Background: Given the high prevalence of internalizing disorders among adolescents, it is necessary to define the factors affecting the development and course of psychopathology. Nolen Hoeksema demonstrated the effect of rumination on the development of various forms of psychopathology in adults, while recent data suggest that cognitive control may be a factor underlying this relationship. The aim of this study is to investigate the relation between cognitive control impairments and symptoms of depression through rumination in adolescents suffering from internalizing psychiatric disorders.
Subjects and methods: The study included 100 adolescents of both genders diagnosed with internalizing psychiatric disorders at the Unit for Child and Adolescent Psychiatry at University Hospital Center Osijek. During psychodiagnostic assessment, subjects completed Youth self report, CANTAB Intra-dimensional/extra-dimensional (IED) task, The Ruminative Response Scale, and Beck Depression Inventory-II.
Results: The results indicate a clinically significant level of internalizing symptoms and a clinically and subclinically high level of depressive symptoms. The results also show a high positive correlation between internalizing symptoms, rumination, and depressive symptoms, as well as a positive correlation between female gender and internalizing symptoms, rumination, and depressive symptoms. Significant predictors of depression are female gender and rumination while cognitive control has not been detected as a significant predictor.
Conclusion: The results of the study emphasize the importance of rumination in the prediction of depressive symptoms in internalizing psychiatric disorders among adolescents and, accordingly, the importance of rumination as a clinical variable in terms of implications in the prevention and treatment of internalizing psychopathology.