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Zakiei A, Sadeghi-Bahmani D, Khazaie H, Lorestani Z, Sadeghi M, Korani D, Sahraei Z, Komasi S, Stanga Z, Brühl AB, Brand S. Associations between Sleep Disturbances, Personality Traits and Self-Regulation in a Sample of Healthy Adults. J Clin Med 2024; 13:2143. [PMID: 38610908 PMCID: PMC11012523 DOI: 10.3390/jcm13072143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 03/18/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
Background: Scientific evidence and everyday experience show that sleep disturbances and self-regulation as a proxy of stress reactivity are linked. Particular personality traits such as neuroticism, internalizing and externalizing problems are also associated with sleep disturbances. Here, we combined self-regulation and personality traits and associated these variables with subjective sleep disturbances. Methods: A total of 846 adults (mean age: 33.7 years; 78.7% females) completed questionnaires covering sleep disturbances, self-regulation and personality traits. Results: Higher scores for sleep disturbances were associated with higher scores for externalization, internalization, and instability and with lower scores for stability (all trait variables) and with poorer self-regulation (state variable). The regression model showed that higher scores for externalization and internalization (traits), and lower scores for self-regulation (state) predicted higher scores for sleep disturbance. Next, self-regulation had both a direct effect on sleep disturbance, and an indirect effect via personality traits. Conclusions: Sleep disturbances were related to both state (i.e., self-regulation) and trait (e.g., internalization and instability) dimensions. The current data analysis leapfrogs the state-trait dichotomy discussion and reconciles the state-and-trait approach in the prediction of poor sleep, though self-regulation appeared to have both direct and indirect effects on sleep disturbances.
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Affiliation(s)
- Ali Zakiei
- Sleep Disorders Research Center, Kermanshah University of Medical Sciences, Kermanshah 6719851115, Iran; (A.Z.); (H.K.); (S.K.)
| | - Dena Sadeghi-Bahmani
- Department of Psychology, Stanford University, Stanford, CA 94305, USA;
- Department of Epidemiology and Population Health, Stanford University, Stanford, CA 94305, USA
| | - Habibolah Khazaie
- Sleep Disorders Research Center, Kermanshah University of Medical Sciences, Kermanshah 6719851115, Iran; (A.Z.); (H.K.); (S.K.)
| | - Zeinab Lorestani
- Department of Clinical Psychology, Islamic Azad University of Kermanshah, Kermanshah 6719851115, Iran; (Z.L.); (M.S.); (D.K.); (Z.S.)
| | - Mohammad Sadeghi
- Department of Clinical Psychology, Islamic Azad University of Kermanshah, Kermanshah 6719851115, Iran; (Z.L.); (M.S.); (D.K.); (Z.S.)
| | - Dariuosh Korani
- Department of Clinical Psychology, Islamic Azad University of Kermanshah, Kermanshah 6719851115, Iran; (Z.L.); (M.S.); (D.K.); (Z.S.)
| | - Zeinab Sahraei
- Department of Clinical Psychology, Islamic Azad University of Kermanshah, Kermanshah 6719851115, Iran; (Z.L.); (M.S.); (D.K.); (Z.S.)
| | - Saeid Komasi
- Sleep Disorders Research Center, Kermanshah University of Medical Sciences, Kermanshah 6719851115, Iran; (A.Z.); (H.K.); (S.K.)
| | - Zeno Stanga
- Division of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, University Hospital, University of Berne, 3010 Berne, Switzerland;
- Centre of Competence for Military and Disaster Medicine, Swiss Armed Forces, 3008 Berne, Switzerland
| | - Annette B. Brühl
- Center for Affective, Stress and Sleep Disorders, Psychiatric Hospital of the University of Basel, 4002 Basel, Switzerland;
| | - Serge Brand
- Sleep Disorders Research Center, Kermanshah University of Medical Sciences, Kermanshah 6719851115, Iran; (A.Z.); (H.K.); (S.K.)
