PubMed İndeksli Yayınlar Koleksiyonu

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Browsing PubMed İndeksli Yayınlar Koleksiyonu by Publisher "BMC"

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    Emotion Regulation and Visual Attention in Body Dysmorphic Disorder: A Multimodal Study Using EEG, GSR, and Eye-Tracking
    (BMC, 2026) Ulker, Selami Varol; Cinaroglu, Metin; Yilmazer, Eda; Sayar, Gokben Hizli
    BackgroundBody Dysmorphic Disorder (BDD) is a psychiatric condition characterized by obsessive preoccupation with perceived physical flaws, often accompanied by emotional dysregulation and attentional biases. Despite increasing clinical recognition, the neurophysiological and attentional mechanisms underlying BDD remain poorly understood.MethodsThis study employed a multimodal experimental design to compare individuals with BDD (n = 27) and healthy controls (n = 27). Participants completed standardized psychometric assessments and were exposed to emotionally valenced facial and body-related images while undergoing electroencephalography (EEG), galvanic skin response (GSR), and eye-tracking. Group-by-valence interactions were analyzed using mixed-model ANOVAs.ResultsThe BDD group showed significantly higher depression, anxiety, body image disturbance, and suppression scores, alongside reduced cognitive reappraisal and self-efficacy. EEG analyses revealed increased N170 amplitudes, attenuated P300 amplitudes, and greater right-sided frontal alpha asymmetry, suggesting early hypervigilance, reduced evaluative processing, and affective withdrawal. GSR data indicated heightened sympathetic arousal and delayed physiological recovery. Eye-tracking data descriptively indicated gender-specific attentional patterns within the BDD group, with females allocating greater visual attention to facial and lower-body regions and males showing increased fixation on muscular upper-body features; such patterns were not observed in the control group.ConclusionBDD is associated with dysregulated multisystem responses to appearance-related stimuli, characterized by neural hyperreactivity, impaired cognitive-emotional regulation, and gender-related patterns of visual attention. These findings support the utility of integrating psychophysiological and attentional markers into individualized assessment and intervention strategies for BDD.Clinical trial numberNot applicable.
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    Psychological Impact of the 2023 Kahramanmaras Earthquakes on Non-Victims: A Cross-Sectional Study
    (BMC, 2025) Cinaroglu, Metin; Yilmazer, Eda; Sayar, Gokben Hizli
    The 2023 Kahramanmara & scedil; earthquakes, with magnitudes of 7.7 and 7.6, caused extensive destruction and psychological distress across southeastern Turkey. This study explores the psychological impact on non-victims, particularly Istanbul residents, focusing on mental health outcomes and coping mechanisms. A cross-sectional survey was conducted from March to May 2024 with 721 participants from various Turkish cities, including a significant portion from Istanbul. Validated psychological scales such as the Beck Depression Inventory-II (BDI-II), Beck Anxiety Inventory (BAI), Warwick-Edinburgh Mental Well-being Scale (WEMWBS), and PTSD Checklist for DSM-5 (PCL-5) measured depression, anxiety, well-being, and PTSD symptoms. Sociodemographic factors like age, gender, occupation, income, education level, and previous earthquake experience were also analyzed. Results showed significant psychological distress among non-victims: 51.9% reported high levels of distress, with 24% meeting PTSD criteria, 30% exhibiting moderate to severe depression, and 28% experiencing significant anxiety. Higher income and education levels correlated with better mental health outcomes. Higher education levels were linked to lower PTSD risk (beta = -0.20, p < 0.01) and fewer depression symptoms (beta = -0.15, p < 0.05). Higher income was associated with lower depression scores (beta = -0.20, p < 0.01) and fewer PTSD symptoms (beta = -0.15, p < 0.05). Age positively correlated with well-being (r = 0.68, p < 0.001) and negatively with PTSD symptoms (r = -0.15, p < 0.05). Comparisons with victim studies of major earthquakes, such as the 1995 Great Hanshin-Awaji earthquake, the 1999 Marmara earthquake, the 2008 Wenchuan earthquake, and the 2000 Iceland earthquakes, revealed similar profound psychological impacts. This highlights the need for comprehensive mental health interventions for both direct and indirect exposures. This study underscores the necessity for inclusive mental health strategies to enhance resilience and well-being, ensuring robust recovery after catastrophic events.