect a trait associated with idiopathic hypersomnia rather than a non-specific state of sleepiness.
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Affiliation(s)
- Soufiane Boucetta
- Center for Studies in Behavioral Neurobiology and Department of Exercise Science, Concordia University, Montreal, Quebec, Canada.,PERFORM Centre, Concordia University, Montreal, Quebec, Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, Quebec, Canada.,Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada
| | - Jacques Montplaisir
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada.,Department of Psychiatry, Université de Montréal, Montreal, Quebec, Canada
| | - Antonio Zadra
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada.,Department of Psychology, Université de Montréal, Montreal, Quebec, Canada
| | - Francis Lachapelle
- Center for Studies in Behavioral Neurobiology and Department of Exercise Science, Concordia University, Montreal, Quebec, Canada.,PERFORM Centre, Concordia University, Montreal, Quebec, Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, Quebec, Canada
| | - Jean-Paul Soucy
- PERFORM Centre, Concordia University, Montreal, Quebec, Canada.,McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
| | - Paul Gravel
- PERFORM Centre, Concordia University, Montreal, Quebec, Canada.,McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
| | - Thien Thanh Dang-Vu
- Center for Studies in Behavioral Neurobiology and Department of Exercise Science, Concordia University, Montreal, Quebec, Canada.,PERFORM Centre, Concordia University, Montreal, Quebec, Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, Quebec, Canada.,Department of Neurosciences, Université de Montréal, Montreal, Quebec, Canada
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Dang-Vu TT, Hatch B, Salimi A, Mograss M, Boucetta S, O'Byrne J, Brandewinder M, Berthomier C, Gouin JP. Sleep spindles may predict response to cognitive-behavioral therapy for chronic insomnia. Sleep Med 2017; 39:54-61. [PMID: 29157588 DOI: 10.1016/j.sleep.2017.08.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 07/26/2017] [Accepted: 08/09/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND While cognitive-behavioral therapy for insomnia constitutes the first-line treatment for chronic insomnia, only few reports have investigated how sleep architecture relates to response to this treatment. In this pilot study, we aimed to determine whether pre-treatment sleep spindle density predicts treatment response to cognitive-behavioral therapy for insomnia. METHODS Twenty-four participants with chronic primary insomnia participated in a 6-week cognitive-behavioral therapy for insomnia performed in groups of 4-6 participants. Treatment response was assessed using the Pittsburgh Sleep Quality Index and the Insomnia Severity Index measured at pre- and post-treatment, and at 3- and 12-months' follow-up assessments. Secondary outcome measures were extracted from sleep diaries over 7 days and overnight polysomnography, obtained at pre- and post-treatment. Spindle density during stage N2-N3 sleep was extracted from polysomnography at pre-treatment. Hierarchical linear modeling analysis assessed whether sleep spindle density predicted response to cognitive-behavioral therapy. RESULTS After adjusting for age, sex, and education level, lower spindle density at pre-treatment predicted poorer response over the 12-month follow-up, as reflected by a smaller reduction in Pittsburgh Sleep Quality Index over time. Reduced spindle density also predicted lower improvements in sleep diary sleep efficiency and wake after sleep onset immediately after treatment. There were no significant associations between spindle density and changes in the Insomnia Severity Index or polysomnography variables over time. CONCLUSION These preliminary results suggest that inter-individual differences in sleep spindle density in insomnia may represent an endogenous biomarker predicting responsiveness to cognitive-behavioral therapy. Insomnia with altered spindle activity might constitute an insomnia subtype characterized by a neurophysiological vulnerability to sleep disruption associated with impaired responsiveness to cognitive-behavioral therapy.
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Affiliation(s)
- Thien Thanh Dang-Vu
- Department of Exercise Science, Concordia University, Montréal, QC, Canada; Department of Psychology, Concordia University, Montréal, QC, Canada; Center for Studies in Behavioral Neurobiology, Concordia University, Montréal, QC, Canada; PERFORM Center, Concordia University, Montréal, QC, Canada; Center for Clinical Research in Health, Concordia University, Montréal, QC, Canada; Centre de Recherches de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada; Department of Neurosciences, Université de Montréal, Montréal, QC, Canada.