- Center for Affective, Stress and Sleep Disorders, Psychiatric Hospital of the University of Basel, 4002 Basel, Switzerland;
- Division of Sport Science and Psychosocial Health, Department of Sport, Exercise, and Health, Department of Medicine, University of Basel, 4052 Basel, Switzerland
- School of Medicine, Tehran University of Medical Sciences, Tehran 1417466191, Iran
- Substance Abuse Prevention Research Center, Kermanshah University of Medical Sciences, Kermanshah 6719851115, Iran
- Center for Disaster Psychiatry and Disaster Psychology, Centre of Competence for Military and Disaster Medicine, Swiss Armed Forces, 4002 Basel, Switzerland
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Pieroni I, Raffone A, Simione L. Sleep reactivity mediates the relationship between sensory-processing sensitivity and insomnia symptoms severity: A cross-sectional correlational study. Stress Health 2024; 40:e3297. [PMID: 37492995 DOI: 10.1002/smi.3297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 06/14/2023] [Accepted: 07/11/2023] [Indexed: 07/27/2023]
Abstract
Sensory-processing sensitivity (SPS) is a temperamental trait that describes individual differences in sensitivity to environmental stimuli. Previous studies have shown that highly sensitive individuals are more vulnerable to stress and to sleep-related difficulties. In light of this evidence, we hypothesized that SPS is associated with an increase in insomnia symptoms and that this correlation would be mediated by increased perceived stress and sleep reactivity. To test this hypothesis, we conducted a cross-sectional study on 358 adults who completed a survey that included self-report measures of sensitivity, perceived stress, sleep reactivity, and insomnia symptoms. Correlation analysis revealed that SPS was positively related to both stress-related and sleep-related variables. We then conducted a mediation analysis, which revealed that SPS was positively related to insomnia symptoms and that this relationship was fully mediated by sleep reactivity but not mediated at all by perceived stress. The current findings suggest that sleep reactivity may contribute to the development of insomnia symptoms in highly sensitive individuals. Therefore, these results suggests that sleep reactivity should be assessed in highly sensitive individuals and that it could be important to evaluate and further study this relationship.
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Affiliation(s)
- Ilde Pieroni
- Department of Psychology, "Sapienza," University of Rome, Rome, Italy
- Center of Sleep Medicine, Villa Serena Hospital, Città S. Angelo (Pescara), Italy
| | - Antonino Raffone
- Department of Psychology, "Sapienza," University of Rome, Rome, Italy
- School of Buddhist Studies, Philosophy, and Comparative Religions, Nalanda University, Rajgir, India
| | - Luca Simione
- Institute of Cognitive Sciences and Technologies, Rome, Italy
- Faculty of Interpreting and Translation, UNINT Università degli Studi Internazionali, Rome, Italy
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3
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Dressle RJ, Riemann D. Hyperarousal in insomnia disorder: Current evidence and potential mechanisms. J Sleep Res 2023; 32:e13928. [PMID: 37183177 DOI: 10.1111/jsr.13928] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/25/2023] [Accepted: 04/25/2023] [Indexed: 05/16/2023]
Abstract
Insomnia disorder is among the most frequent mental disorders, making research on its aetiology and pathophysiology particularly important. A unifying element of many aetiological and pathophysiological models is that they support or even centre on the role of some form of hyperarousal. In this theoretical review, we aim to summarise the current evidence on hyperarousal in insomnia. Hyperarousal is discussed as a state of relatively increased arousal in physiological, cortical and cognitive-emotional domains. Regarding physiological hyperarousal, there is no conclusive evidence for the involvement of autonomous variables such as heart rate and heart rate variability, whereas recent evidence points to a pathophysiological role of neuroendocrine variables. In addition, current literature supports a central involvement of cortical arousal, that is, high-frequency electroencephalographic activity. An increasingly important focus in the literature is on the role of other microstructural sleep parameters, especially the existence of microarousals during sleep. Beyond that, a broad range of evidence exists supporting the role of cognitive-emotional hyperarousal in the form of insomnia-related thought and worries, and their concomitant emotional symptoms. Besides being a state marker of insomnia, hyperarousal is considered crucial for the predisposition to insomnia and for the development of comorbid mental disorders. Thus, beyond presenting evidence from cross-sectional studies on markers of hyperarousal in insomnia, hypotheses about the mechanisms of hyperarousal are presented. Nevertheless, longitudinal studies are needed to further elucidate the mechanism of hyperarousal throughout the course of the disorder, and future studies should also focus on similarities and differences in hyperarousal across different diagnostic entities.
