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Subject: Insomnia

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Now showing 1 - 4 of 4
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    Article
    Citation - WoS: 5
    Citation - Scopus: 3
    The Roles of Intrusive Visual Imagery and Verbal Thoughts in Pre-Sleep Arousal of Patients With Insomnia Disorder: a Path Model
    (Springer/plenum Publishers, 2023) Turkarslan, Kutlu Kagan; Cinarbas, Deniz Canel; Perogamvros, Lampros
    Purpose Researchers have proposed that multiple factors such as hyperarousal, conditioning, worrying, or cortical arousal play roles in the predisposition to, initiation, and perpetuation of insomnia disorder. Previously, only a few studies investigated the differential effects of intrusive visual imagery (IVI) and intrusive verbal thoughts (IVT) on pre-sleep arousal or insomnia severity. The aim of the current cross-sectional study was to examine these effects as well as the moderator role of visual imagery ability (VIA) on the relationship between IVI and pre-sleep arousal.Methods A path model comprising the variables of IVI, IVT, pre-sleep arousal, and insomnia severity was tested with 166 of 1444 participants (M-age = 25.5, SD = 5.26) who were identified as having insomnia disorder based on a 12-question form corresponding to DSM-5 criteria for insomnia disorder and Insomnia Severity Index scores (>= 8). The moderator role of VIA on the relationship between IVI and pre-sleep arousal was evaluated with a moderation analysis.Results It was found that IVI (beta = 0.44, p < .001), but not IVT (beta = 0.15, p = .12), significantly predicted pre-sleep arousal and pre-sleep arousal (beta = 0.44, p < .001) significantly predicted insomnia severity. In addition, the indirect effect of IVI via pre-sleep arousal (IE = 0.19, p < .001) on insomnia severity was significant. Finally, the moderator role of VIA on the relationship between IVI and pre-sleep arousal (p = .07) was not significant.Conclusions IVI may play a more important role in insomnia disorder than IVT. Interventions targeting pre-sleep visual imagery can help poor sleepers alleviate insomnia severity.
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    Article
    Citation - WoS: 5
    Citation - Scopus: 5
    The psychometric properties of the Turkish version of the Pre-sleep Arousal Scale
    (Springer Japan Kk, 2024) Turkarslan, Kutlu Kagan; Canel cinarbas, Deniz; Nicassio, Perry M.
    PurposeThe aim of the present study was to examine the psychometric properties of the Turkish version of the Pre-sleep Arousal Scale (PSAS), which measures pre-sleep arousal, a significant predictor of insomnia symptoms.Methods651 participants were recruited via social media and the Internet. Confirmatory factor analysis was conducted in the total sample (65.28% females; M-age1 = 28.09 & PLUSMN; 14.00). Convergent, divergent, incremental, and known-groups validity and internal consistency coefficients were assessed in a subsample of 556 participants (62.77% females; M-age2 = 29.25 & PLUSMN; 14.81). A second separate sample of 88 participants (80.68% females; M-age3 = 22.19 & PLUSMN; 4.98) was used to evaluate three-week test-retest reliability.ResultsThe results of factor analysis confirmed the two-factor structure of the Turkish PSAS with cognitive (PSAS-C) and somatic (PSAS-S), similar to the original scale. The correlations of the PSAS with convergent and divergent measures showed that the Turkish form had good convergent and acceptable divergent validity. PSAS-C and PSAS-S were able to explain an 18% additional variance in insomnia severity beyond depression and anxiety, an 18% additional variance in depression beyond insomnia severity, and a 35% additional variance in anxiety beyond insomnia severity. Moreover, insomnia patients had significantly higher PSAS-C and PSAS-S scores than good sleepers. Finally, the PSAS, PSAS-C, and PSAS-S had satisfactory internal consistency coefficients (& alpha; = 0.92, 0.91, and 0.86, respectively) and three-week test-retest correlations (ICC = 0.82, 0.82, and 0.71, respectively).ConclusionThe Turkish form of the PSAS was a valid and reliable measure of pre-sleep arousal and can be utilized in sleep studies.
