When researchers at nine German universities handed a joystick to more than a thousand participants, they discovered something that could reshape how we understand internet addiction: people who struggle with compulsive online use show a dramatically stronger unconscious pull toward digital content.
The finding matters because it suggests that excessive internet use isn't simply a choice—it's rooted in automatic psychological processes that operate below conscious awareness. This distinction opens a new door for treatment. If we can identify the brain mechanisms driving problematic internet use, we can develop interventions to help people regain control.
The multicenter study, published in the Journal of Behavioral Addictions in May 2026, involved 1,015 participants across Duisburg, Bamberg, Giessen, Hannover, Lübeck, Macau, Mainz, Siegen, and Bochum. Researchers divided participants into three groups based on diagnostic criteria from the DSM-5 and ICD-11: those with non-problematic internet use, those with risky use, and those with pathological—or clinically problematic—internet use. All participants then completed the same deceptively simple task.
On a computer screen, they saw images associated with online content—login screens from social media platforms, gaming sites, shopping websites, and pornography services—alongside neutral control images like hands using scissors. Using a joystick, participants were instructed to pull certain images toward themselves and push others away. The twist: in half the iterations, they pulled internet-related images closer; in the other half, they pushed them away. Researchers measured their reaction times throughout.
The results revealed a consistent pattern. Everyone showed some tendency to approach internet-related content compared to neutral images—a sign of the genuine appeal these platforms hold. But the strength of this automatic pull diverged sharply by group. People with problematic internet use showed a significantly stronger unconscious attraction to online stimuli than those in the other two groups.
"This indicates that certain training programs can be developed to help affected individuals distance themselves from such stimuli," explains Professor Martin Diers of the Ruhr University Bochum Clinic for Psychosomatic Medicine and Psychotherapy, who led the research.
The implications are encouraging. The research team found a behavioral marker—this measurable, unconscious approach tendency—that could help clinicians identify who is most at risk. More importantly, it suggests a pathway forward for treatment. If people with problematic internet use are being pulled toward these stimuli automatically, then targeted interventions could teach them to actively override that impulse.
The researchers also observed something intriguing in individuals with more severe forms of problematic internet use: evidence of avoidance tendencies alongside approach tendencies. This pattern likely reflects an internal conflict—the desire to engage in rewarding online activities battling against negative consequences like loss of control or feelings of guilt.
Understanding this automatic attraction mechanism doesn't excuse compulsive online behavior, but it reframes it as something potentially treatable through specific, evidence-based training. The next step is developing and testing these interventions to help people genuinely reclaim their relationship with the internet.