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Affiliation(s)
- Raphael J Dressle
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Dieter Riemann
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Faculty of Medicine, Center for Basics in NeuroModulation (NeuroModulBasics), University of Freiburg, Freiburg, Germany
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Akram U, Stevenson JC, Gardani M, Allen S, Johann AF. Personality and insomnia: A systematic review and narrative synthesis. J Sleep Res 2023; 32:e14031. [PMID: 37654128 DOI: 10.1111/jsr.14031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 08/14/2023] [Indexed: 09/02/2023]
Abstract
The inherent nature of personality serves as a predisposing, and possible maintaining, factor of insomnia. However, methodological differences limit the ability to draw causal conclusions regarding the specific traits involved in the aetiology of the disorder. This systematic review of the relationship between insomnia and personality provides a narrative synthesis of the literature to date. Here, we identified N = 76 studies meeting the inclusion/exclusion criteria. The outcomes reliably evidenced the experience of insomnia to be associated with personality traits that are typically considered to be negative or maladaptive in nature. More specifically, insomnia was related to neuroticism, introversion, perfectionistic doubts and concerns, elevated personal standards, negative affect, social inhibition and avoidance, hysteria, hypochondriasis, psychasthenia, impulsive behaviour, anger, hostility, and psychopathic tendencies, schizotypal and borderline traits, reduced conscientiousness and self-directedness, and negatively perceived perception of the self. Several studies examined the role that personality plays in predicting the treatment efficacy and adherence of CBTi. Moving forward, longitudinal research, methodological consistency, the mediating role of treatment outcomes and adherence, and clinical and population representative samples should be prioritised. Methodological strengths and limitations of the literature are discussed alongside the next steps that should be taken to advance our understanding of the literature.
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Affiliation(s)
- Umair Akram
- School of Psychology, University of Lincoln, Lincoln, UK
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | | | - Maria Gardani
- School of Health in Social Science, University of Edinburgh, Edinburgh, UK
| | - Sarah Allen
- Department of Psychology, Faculty of Health & Life Sciences, Northumbria University, Newcastle upon Tyne, UK
| | - Anna F Johann
- Department of Psychiatry and Psychotherapy, Medical Center, University of Freiburg, Freiburg, Germany
- Institute of Medical Psychology and Medical Sociology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
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Sørengaard TA, Langvik E, Olsen A, Saksvik-Lehouillier I. Predictors of insomnia symptoms in police employees: a longitudinal investigation and comparison of personality and psychosocial work factors. COGENT PSYCHOLOGY 2022. [DOI: 10.1080/23311908.2022.2137246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Affiliation(s)
| | - Eva Langvik
- Department of Psychology, Norwegian University of Science and Technology, Trondheim, Norway
| | - Alexander Olsen
- Department of Psychology, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Physical Medicine and Rehabilitation, St. Olav’s Hospital, Trondheim University Hospital, Norway
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Fabbri M, Beracci A, Martoni M. Insomnia, Time Perspective, and Personality Traits: A Cross-Sectional Study in a Non-Clinical Population. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:11018. [PMID: 36078734 PMCID: PMC9517905 DOI: 10.3390/ijerph191711018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/22/2022] [Accepted: 08/31/2022] [Indexed: 06/15/2023]
Abstract
Insomnia disorder is considered a public health problem and additional studies should investigate predisposing and perpetuating factors. This study examined the relationship between Big Five personality traits, time perspective, and insomnia. In a cross-sectional study, 400 participants (227 women; age range 18-74 years) were administered the Big Five Inventory-10 items, the Zimbardo Time Perspective Inventory, and the Insomnia Severity Index (ISI). A measure of chronotype was also included for control purposes. The results show that insomniacs reported lower scores for conscientiousness and extraversion, and for past-positive (PP) and future (F) perspectives, whereas they obtained higher scores for past-negative (PN) perspectives and deviation from a balanced time perspective. The correlations confirmed these findings, but negative correlations between present-hedonistic (PH) perspective and ISI score, and between emotional stability and ISI score, were also found. The mediation analyses showed that F played an indirect role in the relationship between consciousness and ISI score, PN had an indirect effect on the relationship between emotional stability and ISI or between extraversion and insomnia, and PH had an indirect effect on the relationship between extraversion and ISI score. The current outcomes shed light on the mechanisms which serve to mediate the relationship between insomnia and personality traits.