| | - Benjamin Hatch
- Department of Psychology, Concordia University, Montréal, QC, Canada; Center for Studies in Behavioral Neurobiology, Concordia University, Montréal, QC, Canada; PERFORM Center, Concordia University, Montréal, QC, Canada
| | - Ali Salimi
- Department of Exercise Science, Concordia University, Montréal, QC, Canada; Center for Studies in Behavioral Neurobiology, Concordia University, Montréal, QC, Canada; PERFORM Center, Concordia University, Montréal, QC, Canada; Centre de Recherches de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada
| | - Melodee Mograss
- Department of Exercise Science, Concordia University, Montréal, QC, Canada; Department of Psychology, Concordia University, Montréal, QC, Canada; PERFORM Center, Concordia University, Montréal, QC, Canada; Centre de Recherches de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada
| | - Soufiane Boucetta
- Department of Exercise Science, Concordia University, Montréal, QC, Canada; Center for Studies in Behavioral Neurobiology, Concordia University, Montréal, QC, Canada; PERFORM Center, Concordia University, Montréal, QC, Canada; Centre de Recherches de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada
| | - Jordan O'Byrne
- Department of Exercise Science, Concordia University, Montréal, QC, Canada; Center for Studies in Behavioral Neurobiology, Concordia University, Montréal, QC, Canada; PERFORM Center, Concordia University, Montréal, QC, Canada; Centre de Recherches de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada
| | | | | | - Jean-Philippe Gouin
- Department of Psychology, Concordia University, Montréal, QC, Canada; PERFORM Center, Concordia University, Montréal, QC, Canada; Center for Clinical Research in Health, Concordia University, Montréal, QC, Canada
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Abstract
PURPOSE OF REVIEW Little is known about the presence of parasomnias such as nightmare disorder, sleep paralysis, REM sleep behavior disorder (RBD), and sleep-related eating disorders (SRED) in people with mental illness. A predominant view suggests that psychotropic medications might be contributing to parasomnias. This article summarizes knowledge regarding the relationships between psychiatric disorders and parasomnias, and possible confounds. A systematic search of the literature in the past 10 years identified 19 articles. RECENT FINDINGS There were significantly elevated rates of parasomnias in psychiatric disorders (average prevalence of nightmares was 38.9%, sleep paralysis 22.3%, SRED 9.9%, sleepwalking 8.5%, and RBD 3.8%). Medication usage was only one of many risk factors (other sleep disorders, medical comorbidities, and substance abuse) which were associated with parasomnias. A strong association exists between mental illness and parasomnias which is not fully explained by medications. Prospective longitudinal studies are needed to develop a better understanding of the unique and shared variance from multiple risk factors.
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Affiliation(s)
- Flavie Waters
- School of Psychological Science, The University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6009, Australia. .,Clinical Research Centre, Graylands Hospital, North Metropolitan Health Service-Mental Health, Perth, Western Australia, Australia.
| | - Umberto Moretto
- Psychiatric Unit I Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, Pisa, Italy.,Center for Studies in Behavioral Neurobiology & PERFORM Center, Department of Exercise Science, Concordia University, 7141 Sherbrooke St. West, SP 165.27, Montreal, H4B 1R6, Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal (CRIUGM), 4545 chemin Queen-Mary, M5815, Montreal, H3W 1W5, Canada
| | - Thien Thanh Dang-Vu
- Center for Studies in Behavioral Neurobiology & PERFORM Center, Department of Exercise Science, Concordia University, 7141 Sherbrooke St. West, SP 165.27, Montreal, H4B 1R6, Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal (CRIUGM), 4545 chemin Queen-Mary, M5815, Montreal, H3W 1W5, Canada
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Waters F, Blom JD, Dang-Vu TT, Cheyne AJ, Alderson-Day B, Woodruff P, Collerton D. What Is the Link Between Hallucinations, Dreams, and Hypnagogic-Hypnopompic Experiences? Schizophr Bull 2016; 42:1098-109. [PMID: 27358492 PMCID: PMC4988750 DOI: 10.1093/schbul/sbw076] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
By definition, hallucinations occur only in the full waking state. Yet similarities to sleep-related experiences such as hypnagogic and hypnopompic hallucinations, dreams and parasomnias, have been noted since antiquity. These observations have prompted researchers to suggest a common aetiology for these phenomena based on the neurobiology of rapid eye movement (REM) sleep. With our recent understanding of hallucinations in different population groups and at the neurobiological, cognitive and interpersonal levels, it is now possible to draw comparisons between the 2 sets of experiences as never before. In the current article, we make detailed comparisons between sleep-related experiences and hallucinations in Parkinson's disease, schizophrenia and eye disease, at the levels of phenomenology (content, sensory modalities involved, perceptual attributes) and of brain function (brain activations, resting-state networks, neurotransmitter action). Findings show that sleep-related experiences share considerable overlap with hallucinations at the level of subjective descriptions and underlying brain mechanisms. Key differences remain however: (1) Sleep-related perceptions are immersive and largely cut off from reality, whereas hallucinations are discrete and overlaid on veridical perceptions; and (2) Sleep-related perceptions involve only a subset of neural networks implicated in hallucinations, reflecting perceptual signals processed in a functionally and cognitively closed-loop circuit. In summary, both phenomena are non-veridical perceptions that share some phenomenological and neural similarities, but insufficient evidence exists to fully support the notion that the majority of hallucinations depend on REM processes or REM intrusions into waking consciousness.
