Akademik Veri Yönetim Sistemi
CHRONOBIOLOGY INTERNATIONAL, cilt.42, sa.6, ss.716-723, 2025 (SCI-Expanded, Scopus)
Recent investigations into Sluggish Cognitive Tempo (SCT), also known as Cognitive Disengagement Syndrome, have primarily focused on its association with ADHD. However, emerging evidence suggests SCT may be a distinct clinical entity, despite frequent co-occurrence with ADHD symptomatology. While ADHD studies have elucidated sleep patterns and chronotype preferences, SCT research has largely focused on ADHD-comorbid cases, providing limited data on community-based adolescents and adults. This study aims to investigate sleep disturbances and chronotype characteristics in individuals with pure SCT compared to those with ADHD and healthy controls within a clinical sample. We utilized the DSM-IV-based Disruptive Behavior Disorders Rating Scale (DBDRS-parent and teacher form), Barkley Sluggish Cognitive Tempo Scale (BSCTS), the Schedule for Affective Disorders and Schizophrenia for School-Age Children-Present and Lifetime Version (K-SADS), Children's Sleep Habit Questionnaire, and Children's Chronotype Questionnaire for the evaluation of children with SCT, ADHD, and healthy controls. Our findings revealed shorter sleep duration in ADHD (n: 67) children compared to both SCT (n: 50) and healthy controls (n: 50), with no significant difference between SCT and healthy controls (p < 0.001). Eveningness tendencies were highest in SCT but also elevated in ADHD compared to controls (p < 0.001). Additionally, daytime sleepiness was highest in SCT and higher in ADHD than controls (p < 0.001). Regression analyses demonstrated that SCT severity predicted both daytime sleepiness and eveningness.