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Affiliation(s)
- Marco Fabbri
- Department of Psychology, University of Campania “Luigi Vanvitelli”, 81100 Caserta, Italy
| | - Alessia Beracci
- Department of Psychology, University of Granada, 18011 Granada, Spain
| | - Monica Martoni
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy
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Sakib AS, Mukta MSH, Huda FR, Islam AKMN, Islam T, Ali ME. Identifying Insomnia From Social Media Posts: Psycholinguistic Analyses of User Tweets. J Med Internet Res 2021; 23:e27613. [PMID: 34889758 PMCID: PMC8704110 DOI: 10.2196/27613] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 05/12/2021] [Accepted: 10/05/2021] [Indexed: 11/21/2022] Open
Abstract
Background Many people suffer from insomnia, a sleep disorder characterized by difficulty falling and staying asleep during the night. As social media have become a ubiquitous platform to share users’ thoughts, opinions, activities, and preferences with their friends and acquaintances, the shared content across these platforms can be used to diagnose different health problems, including insomnia. Only a few recent studies have examined the prediction of insomnia from Twitter data, and we found research gaps in predicting insomnia from word usage patterns and correlations between users’ insomnia and their Big 5 personality traits as derived from social media interactions. Objective The purpose of this study is to build an insomnia prediction model from users’ psycholinguistic patterns, including the elements of word usage, semantics, and their Big 5 personality traits as derived from tweets. Methods In this paper, we exploited both psycholinguistic and personality traits derived from tweets to identify insomnia patients. First, we built psycholinguistic profiles of the users from their word choices and the semantic relationships between the words of their tweets. We then determined the relationship between a users’ personality traits and insomnia. Finally, we built a double-weighted ensemble classification model to predict insomnia from both psycholinguistic and personality traits as derived from user tweets. Results Our classification model showed strong prediction potential (78.8%) to predict insomnia from tweets. As insomniacs are generally ill-tempered and feel more stress and mental exhaustion, we observed significant correlations of certain word usage patterns among them. They tend to use negative words (eg, “no,” “not,” “never”). Some people frequently use swear words (eg, “damn,” “piss,” “fuck”) with strong temperament. They also use anxious (eg, “worried,” “fearful,” “nervous”) and sad (eg, “crying,” “grief,” “sad”) words in their tweets. We also found that the users with high neuroticism and conscientiousness scores for the Big 5 personality traits likely have strong correlations with insomnia. Additionally, we observed that users with high conscientiousness scores have strong correlations with insomnia patterns, while negative correlation between extraversion and insomnia was also found. Conclusions Our model can help predict insomnia from users’ social media interactions. Thus, incorporating our model into a software system can help family members detect insomnia problems in individuals before they become worse. The software system can also help doctors to diagnose possible insomnia in patients.
