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Author: Turkarslan, Kutlu KaganHas files: true

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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: 17
    Citation - Scopus: 21
    Psychometric Properties of the Hogg Eco-Anxiety Scale (heas-13) and the Prediction of Pro-Environmental Behavior
    (Academic Press Ltd- Elsevier Science Ltd, 2023) Turkarslan, Kutlu Kagan; Kozak, Ekin Doga; Yildirim, Juelide Ceren
    Objectives: Eco-anxiety, a novel conceptualization of anxiety in relation to ecological problems, has become a significant subject of interest in psychology. The Hogg Eco-Anxiety Scale (HEAS-13) is a recently developed, valid, and reliable measure of eco-anxiety. The present study aimed to investigate the psychometric properties of the HEAS-13 in Turkish-speaking samples. Methods: 605 individuals, recruited via social media and the internet, participated in the study. The sample was randomly split in half (first sample, 69.00% and second sample, 70.90% females), and exploratory and confirmatory factor analyses were conducted on separate samples. The concurrent and incremental validities were evaluated in the total sample. The three-week test-retest reliability of the HEAS-13 was assessed in a third separate sample (83.13% females). Results: Exploratory and confirmatory factor analyses found and validated a four-factor structure with 13 items. The associations of HEAS-13 with concurrent measures indicated that the scale had good concurrent validity. The anxiety and behavioral symptoms subscales of the HEAS-13 explained the additional variance (6.60%) in proenvironmental behavior beyond activist identity and commitment. Finally, the HEAS-13 and its subscales had good internal consistency coefficients, ranging from 0.82 to 0.93. and mediocre three-week intra-class correlations, ranging from 0.47 to 0.56. Conclusion: The Turkish HEAS-13 was a valid and reliable measure of eco-anxiety that can be used to assess anxiety about ecological problems. Moreover, optimizing levels of anxiety symptoms, alleviating behavioral symptoms, and enhancing individuals' activist identity and commitment may be targets for interventions aiming to increase pro-environmental behaviors.