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Affiliation(s)
- Flavie Waters
- Clinical Research Centre, Graylands Hospital, North Metro Health Service Mental Health, Perth, Australia; School of Psychiatry and Clinical Neurosciences, The University of Western Australia, Perth, Australia;
| | | | - Thien Thanh Dang-Vu
- Center for Studies in Behavioral Neurobiology, PERFORM Center and Department of Exercise Science, Concordia University; and Centre de Recherches de l’Institut Universitaire de Gériatrie de Montréal and Department of Neurosciences, University of Montreal, Montreal, QC, Canada
| | - Allan J. Cheyne
- Department of Psychology, University of Waterloo, Waterloo, ON, Canada
| | | | - Peter Woodruff
- University of Sheffield, UK, Hamad Medical Corporation, Doha, Qatar
| | - Daniel Collerton
- Clinical Psychology, Northumberland, Tyne and Wear NHS Foundation Trust, and Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
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Boucetta S, Salimi A, Dadar M, Jones BE, Collins DL, Dang-Vu TT. Structural Brain Alterations Associated with Rapid Eye Movement Sleep Behavior Disorder in Parkinson's Disease. Sci Rep 2016; 6:26782. [PMID: 27245317 PMCID: PMC4887790 DOI: 10.1038/srep26782] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 05/09/2016] [Indexed: 01/20/2023] Open
Abstract
Characterized by dream-enactment motor manifestations arising from rapid eye movement (REM) sleep, REM sleep behavior disorder (RBD) is frequently encountered in Parkinson’s disease (PD). Yet the specific neurostructural changes associated with RBD in PD patients remain to be revealed by neuroimaging. Here we identified such neurostructural alterations by comparing large samples of magnetic resonance imaging (MRI) scans in 69 PD patients with probable RBD, 240 patients without RBD and 138 healthy controls, using deformation-based morphometry (p < 0.05 corrected for multiple comparisons). All data were extracted from the Parkinson’s Progression Markers Initiative. PD patients with probable RBD showed smaller volumes than patients without RBD and than healthy controls in the pontomesencephalic tegmentum, medullary reticular formation, hypothalamus, thalamus, putamen, amygdala and anterior cingulate cortex. These results demonstrate that RBD is associated with a prominent loss of volume in the pontomesencephalic tegmentum, where cholinergic, GABAergic and glutamatergic neurons are located and implicated in the promotion of REM sleep and muscle atonia. It is additionally associated with more widespread atrophy in other subcortical and cortical regions whose loss also likely contributes to the altered regulation of sleep-wake states and motor activity underlying RBD in PD patients.
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Affiliation(s)
- Soufiane Boucetta
- Center for Studies in Behavioural Neurobiology, PERFORM Center and Dpt of Exercise Science, Concordia University, 7141 Sherbrooke St. West, Montréal, Québec, H4B 1R6 Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal and Dpt of Neurosciences, Université de Montréal, 4545 Chemin Queen Mary, Montréal, Québec, H3W 1W4 Canada
| | - Ali Salimi
- Center for Studies in Behavioural Neurobiology, PERFORM Center and Dpt of Exercise Science, Concordia University, 7141 Sherbrooke St. West, Montréal, Québec, H4B 1R6 Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal and Dpt of Neurosciences, Université de Montréal, 4545 Chemin Queen Mary, Montréal, Québec, H3W 1W4 Canada
| | - Mahsa Dadar
- Montreal Neurological Institute, McGill University, 3801 University Street, Montréal, Québec, H3A 2B4 Canada
| | - Barbara E Jones
- Montreal Neurological Institute, McGill University, 3801 University Street, Montréal, Québec, H3A 2B4 Canada
| | - D Louis Collins
- Montreal Neurological Institute, McGill University, 3801 University Street, Montréal, Québec, H3A 2B4 Canada
| | - Thien Thanh Dang-Vu
- Center for Studies in Behavioural Neurobiology, PERFORM Center and Dpt of Exercise Science, Concordia University, 7141 Sherbrooke St. West, Montréal, Québec, H4B 1R6 Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal and Dpt of Neurosciences, Université de Montréal, 4545 Chemin Queen Mary, Montréal, Québec, H3W 1W4 Canada
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Suh S, Kim H, Dang-Vu TT, Joo E, Shin C. Cortical Thinning and Altered Cortico-Cortical Structural Covariance of the Default Mode Network in Patients with Persistent Insomnia Symptoms. Sleep 2016; 39:161-71. [PMID: 26414892 DOI: 10.5665/sleep.5340] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 07/18/2015] [Indexed: 01/11/2023] Open
