Neurobiological Mechanisms of Neurotransmitter Imbalance Resulting from Excessive Digital Content Consumption in Children : An Analytical Study

This analytical preprint examines the neurobiological mechanisms underlying neurotransmitter imbalance associated with excessive digital content consumption in children. Drawing on evidence from developmental neuroscience, neuroimaging studies, and behavioral research, the study explores how prolonged screen exposure may disrupt key neurotransmitter systems, particularly GABA and glutamate, during critical periods of brain development. The paper synthesizes findings related to neural plasticity, inhibitory–excitatory balance, and executive function maturation, highlighting potential links between digital media overuse and attention regulation, impulsivity, and emotional control in early childhood. Special attention is given to measurable neurodevelopmental markers and validated assessment tools used in recent literature. By integrating neurobiological theory with empirical observations, this study aims to provide a clearer conceptual framework for understanding how digital environments interact with the developing brain. The findings contribute to ongoing discussions in neuroscience, child development, and digital health, and may inform future longitudinal research, clinical assessment strategies, and evidence-based guidelines for healthy digital media use in children.