Associations of mobile internet use and depressive symptoms with cognitive performance among Chinese adolescents: a cross-sectional study - Report - MDSpire

Associations of mobile internet use and depressive symptoms with cognitive performance among Chinese adolescents: a cross-sectional study

  • By

  • Danyan An

  • Jinfei Hou

  • Junsong Chen

  • Jie Chen

  • Suling Wu

  • Meiling Sheng

  • July 10, 2026

  • 0 min

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Links Between Mobile Internet Usage, Depressive Symptoms, and Cognitive Function in Chinese Adolescents

Overview

This study investigates the relationship between mobile internet usage, cognitive performance, and depressive symptoms among Chinese adolescents. Findings indicate that increased mobile internet use is linked to better vocabulary performance, while depressive symptoms correlate with lower cognitive performance in both vocabulary and mathematics.

Background

The rise of mobile internet usage among adolescents has raised concerns regarding its impact on mental health and cognitive development. With nearly universal internet access among Chinese youth, understanding these associations is crucial for addressing potential cognitive and emotional challenges.

Data Highlights

MeasureResultConfidence Interval
Depressive Symptoms Prevalence14.5%N/A
Vocabulary Performance (Mobile Internet Use)β = 0.3195% CI = 0.1, 0.52
Mathematics Performance (Depressive Symptoms)β = -1.1695% CI = -1.58, -0.74
Vocabulary Performance (Depressive Symptoms)β = -1.4995% CI = -2.03, -0.95
Interaction Effect (Mobile Internet Use & Depressive Symptoms)β = 0.4195% CI = 0.17, 0.65

Key Findings

  • 14.5% of Chinese adolescents exhibited depressive symptoms.
  • Increased mobile internet use was positively associated with vocabulary performance.
  • No significant association was found between mobile internet use and mathematics performance.
  • Adolescents with depressive symptoms had lower performance in both vocabulary and mathematics.
  • A significant interaction between mobile internet use and depressive symptoms was observed for vocabulary performance.

Clinical Implications

Clinicians should consider the dual impact of mobile internet use and depressive symptoms when assessing cognitive performance in adolescents. Understanding these relationships may inform interventions aimed at improving mental health and cognitive outcomes in this population.

Conclusion

The findings highlight the complex interplay between mobile internet usage, cognitive performance, and depressive symptoms in adolescents.

Related Resources & Content

  1. BMC Psychiatry (Springer) — Symptoms of Depression and Mobile Phone Dependency in Chinese Adolescents with Major Depressive Disorder: The Role of Alexithymia as a Mediator
  2. Frontiers in Psychiatry — Dimension-level network structure linking depression, anxiety, stress, sleep problems, and problematic smartphone use among chinese medical students
  3. BMC Psychiatry (Springer) — The association between smartphone addiction and creativity in Chinese college students: the chain mediating effects of depression and executive function
  4. Frontiers in Psychiatry — Excessive Internet use and depressive symptom levels in adolescents with depressive disorders: chain mediation of social anxiety and sleep quality
  5. Digital Media Use and Child Health and Development: A Systematic Review and Meta-Analysis | Media and Youth | JAMA Pediatrics | JAMA Network
  6. American Academy of Pediatrics Policy Statement
  7. Nonlinear dose-response relationships between screen time–based sedentary behavior and depression in adolescents: a systematic review and multilevel meta-analysis
  8. Digital Media Use and Child Health and Development: A Systematic Review and Meta-Analysis | Media and Youth | JAMA Pediatrics | JAMA Network

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