Abstract
STUDY OBJECTIVES Recent studies have suggested that structural abnormalities in insomnia may be linked with alterations in the default-mode network (DMN). This study compared cortical thickness and structural connectivity linked to the DMN in patients with persistent insomnia (PI) and good sleepers (GS). METHODS The current study used a clinical subsample from the longitudinal community-based Korean Genome and Epidemiology Study (KoGES). Cortical thickness and structural connectivity linked to the DMN in patients with persistent insomnia symptoms (PIS; n = 57) were compared to good sleepers (GS; n = 40). All participants underwent MRI acquisition. Based on literature review, we selected cortical regions corresponding to the DMN. A seed-based structural covariance analysis measured cortical thickness correlation between each seed region of the DMN and other cortical areas. Association of cortical thickness and covariance with sleep quality and neuropsychological assessments were further assessed. RESULTS Compared to GS, cortical thinning was found in PIS in the anterior cingulate cortex, precentral cortex, and lateral prefrontal cortex. Decreased structural connectivity between anterior and posterior regions of the DMN was observed in the PIS group. Decreased structural covariance within the DMN was associated with higher PSQI scores. Cortical thinning in the lateral frontal lobe was related to poor performance in executive function in PIS. CONCLUSION Disrupted structural covariance network in PIS might reflect malfunctioning of antero-posterior disconnection of the DMN during the wake to sleep transition that is commonly found during normal sleep. The observed structural network alteration may further implicate commonly observed sustained sleep difficulties and cognitive impairment in insomnia.
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Affiliation(s)
- Sooyeon Suh
- Sungshin Women's University, Department of Psychology, Seoul, Korea.,Stanford University, Department of Psychiatry, Palo Alto, CA
| | - Hosung Kim
- University of California San Francisco, Department of Radiology and Biomedical Imaging, San Francisco, CA
| | - Thien Thanh Dang-Vu
- Center for Studies in Behavioral Neurobiology, PERFORM Center & Department of Exercise Science, Concordia University, Montreal, Canada.,Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal & Department of Neurosciences, University of Montreal, Montreal, Canada
| | - Eunyeon Joo
- Samsung Medical Center, Department of Neurology, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Chol Shin
- Korea University Ansan Hospital, Institute of Human Genomic Study, Seoul, Korea.,Korea University Ansan Hospital, Department of Internal Medicine, Seoul, Korea
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Dang-Vu TT, Zadra A, Labelle MA, Petit D, Soucy JP, Montplaisir J. Sleep Deprivation Reveals Altered Brain Perfusion Patterns in Somnambulism. PLoS One 2015; 10:e0133474. [PMID: 26241047 PMCID: PMC4524685 DOI: 10.1371/journal.pone.0133474] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 06/28/2015] [Indexed: 12/14/2022] Open
Abstract
Background Despite its high prevalence, relatively little is known about the pathophysiology of somnambulism. Increasing evidence indicates that somnambulism is associated with functional abnormalities during wakefulness and that sleep deprivation constitutes an important drive that facilitates sleepwalking in predisposed patients. Here, we studied the neural mechanisms associated with somnambulism using Single Photon Emission Computed Tomography (SPECT) with 99mTc-Ethylene Cysteinate Dimer (ECD), during wakefulness and after sleep deprivation. Methods Ten adult sleepwalkers and twelve controls with normal sleep were scanned using 99mTc-ECD SPECT in morning wakefulness after a full night of sleep. Eight of the sleepwalkers and nine of the controls were also scanned during wakefulness after a night of total sleep deprivation. Between-group comparisons of regional cerebral blood flow (rCBF) were performed to characterize brain activity patterns during wakefulness in sleepwalkers. Results During wakefulness following a night of total sleep deprivation, rCBF was decreased bilaterally in the inferior temporal gyrus in sleepwalkers compared to controls. Conclusions Functional neural abnormalities can be observed during wakefulness in somnambulism, particularly after sleep deprivation and in the inferior temporal cortex. Sleep deprivation thus not only facilitates the occurrence of sleepwalking episodes, but also uncovers patterns of neural dysfunction that characterize sleepwalkers during wakefulness.