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Affiliation(s)
| | | | | | | | - Tohedul Islam
- American International University-Bangladesh, Dhaka, Bangladesh
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8
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Holzinger B, Mayer L, Klösch G. Personality Traits and Insomnia Symptoms in Shift Workers. Front Psychol 2021; 12:689741. [PMID: 34531788 PMCID: PMC8438113 DOI: 10.3389/fpsyg.2021.689741] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 06/17/2021] [Indexed: 11/13/2022] Open
Abstract
The discrepancy between natural sleep-wake rhythm and actual sleep times in shift workers can cause sleep loss and negative daytime consequences. Irregular shift schedules do not follow a fixed structure and change frequently, which makes them particularly harmful and makes affected individuals more susceptible to insomnia. The present study compares insomnia symptoms of non-shift workers, regular shift workers, and irregular shift workers and takes into account the moderating role of the Big Five personality traits and levels of perfectionism. Employees of an Austrian railway company completed an online survey assessing shift schedules, sleep quality and duration, daytime sleepiness, and personality traits. A total of 305 participants, of whom 111 were non-shift workers, 60 regular shift workers, and 134 irregular shift workers, made up the final sample. Irregular shift workers achieved significantly worse scores than one or both of the other groups in time in bed, total sleep time, sleep efficiency, sleep duration, sleep quality, sleep latency, and the number of awakenings. However, the values of the irregular shifts workers are still in the average range and do not indicate clinical insomnia. Participants working regular shifts reported the best sleep quality and longest sleep duration and showed the least nocturnal awakenings, possibly due to higher conscientiousness- and lower neuroticism scores in this group. Agreeableness increased the effect of work schedule on total sleep time while decreasing its effect on the amount of sleep medication taken. Perfectionism increased the effect of work schedule on time in bed and total sleep time. Generalization of results is limited due to the high percentage of males in the sample and using self-report measures only.
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Affiliation(s)
- Brigitte Holzinger
- Institute for Consciousness and Dream Research, Vienna, Austria.,Sleep Coaching Programme, Medical University, Vienna, Austria
| | - Lucille Mayer
- Institute for Consciousness and Dream Research, Vienna, Austria
| | - Gerhard Klösch
- Institute for Consciousness and Dream Research, Vienna, Austria.,Sleep Coaching Programme, Medical University, Vienna, Austria.,Department of Neurology, Medical University of Vienna, Vienna, Austria
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10
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Wang D, Chen H, Chen D, Ma Z, Zhang Y, Wang T, Yu Q, Jiang J, Chen Z, Li F, Zhao L, Fan F, Liu X. Shift work disorder and related influential factors among shift workers in China. Sleep Med 2021; 81:451-456. [PMID: 33848945 DOI: 10.1016/j.sleep.2021.03.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 02/24/2021] [Accepted: 03/05/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Shift work may cause insomnia and sleepiness in individuals. The present study aimed to exam shift work disorder (SWD), and to investigate their associations with individual characteristics. METHODS A total of 1833 shift workers were assessed using the Pittsburg Sleep Quality Index, Epworth Sleepiness Scale (ESS), Composite Scale of Morningness (CSM), Circadian Type Inventory (CTI), Center for Epidemiologic Studies-Depression Scale (CES-D), Beck Anxiety Inventory (BAI) and other self-compiled socio-demographic questionnaires. RESULTS In the current sample, 17.1% shift workers have experienced insomnia symptoms, 20.9% were tested for daytime sleepiness, and 19.9% were categorized as having SWD. Logistics regressions revealed that history of mental disorders (OR = 2.04, 95% CI = 1.30-3.21), chronic physical illness (OR = 1.53, 95% CI = 1.17-1.99), CES-D scores (OR = 1.03, 95% CI = 1.02-1.05), BAI scores (OR = 1.04, 95% CI = 1.03-1.06), languid/vigorous tendencies (OR = 1.06, 95% CI = 1.03-1.10) were positively associated with the onset of SWD, while morningness (OR = 0.97, 95% CI = 0.94-0.99) decreased the odds of SWD onset. CONCLUSIONS These findings suggested that attention should be drawn to individuals with mental and chronic diseases in when scheduling work shifts. While SWD and its associates should be considered when providing psychological services to shift workers.
