Stimulating flow in MOBA games: a moderated serial mediation model of gamification mechanics, perceived competence, and player retention.

Neighborhood opportunities, such as access to quality education, socioeconomic stability, and healthcare resources, are believed to play a crucial role in shaping cognitive abilities, as well as physical and mental health outcomes across the lifespan [–]. These effects may be especially pronounced during childhood and adolescence, when the brain is highly sensitive to environmental inputs [, ]. Prior research shows that children from lower-opportunity neighborhoods tend to have poorer cognitive performance in language, processing speed, and executive function, and are at higher risk for psychiatric disorders [–]. Neuroimaging studies support these findings, revealing altered structural and functional brain development in key regions such as the frontal, parietal, temporal, and hippocampal regions in children from disadvantaged neighborhoods [–]. While these studies have linked neighborhood conditions to neurodevelopmental outcomes, neighborhood opportunity is a multidimensional construct that includes diverse factors across educational, economic, and environmental domains. However, it remains unclear which specific domains are most strongly associated with brain and cognitive development. During childhood and adolescence, the brain undergoes significant structural and functional maturation, including myelination and the development of white matter tracts, which are essential for higher-order cognitive processes, such as memory, decision-making, and emotional regulation [–]. Among these, white matter association fiber tracts facilitate intra-hemispheric connectivity by linking key cortical areas—including the frontal, parietal, and temporal lobes—and are crucial for integrating sensory information, language, and executive functions [–]. Association fiber tracts mature later than projection and commissural pathways, with development extending into early adulthood, making them especially sensitive to environmental influences, including neighborhood-level exposures such as educational resources, socioeconomic conditions, and environmental quality [, –]. While existing research suggests that white matter development may be influenced by environmental factors, studies specifically examining the role of neighborhood opportunities in this process remain limited [, , ]. Furthermore, most prior research has often been constrained by small sample sizes and a narrow focus on socioeconomic factors, often neglecting broader domains such as educational access and environmental quality []. A recent study from the Adolescent Brain Cognitive Development (ABCD) Study found that early-life adversity was associated with lower fractional anisotropy (FA)—a diffusion MRI (dMRI)-based measure of white matter microstructure—and with reduced cognitive performance in language, inhibitory control, and mental arithmetic []. However, further work is needed to determine how specific, structural aspects of neighborhood opportunity relate to tract-specific white matter development and cognitive performance in large, population-based samples.