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Affiliation(s)
- Thien Thanh Dang-Vu
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montréal, Quebec, Canada
- Center for Studies in Behavioral Neurobiology, PERFORM Center & Department of Exercise Science, Concordia University, Montréal, Quebec, Canada
- Centre de Recherche de l’Institut Universitaire de Gériatrie de Montréal and Department of Neurosciences, Université de Montréal, Montréal, Quebec, Canada
| | - Antonio Zadra
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montréal, Quebec, Canada
- Department of Psychology, Université de Montréal, Montréal, Quebec, Canada
- * E-mail: (AZ); (JM)
| | | | - Dominique Petit
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montréal, Quebec, Canada
| | - Jean-Paul Soucy
- Montreal Neurological Institute, McGill University, Montréal, Quebec, Canada
- Department of Nuclear Medicine, Centre Hospitalier de l’Université de Montréal, Montréal, Québec, Canada
| | - Jacques Montplaisir
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montréal, Quebec, Canada
- Department of Psychiatry and Canada Research Chair in Sleep Medicine, Université de Montréal, Montréal, Quebec, Canada
- * E-mail: (AZ); (JM)
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39
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Hudon C, St-Pierre C, Fouquet C, Ansaldo AI, Bruneau MA, Dang-Vu TT, Gagnon JF, Grenier S, Lorrain D, Phillips N, Poulin S, Rajah N, Belleville S. P3‐127: Predicting cognitive decline and dementia in older adults using neuropsychiatric measures: A systematic review and meta‐analysis. Alzheimers Dement 2015. [DOI: 10.1016/j.jalz.2015.06.995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Carol Hudon
- Universite LavalQuebecQCCanada
- Institut Universitaire en Santé Mentale de QuébecQuébecQCCanada
| | | | - Celine Fouquet
- Institut Universitaire de Gériatrie de MontréalMontréalQCCanada
| | - Ana Inés Ansaldo
- Institut Universitaire de Gériatrie de MontréalMontréalQCCanada
- Université de MontréalMontréalQCCanada
| | - Marie-Andrée Bruneau
- Institut Universitaire de Gériatrie de MontréalMontréalQCCanada
- Université de MontréalMontréalQCCanada
| | - Thien Thanh Dang-Vu
- Institut Universitaire de Gériatrie de MontréalMontréalQCCanada
- Concordia UniversityMontréalQCCanada
| | - Jean-François Gagnon
- Université du Québec à MontréalMontréalQCCanada
- Hôpital du Sacré-Coeur de MontréalMontrealQCCanada
| | - Sébastien Grenier
- Institut Universitaire de Gériatrie de MontréalMontréalQCCanada
- Université de MontréalMontréalQCCanada
| | | | | | - Stéphane Poulin
- Clinique Interdisciplinaire de Mémoire du CHU de QuébecQuébecQCCanada
| | | | - Sylvie Belleville
- Institut Universitaire de Gériatrie de MontréalMontréalQCCanada
- Université de MontréalMontréalQCCanada
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40
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Labelle MA, Dang-Vu TT, Petit D, Desautels A, Montplaisir J, Zadra A. Sleep deprivation impairs inhibitory control during wakefulness in adult sleepwalkers. J Sleep Res 2015; 24:658-65. [PMID: 26087833 DOI: 10.1111/jsr.12315] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Accepted: 05/16/2015] [Indexed: 11/29/2022]
Abstract
Sleepwalkers often complain of excessive daytime somnolence. Although excessive daytime somnolence has been associated with cognitive impairment in several sleep disorders, very few data exist concerning sleepwalking. This study aimed to investigate daytime cognitive functioning in adults diagnosed with idiopathic sleepwalking. Fifteen sleepwalkers and 15 matched controls were administered the Continuous Performance Test and Stroop Colour-Word Test in the morning after an overnight polysomnographic assessment. Participants were tested a week later on the same neuropsychological battery, but after 25 h of sleep deprivation, a procedure known to precipitate sleepwalking episodes during subsequent recovery sleep. There were no significant differences between sleepwalkers and controls on any of the cognitive tests administered under normal waking conditions. Testing following sleep deprivation revealed significant impairment in sleepwalkers' executive functions related to inhibitory control, as they made more errors than controls on the Stroop Colour-Word Test and more commission errors on the Continuous Performance Test. Sleepwalkers' scores on measures of executive functions were not associated with self-reported sleepiness or indices of sleep fragmentation from baseline polysomnographic recordings. The results support the idea that sleepwalking involves daytime consequences and suggest that these may also include cognitive impairments in the form of disrupted inhibitory control following sleep deprivation. These disruptions may represent a daytime expression of sleepwalking's pathophysiological mechanisms.