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Affiliation(s)
- Dongfang Wang
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, South China Normal University, Guangzhou, China; School of Psychology, Center for Studies of Psychological Application, and Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, Guangzhou, China
| | - Huilin Chen
- Department of Psychology, University of Bath, UK
| | - Dingxuan Chen
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, South China Normal University, Guangzhou, China; School of Psychology, Center for Studies of Psychological Application, and Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, Guangzhou, China
| | - Zijuan Ma
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, South China Normal University, Guangzhou, China; School of Psychology, Center for Studies of Psychological Application, and Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, Guangzhou, China
| | - Yifan Zhang
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, South China Normal University, Guangzhou, China; School of Psychology, Center for Studies of Psychological Application, and Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, Guangzhou, China
| | - Tong Wang
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, South China Normal University, Guangzhou, China; School of Psychology, Center for Studies of Psychological Application, and Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, Guangzhou, China
| | - Qian Yu
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, South China Normal University, Guangzhou, China; School of Psychology, Center for Studies of Psychological Application, and Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, Guangzhou, China
| | - Jiaqi Jiang
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, South China Normal University, Guangzhou, China; School of Psychology, Center for Studies of Psychological Application, and Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, Guangzhou, China
| | - Zihao Chen
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, South China Normal University, Guangzhou, China; School of Psychology, Center for Studies of Psychological Application, and Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, Guangzhou, China
| | - Fujie Li
- Shandong Xinyue Health Technology Company, China
| | | | - Fang Fan
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, South China Normal University, Guangzhou, China; School of Psychology, Center for Studies of Psychological Application, and Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, Guangzhou, China.
| | - Xianchen Liu
- Center for Public Health Initiatives, University of Pennsylvania, Philadelphia, PA, USA
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Chen D, Jiang M, Shi X, Geng F, Qi H, Zhang Y, Lai Y, Fan F. Predictors of the initiation of shift work disorder among Chinese intern nurses: a prospective study. Sleep Med 2020; 68:199-206. [DOI: 10.1016/j.sleep.2019.11.1263] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 11/20/2019] [Accepted: 11/27/2019] [Indexed: 12/20/2022]
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12
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Otaka H, Murakami H, Nakayama H, Murabayashi M, Mizushiri S, Matsumura K, Tanabe J, Matsuhashi Y, Yanagimachi M, Yoshida K, Sugawara N, Yasui‐Furukori N, Daimon M. Association between insomnia and personality traits among Japanese patients with type 2 diabetes mellitus. J Diabetes Investig 2019; 10:484-490. [PMID: 30183140 PMCID: PMC6400161 DOI: 10.1111/jdi.12927] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 08/14/2018] [Accepted: 08/30/2018] [Indexed: 12/19/2022] Open
Abstract
AIMS/INTRODUCTION Insomnia is associated with type 2 diabetes mellitus, and results in a low quality of life. There are several known relationships between insomnia and personality. Thus, we clarified the association between some personality traits and insomnia among Japanese type 2 diabetes mellitus patients. MATERIALS AND METHODS The participants were 504 type 2 diabetes mellitus patients (mean age 63.9 ± 12.5 years). Sleep disturbance and personality traits were evaluated using the Pittsburgh Sleep Quality Index-Japanese version and the Ten-Item Personality Inventory Japanese version, respectively. Lifestyle factors, glycated hemoglobin levels and depressive status of the patients were also included in the analyses. RESULTS Among the 504 participants with type 2 diabetes mellitus, 154 (30.6%) showed probable insomnia. After adjustment for confounders, being female, living alone, high body mass index and "high neuroticism" were found to be significantly correlated with current insomnia. No other relationships between insomnia and glycated hemoglobin or lifestyle factors, such as smoking, drinking alcohol or exercise frequency, were found. CONCLUSIONS The prevalence of insomnia in individuals with type 2 diabetes mellitus was high, and the risk factors included some personality factors. Future prospective studies are required to confirm the therapeutic effects of behavioral interventions for insomnia in patients with type 2 diabetes mellitus.
