disorder and gaming disorder are included as specific forms of disorders due to addictive behaviors. Both can be further subcategorized as occurring predominantly offline or online. The definitions of gambling disorder and gaming disorder include symptoms similar to those of disorders due to substance-use, i.e. impaired control over the behavior, increasing priority given to the behavior by neglecting other interests or activities, and continuation of the behavior despite negative consequences 9. Even though social-networks-use disorder has not yet been officially classified, researchers already outline that this addiction-like behavior may be comparable to other behavioral addictions or substance-use disorders, at least along several dimensions 10-12. From a neuropsychological perspective, addictive behaviors (out of control behaviors that produce typical addiction symptoms) are assumed to result from an imbalance between two interacting neural systems. More specifically, it is assumed that a hyperactivity of an impulsive system, which enables quick and emotional responses towards immediately gratifying options, undermines cognitive control processes of a reflective system resulting in addictive behaviors; e.g., 13-15. The reflective system is associated with prefrontal cortex operations, such as executive functions and inhibitory control, which enable the control of impulsive responses 13,16-19. According to Goldstein and Volkow 14 , dysfunctions in respective brain regions contribute to impairments in response inhibition. Situational factors (e.g. the presence of specific cues) and individual predisposing factors (e.g. personality traits) are assumed to interactively influence the way impulsive and reflective processes influence the decision to perform (or not to perform) a specific behavior see also 20. In accordance with such dual-process approaches and previous theoretical models 21-23 , the I-PACE (Interaction of Person-Affect-Cognition-Execution) model by Brand, et al. 24 builds on empirical findings from behavioral and neuroimaging studies and summarizes the process of the development and maintenance of addictive behaviors. According to this model, individual predisposing variables, including trait impulsivity, affect the subjective perception of situational cues. Situational factors (e.g. confrontation with addiction-related cues, stress, and personal conflicts) are assumed to interact with individual coping styles and cognitive biases, leading to affective and cognitive responses, e.g. cue-reactivity, craving, and attentional bias 24,25. Furthermore, inhibitory control and general executive functions, which encompass several cognitive processes such as retrieval and integration of information, cognitive flexibility, planning, monitoring, updating, strategy evaluation and application, as well as attention and inhibitory control 20,26,27 , buffer against addictive behavior enactment and the development of addiction symptoms. Reductions in general executive functions and inhibitory control intensify a spe...