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Affiliation(s)
- Marc-Antoine Labelle
- Department of Psychology, Université de Montréal, Montreal, Canada.,Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur, Montreal, Canada
| | - Thien Thanh Dang-Vu
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur, Montreal, Canada.,Center for Studies in Behavioral Neurobiology, PERFORM Center and Department of Exercise Science, Concordia University, Montreal, Canada
| | - Dominique Petit
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur, Montreal, Canada
| | - Alex Desautels
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur, Montreal, Canada.,Department of Neurosciences, Université de Montréal and Neurology Service, Hôpital du Sacré-Coeur, Montreal, Canada
| | - Jacques Montplaisir
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur, Montreal, Canada.,Department of Psychiatry, Université de Montréal, Montreal, Canada
| | - Antonio Zadra
- Department of Psychology, Université de Montréal, Montreal, Canada.,Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur, Montreal, Canada
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Dang-Vu TT, Salimi A, Boucetta S, Wenzel K, O'Byrne J, Brandewinder M, Berthomier C, Gouin JP. Sleep spindles predict stress-related increases in sleep disturbances. Front Hum Neurosci 2015; 9:68. [PMID: 25713529 PMCID: PMC4322643 DOI: 10.3389/fnhum.2015.00068] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Accepted: 01/27/2015] [Indexed: 11/30/2022] Open
Abstract
Background and Aim: Predisposing factors place certain individuals at higher risk for insomnia, especially in the presence of precipitating conditions such as stressful life events. Sleep spindles have been shown to play an important role in the preservation of sleep continuity. Lower spindle density might thus constitute an objective predisposing factor for sleep reactivity to stress. The aim of this study was therefore to evaluate the relationship between baseline sleep spindle density and the prospective change in insomnia symptoms in response to a standardized academic stressor. Methods: Twelve healthy students had a polysomnography recording during a period of lower stress at the beginning of the academic semester, along with an assessment of insomnia complaints using the insomnia severity index (ISI). They completed a second ISI assessment at the end of the semester, a period coinciding with the week prior to final examinations and thus higher stress. Spindle density, amplitude, duration, and frequency, as well as sigma power were computed from C4–O2 electroencephalography derivation during stages N2–N3 of non-rapid-eye-movement (NREM) sleep, across the whole night and for each NREM sleep period. To test for the relationship between spindle density and changes in insomnia symptoms in response to academic stress, spindle measurements at baseline were correlated with changes in ISI across the academic semester. Results: Spindle density (as well as spindle amplitude and sigma power), particularly during the first NREM sleep period, negatively correlated with changes in ISI (p < 0.05). Conclusion: Lower spindle activity, especially at the beginning of the night, prospectively predicted larger increases in insomnia symptoms in response to stress. This result indicates that individual differences in sleep spindle activity contribute to the differential vulnerability to sleep disturbances in the face of precipitating factors.
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Affiliation(s)
- Thien Thanh Dang-Vu
- Department of Exercise Science, Concordia University , Montréal, QC , Canada ; Center for Studies in Behavioral Neurobiology, Concordia University , Montréal, QC , Canada ; PERFORM Center, Concordia University , Montréal, QC , Canada ; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal , Montréal, QC , Canada ; Center for Clinical Research in Health, Concordia University , Montréal, QC , Canada ; Department of Psychology, Concordia University , Montréal, QC , Canada
| | - Ali Salimi
- Department of Exercise Science, Concordia University , Montréal, QC , Canada ; Center for Studies in Behavioral Neurobiology, Concordia University , Montréal, QC , Canada ; PERFORM Center, Concordia University , Montréal, QC , Canada ; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal , Montréal, QC , Canada
| | - Soufiane Boucetta
- Department of Exercise Science, Concordia University , Montréal, QC , Canada ; Center for Studies in Behavioral Neurobiology, Concordia University , Montréal, QC , Canada ; PERFORM Center, Concordia University , Montréal, QC , Canada ; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal , Montréal, QC , Canada
| | - Kerstin Wenzel
- Department of Psychology, Concordia University , Montréal, QC , Canada
| | - Jordan O'Byrne
- Department of Exercise Science, Concordia University , Montréal, QC , Canada ; Center for Studies in Behavioral Neurobiology, Concordia University , Montréal, QC , Canada ; PERFORM Center, Concordia University , Montréal, QC , Canada ; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal , Montréal, QC , Canada
| | | | | | - Jean-Philippe Gouin
- PERFORM Center, Concordia University , Montréal, QC , Canada ; Center for Clinical Research in Health, Concordia University , Montréal, QC , Canada ; Department of Psychology, Concordia University , Montréal, QC , Canada
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Abstract
State-of-the-art neuroimaging techniques have accelerated progress in the study and understanding of sleep in humans. Neuroimaging studies in primary insomnia remain relatively few, considering the important prevalence of this disorder in the general population. This review examines the contribution of functional and structural neuroimaging to our current understanding of primary insomnia. Functional studies during sleep provided support for the hyperarousal theory of insomnia. Functional neuroimaging also revealed abnormalities in cognitive and emotional processing in primary insomnia. Results from structural studies suggest neuroanatomical alterations in primary insomnia, mostly in the hippocampus, anterior cingulate cortex and orbitofrontal cortex. However, these results are not well replicated across studies. A few magnetic resonance spectroscopy studies revealed abnormalities in neurotransmitter concentrations and bioenergetics in primary insomnia. The inconsistencies among neuroimaging findings on insomnia are likely due to clinical heterogeneity, differences in imaging and overall diversity of techniques and designs employed. Larger samples, replication, as well as innovative methodologies are necessary for the progression of this perplexing, yet promising area of research.
