Abstract
BackgroundSocial and emotional deficits are assumed to be involved in the development and maintenance of internet gaming disorder (IGD). Alexithymia refers to a personality construct, which is characterized by deficits in emotional awareness and processing. The constructs of alexithymia and depression share similarities, and depression is a common comorbidity of IGD patients. The aim of this study was to analyze the relationship between alexithymia and IGD when controlling for depression symptom severity. Moreover, we compared alexithymia traits of IGD patients with those of non-pathological video gamers. MethodsIn a cross-sectional study n = 38 male IGD patients (EG) were recruited at specialized healthcare services in Germany. In addition, n = 39 male non-pathological video gamers (CG) were recruited via social media and bulletin board announcement. Both groups completed questionnaires measuring alexithymia (TAS-20), depression symptom severity (BDI) and IGD severity (s-IAT). ResultsAlexithymia and depression symptom severity both predicted IGD severity. Yet, when including both factors in multiple regression analysis, only alexithymia predicted IGD severity. The prevalence of alexithymia in the EG was 34.2 % (n = 13). None of the non-pathological video gamers scored above the cut-off indicating alexithymia. IGD patients showed higher traits of alexithymia in general and on each subscale, irrespective of whether or not they were currently consuming video games. As previously observed, depression symptom severity was significantly greater in IGD patients compared to healthy video gamers. Yet, group differences in alexithymia traits remained stable, with a ~29 % decrease of effectiveness in the relationship, when controlling for depression symptom severity and sociodemographic factors. ConclusionThe results reveal that alexithymia is associated with and predicts IGD severity independently of depression symptom severity. Moreover, alexithymia is highly prevalent in IGD patients.
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