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Affiliation(s)
- Hideyuki Otaka
- Department ofEndocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
| | - Hiroshi Murakami
- Department ofEndocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
| | - Hirofumi Nakayama
- Department ofEndocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
| | - Masaya Murabayashi
- Department ofEndocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
| | - Satoru Mizushiri
- Department ofEndocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
| | - Koki Matsumura
- Department ofEndocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
| | - Jutaro Tanabe
- Department ofEndocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
| | - Yuki Matsuhashi
- Department ofEndocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
| | - Miyuki Yanagimachi
- Department ofEndocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
| | - Kazutaka Yoshida
- Department ofNeuropsychiatryHirosaki University Graduate School of MedicineHirosakiJapan
| | - Norio Sugawara
- Department of Clinical EpidemiologyTranslational Medical CenterNational Center of Neurology and PsychiatryKodaira, TokyoJapan
| | - Norio Yasui‐Furukori
- Department ofNeuropsychiatryHirosaki University Graduate School of MedicineHirosakiJapan
| | - Makoto Daimon
- Department ofEndocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
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Dekker K, Blanken TF, Van Someren EJW. Insomnia and Personality-A Network Approach. Brain Sci 2017; 7:brainsci7030028. [PMID: 28257084 PMCID: PMC5366827 DOI: 10.3390/brainsci7030028] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 02/22/2017] [Accepted: 02/28/2017] [Indexed: 01/05/2023] Open
Abstract
Studies on personality traits and insomnia have remained inconclusive about which traits show the most direct associations with insomnia severity. It has moreover hardly been explored how traits relate to specific characteristics of insomnia. We here used network analysis in a large sample (N = 2089) to obtain an integrated view on the associations of personality traits with both overall insomnia severity and different insomnia characteristics, while distinguishing direct from indirect associations. We first estimated a network describing the associations among the five factor model personality traits and overall insomnia severity. Overall insomnia severity was associated with neuroticism, agreeableness, and openness. Subsequently, we estimated a separate network describing the associations among the personality traits and each of the seven individual items of the Insomnia Severity Index. This revealed relatively separate clusters of daytime and nocturnal insomnia complaints, that both contributed to dissatisfaction with sleep, and were both most directly associated with neuroticism and conscientiousness. The approach revealed the strongest direct associations between personality traits and the severity of different insomnia characteristics and overall insomnia severity. Differentiating them from indirect associations identified the targets for improving Cognitive Behavioral Therapy for insomnia with the highest probability of effectively changing the network of associated complaints.
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Affiliation(s)
- Kim Dekker
- Department of Sleep and Cognition, Netherlands Institute for Neuroscience, Meibergdreef 47, Amsterdam 1105 BA, The Netherlands.
| | - Tessa F Blanken
- Department of Sleep and Cognition, Netherlands Institute for Neuroscience, Meibergdreef 47, Amsterdam 1105 BA, The Netherlands.
- Department of Integrative Neurophysiology and Psychiatry, Center for Neurogenomics and Cognitive Research (CNCR), Neuroscience Campus Amsterdam, VU University and Medical Center, A.J. Ernststraat 1187, Amsterdam 1081 HL, The Netherlands.
| | - Eus J W Van Someren
- Department of Sleep and Cognition, Netherlands Institute for Neuroscience, Meibergdreef 47, Amsterdam 1105 BA, The Netherlands.
- Department of Integrative Neurophysiology and Psychiatry, Center for Neurogenomics and Cognitive Research (CNCR), Neuroscience Campus Amsterdam, VU University and Medical Center, A.J. Ernststraat 1187, Amsterdam 1081 HL, The Netherlands.
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