Digital Dopamine: The Neuropsychology of Social Media Addiction Among Adolescents

Abstract

The proliferation of social media platforms has coincided with emerging concerns about addictive behaviors among adolescents, particularly regarding the neuropsychological mechanisms underlying excessive social media use. This study examines the role of dopaminergic pathways in social media addiction among adolescents aged 13-18, investigating how digital reward systems interact with developing neural circuitry to create patterns of compulsive use. Through a comprehensive review of neuroimaging studies, behavioral assessments, and longitudinal data from 2018-2024, this research explores the neurobiological underpinnings of social media addiction and its implications for adolescent brain development. The findings reveal that social media platforms exploit dopaminergic reward mechanisms through variable ratio reinforcement schedules, creating addiction-like patterns that are particularly pronounced during adolescence due to ongoing prefrontal cortex development. Neuroimaging data demonstrates structural and functional changes in brain regions associated with reward processing, impulse control, and social cognition among heavy social media users. The study proposes a neuropsychological model of digital addiction and discusses implications for intervention strategies targeting adolescent populations.