Brain and behavior · 2026
Disrupted Sensory-Motor Network Integrity in Excessive Online Gaming: Insight From Multimodal Morphometric Mapping.
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Abudouxukuer Zulalanmu, Afiadenyo Michael, Yang Zhenzhen, Becker Benjamin, Ferraro Stefania, Agoalikum Elijah, Angmorterh Seth Kwadjo, Djankpa Francis Tanam, Adams Latif, Biswal Bharat B, Klugah-Brown Benjamin
Аннотация
INTRODUCTION: Excessive online gaming (EOG) is a transitional stage between recreational gaming and internet gaming disorder (IGD), characterized by impaired self-control and escalating engagement. Early identification of neural and behavioral vulnerabilities is crucial for understanding IGD development.
METHODS: Fifty-nine young adults (30 EOG, 29 controls) completed structural MRI and behavioral assessments, including the IGD Scale-Short Form (IGDS9-SF) and the Liebowitz Social Anxiety Scale (LSAS). Source-based morphometry (SBM) identified independent gray matter networks, while behavioral profiling and receptor-level mapping examined functional and neurochemical associations.
RESULTS: SBM revealed six gray matter components, with one network encompassing the right thalamus and precentral gyrus showing reduced loading in EOG, which negatively correlated with IGDS9-SF scores. Behavioral annotation linked this network to sensory integration, attention, and motor-executive control. Spatial overlap with serotonergic and dopaminergic receptor distributions indicated potential neurotransmitter involvement.
CONCLUSION: Early alterations in sensory-motor networks and associated neurotransmitter systems may contribute to impaired self-regulation and heightened reward sensitivity, providing a multimodal framework for understanding the progression from excessive gaming to IGD.
METHODS: Fifty-nine young adults (30 EOG, 29 controls) completed structural MRI and behavioral assessments, including the IGD Scale-Short Form (IGDS9-SF) and the Liebowitz Social Anxiety Scale (LSAS). Source-based morphometry (SBM) identified independent gray matter networks, while behavioral profiling and receptor-level mapping examined functional and neurochemical associations.
RESULTS: SBM revealed six gray matter components, with one network encompassing the right thalamus and precentral gyrus showing reduced loading in EOG, which negatively correlated with IGDS9-SF scores. Behavioral annotation linked this network to sensory integration, attention, and motor-executive control. Spatial overlap with serotonergic and dopaminergic receptor distributions indicated potential neurotransmitter involvement.
CONCLUSION: Early alterations in sensory-motor networks and associated neurotransmitter systems may contribute to impaired self-regulation and heightened reward sensitivity, providing a multimodal framework for understanding the progression from excessive gaming to IGD.