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Affiliation(s)
- J N O'Byrne
- Department of Exercise Science, Concordia University, 7141 Sherbrooke St W, Montreal, Quebec, H4B 1R6 Canada; Center for Studies in Behavioral Neurobiology, Concordia University, 7141 Sherbrooke St W, Montreal, Quebec, H4B 1R6 Canada
| | - M Berman Rosa
- Department of Psychology, Concordia University, 7141 Sherbrooke St W, Montreal, Quebec, H4B 1R6 Canada
| | - J-P Gouin
- Department of Psychology, Concordia University, 7141 Sherbrooke St W, Montreal, Quebec, H4B 1R6 Canada
| | - T T Dang-Vu
- Department of Exercise Science, Concordia University, 7141 Sherbrooke St W, Montreal, Quebec, H4B 1R6 Canada; Center for Studies in Behavioral Neurobiology, Concordia University, 7141 Sherbrooke St W, Montreal, Quebec, H4B 1R6 Canada; Institut Universitaire de Gériatrie de Montréal, Université de Montréal, 4565, chemin Queen-Mary, Montreal, Quebec, H3W 1W5 Canada.
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Abstract
Various brain imaging techniques have been used to study narcolepsy with cataplexy. Anatomical data with magnetic resonance imaging have characterized specific alterations in grey and white matter and their potential implications on disease severity. Functional neuroimaging studies have described changes in brain perfusion or glucose metabolism during resting wakefulness, as well as brain responses to emotional stimulation in narcoleptic patients. These different imaging modalities provide evidence for structural and functional abnormalities compatible with a deficit in the hypocretinergic system. They also indicate the involvement of other neural structures, such as the amygdala, nucleus accumbens, midbrain, thalamus, hippocampus, and fronto-temporal cortical areas. This article reviews the contribution of neuroimaging to the pathophysiology of narcolepsy with cataplexy, focusing on the most recent developments.
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Affiliation(s)
- Thien Thanh Dang-Vu
- Department of Exercise Science, Concordia University, 7141 Sherbrooke St W, Room SP 165.27, Montréal, Québec, H4B 1R6, Canada.
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Abstract
Recent studies in sleep and dreaming have described an activation of emotional and reward systems, as well as the processing of internal information during these states. Specifically, increased activity in the amygdala and across mesolimbic dopaminergic regions during REM sleep is likely to promote the consolidation of memory traces with high emotional/motivational value. Moreover, coordinated hippocampal-striatal replay during NREM sleep may contribute to the selective strengthening of memories for important events. In this review, we suggest that, via the activation of emotional/motivational circuits, sleep and dreaming may offer a neurobehavioral substrate for the offline reprocessing of emotions, associative learning, and exploratory behaviors, resulting in improved memory organization, waking emotion regulation, social skills, and creativity. Dysregulation of such motivational/emotional processes due to sleep disturbances (e.g., insomnia, sleep deprivation) would predispose to reward-related disorders, such as mood disorders, increased risk-taking and compulsive behaviors, and may have major health implications, especially in vulnerable populations.
