Comorbidity of Internet use disorder and attention deficit hyperactivity disorder: Two adult case-control studies.

Objectives There is good scientific evidence that attention deficit hyperactivity disorder (ADHD) is both a predictor and a comorbidity of addictive disorders in adulthood. These associations not only focus on substance-related addictions but also on behavioral addictions like gambling disorder and Internet use disorder (IUD). For IUD, systematic reviews have identified ADHD as one of the most prevalent comorbidities besides depressive and anxiety disorders. Yet, there is a need to further understand the connections between both disorders to derive implications for specific treatment and prevention. This is especially the case in adult clinical populations where little is known about these relations so far. This study was meant to further investigate this issue in more detail based on the general hypothesis that there is a decisive intersection of psychopathology and etiology between IUD and ADHD. Methods Two case-control samples were examined at a university hospital. Adult ADHD and IUD patients ran through a comprehensive clinical and psychometrical workup. Results We found support for the hypothesis that ADHD and IUD share psychopathological features. Among patients of each group, we found substantial prevalence rates of a comorbid ADHD in IUD and vice versa. Furthermore, ADHD symptoms were positively associated with media use times and symptoms of Internet addiction in both samples. Discussion Clinical practitioners should be aware of the close relationships between the two disorders both diagnostically and therapeutically. When it comes to regain control over one's Internet use throughout treatment and rehabilitation, a potential shift of addiction must be kept in mind on side of practitioners and patients.

[Internet dependency as a symptom of depressive mood disorders]. / Internetabhängigkeit als ein Symptom depressiver Störungen.

OBJECTIVE: In psychiatric contexts, the quick distribution of virtual techniques in private and professional everyday life gives rise to the question, if these can evoke a psychological addiction. Yet, the diagnostic assessment of internet or computer game dependency remains problematic. METHODS: Within a study with 23 internet-dependent patients with significant psychological strain, 18 (77.8%) were diagnosed with a depressive mood disorder by thorough clinical examination and structured interviews. The presented work compares psychometric test results of the depressed subpopulation with healthy controls matched for age, sex and school education. RESULTS: In the Barrat Impulsiveness Scale patients with internet dependency scored significantly higher than the control group (p < or = 0.05), while there was no significant correlation to the Internet Addiction Scale. Becks Depression Inventory and the Symptom-Checklist subscale for depression revealed significantly higher scores within the patient group as compared to controls (p < or = 0.001). And in the Dissociative Experience Scale, the Sense of Coherence Scale and the Inventory for Interpersonal Problems the internet dependent subjects showed significantly more pathological scores than the healthy subjects (p < or = 0.05). CONCLUSIONS: Since internet dependency can be understood as a novel psychopathology of well known psychiatric conditions, every psychiatrist should be able to detect and treat it adequately, as long as there is a willingness to deal with the contents and impacts of cyberspace. Especially with depressed patients, it seems to be crucial to include questions about media usage in psychiatric examination taking.