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    Review
    Uykusuzluk Bozukluğunun Psikolojik Modelleri: Güncel Bir Derleme
    (Galenos Publ House, 2024) Türkarslan, Kutlu Kağan; Çınarbaş, Deniz Canel
    Uykusuzluk bozukluğu kişisel ve toplumsal maliyetler yaratan; başlıca uykuya dalmada zorlanma, uykuyu sürdürmede güçlük ve sabah planlanandan daha erken saatlerde uyanma belirtileri ile karakterize olan psikiyatrik bir rahatsızlıktır. Toplumun yaklaşık %10’unun uykusuzluk bozukluğuna sahip olduğu düşünülmektedir. Çalışmalar uykusuzluk bozukluğuna sahip olmanın genel hayat kalitesini düşürdüğünü, günlük işlevselliği azalttığını, bazı psikomotor ve bilişsel becerilerde bozulmalara sebep olduğunu, iş performansını düşürdüğünü, iş yerinde daha fazla devamsızlık yapmaya sebep olduğunu ve uykusuzluk bozukluğu dışındaki rahatsızlıklar için artan tedavi maliyetleri ortaya çıkardığını göstermektedir. Tüm bunlara ek olarak uykusuzluğun pek çok farklı psikiyatrik rahatsızlık için bir risk etmeni olduğu bilinmektedir. Son 50 yılda yapılan çalışmalar uykusuzluk bozukluğunu psikolojik açıdan açıklayan çeşitli modellerin ortaya çıkmasına sebep olmuştur. Bu psikolojik modellerden başlıcaları; “uyaran kontrolü modeli”, “Spielman modeli”, “mikroanalitik model”, “nörobilişsel model”, “tehdit algısının yüksek risk modeli”, “uykuya müdahale eden-uykuyu yorumlayan süreçler modeli”, “psikobiyolojik baskılama modeli”, “bilişsel model”, “evrimselduygusal model” ve “korku simülasyonu modeli”dir. Bu derleme makalesinin amacı uykusuzluk bozukluğunun psikolojik modellerinin temel sayıltılarından bahsederek modellerin güncel bir tablosunu sunmaktır.
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    Article
    Workaholism and Sleep Disorders in Employees: The Moderator Roles of Workaholism in the Relationships Between Insomnia and Affective Symptoms
    (Galenos Publ House, 2025) Nalbantoglu, Yagmur; Turkarslan, Kutlu Kagan
    Objective: Sleep disorders are a growing concern in occupational health due to their strong associations with emotional distress and impaired functioning. Employees with severe insomnia symptoms are at increased risk for affective symptoms such as anxiety and depression. However, this relationship may vary depending on work-related behavioral patterns. Workaholism, a compulsive drive to work excessively, may act as a moderator, intensifying the impact of sleep disturbances on affective symptoms and vice versa. This study aimed to assess sleep disorder risk among employees, examine differences in the severity of sleep disorders based on workaholism levels, and investigate the moderating roles of workaholism in the relationships between insomnia severity and affective symptoms. Materials and Methods: The sample consisted of 459 day-working employees (68.41% female, Mage =41.14, standard deviation =10.90) who completed measures of demographics, workaholism, and sleep disorders. Results: Results showed that 40.31% were at risk for at least one sleep disorder, and 28.98% for multiple. Compared to employees with lower workaholism, those with higher workaholism had significantly higher scores of breathing-related sleep disorder, insomnia, narcolepsy, restless legs/periodic limb movement disorder, and circadian rhythm sleep disorder. Moderation analysis revealed that workaholism significantly moderated the relationship between insomnia severity and affective symptoms, but not vice versa. As workaholism increased, the relationship between insomnia severity and affective symptoms became stronger. Conclusion: These findings suggest a high prevalence of sleep disorders among employees and that workaholism can exacerbate the affective burden of insomnia. Targeted interventions addressing both sleep health and workaholism may be critical for improving employee wellbeing.