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Affiliation(s)
- L Perogamvros
- Sleep Laboratory, Division of Neuropsychiatry, Department of Psychiatry, University Hospitals of Geneva Geneva, Switzerland ; Department of Neuroscience, University of Geneva Geneva, Switzerland ; Swiss Center for Affective Sciences, University of Geneva Geneva, Switzerland
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Affiliation(s)
- Thien Thanh Dang-Vu
- Department of Exercise Science and Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, Canada
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Trajanovic NN, Dang-Vu TT. Should patients with idiopathic rapid eye movement sleep behavior disorder receive preventive therapy for a neurodegenerative disease? Sleep Med 2013; 14:380-1. [DOI: 10.1016/j.sleep.2013.02.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 02/01/2013] [Accepted: 02/06/2013] [Indexed: 11/27/2022]
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Dang-Vu TT, Gagnon JF, Vendette M, Soucy JP, Postuma RB, Montplaisir J. Hippocampal perfusion predicts impending neurodegeneration in REM sleep behavior disorder. Neurology 2012; 79:2302-6. [PMID: 23115214 DOI: 10.1212/wnl.0b013e318278b658] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVES Patients with idiopathic REM sleep behavior disorder (IRBD) are at risk for developing Parkinson disease (PD) and dementia with Lewy bodies (DLB). We aimed to identify functional brain imaging patterns predicting the emergence of PD and DLB in patients with IRBD, using SPECT with (99m)Tc-ethylene cysteinate dimer (ECD). METHODS Twenty patients with IRBD were scanned at baseline during wakefulness using (99m)Tc-ECD SPECT. After a follow-up of 3 years on average, patients were divided into 2 groups according to whether or not they developed defined neurodegenerative disease (PD, DLB). SPECT data analysis comparing regional cerebral blood flow (rCBF) between groups assessed whether specific brain perfusion patterns were associated with subsequent clinical evolution. Regression analysis between rCBF and clinical markers of neurodegeneration (motor, color vision, olfaction) looked for neural structures involved in this process. RESULTS Of the 20 patients with IRBD recruited for this study, 10 converted to PD or DLB during the follow-up. rCBF at baseline was increased in the hippocampus of patients who would later convert compared with those who would not (p < 0.05 corrected). Hippocampal perfusion was correlated with motor and color vision scores across all IRBD patients. CONCLUSIONS (99m)Tc-ECD SPECT identifies patients with IRBD at risk for conversion to other neurodegenerative disorders such as PD or DLB; disease progression in IRBD is predicted by abnormal perfusion in the hippocampus at baseline. Perfusion within this structure is correlated with clinical markers of neurodegeneration, further suggesting its involvement in the development of presumed synucleinopathies.
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Affiliation(s)
- Thien Thanh Dang-Vu
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Canada.
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Vendette M, Montplaisir J, Gosselin N, Soucy JP, Postuma RB, Dang-Vu TT, Gagnon JF. Brain perfusion anomalies in rapid eye movement sleep behavior disorder with mild cognitive impairment. Mov Disord 2012; 27:1255-61. [PMID: 22791632 DOI: 10.1002/mds.25034] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Revised: 03/29/2012] [Accepted: 04/08/2012] [Indexed: 12/14/2022] Open
Abstract
Rapid eye movement (REM) sleep behavior disorder is an important risk factor for Parkinson's disease and dementia with Lewy bodies. Approximately 50% of patients with REM sleep behavior disorder have mild cognitive impairment. Our objective was to investigate brain perfusion changes associated with mild cognitive impairment in REM sleep behavior disorder. Twenty patients with REM sleep behavior disorder, including 10 patients with mild cognitive impairment and 10 patients without mild cognitive impairment, and 20 healthy controls underwent a complete neuropsychological assessment and single-photon emission computerized tomography using (99mc) Tc-Ethylene Cysteinate Dimer. Compared with controls, both REM sleep behavior disorder groups had hypoperfusion in the frontal regions. In addition, patients with REM sleep behavior disorder and mild cognitive impairment showed cortical hypoperfusion in the occipital, temporal, and parietal regions compared with controls and patients with REM sleep behavior disorder without mild cognitive impairment. Both REM sleep behavior disorder groups had hyperperfusion in the right hippocampus and parahippocampal gyri. However, patients with REM sleep behavior disorder and mild cognitive impairment showed more pronounced anomalies in the right hippocampus and had increased perfusion in the putamen and the left paracentral gyrus. This study showed specific patterns of posterior cortical hypoperfusion and hyperperfusion in some brain areas in patients with REM sleep behavior disorder and mild cognitive impairment, similar to those found in Parkinson's disease dementia and dementia with Lewy bodies. This suggests the presence of an identifiable neuroimaging marker of synucleinopathy in REM sleep behavior disorder with mild cognitive impairment. © 2012 Movement Disorder Society.
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Affiliation(s)
- Mélanie Vendette
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montréal, Quebec, Canada
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Dang-Vu TT. Structural changes in the narcoleptic brain and their possible relevance for clinical severity. Sleep Med 2012; 13:775-6. [PMID: 22633057 DOI: 10.1016/j.sleep.2012.04.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Accepted: 04/13/2012] [Indexed: 10/28/2022]
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