时间：2026年11月12日（周四）中午 12:00
地点：清华大学吕大龙楼11层1100
报告主题：Co-occurrence of Depression and Internet Addiction in Adolescents: Typological Features, Developmental Cascades, Predictive Factors, and Formation Mechanism
报告人： 博士研究生：李炎
内 容：
Why do adolescent depression and Internet addiction often co-occur, and how do they develop over time? Based on a large-scale provincial cross-sectional survey and two four-wave longitudinal tracking datasets, and integrating person-centered analysis, longitudinal symptom network analysis, machine learning, and longitudinal mediation analysis, this report will present the typological features, developmental cascades, predictive factors, and psychological pathways of co-occurrence.
The findings show that the cross-sectional co-occurrence detection rate was 7.26%; co-occurrence manifests in different symptom combinations and developmental trajectories. At the construct level, within-person predictive relationships varied across observation stages; at the symptom level, cross-domain predictive pathways mainly ran from Internet addiction to depression. Suicidal ideation, rumination, and parental maltreatment were important risk signals, while self-control and school belonging showed high importance in longitudinal prediction.
Family protective resources were indirectly associated with lower subsequent co-occurrence through self-esteem, whereas cumulative family risks were indirectly associated with higher subsequent co-occurrence through sadness rumination; moderation by peer group network centralization was mainly observed in the protective pathway. This report will integrate the dual-level developmental cascade model and the hierarchical risk-resource influence model to discuss the implications of these findings for early identification and stratified prevention of co-occurrence, and will introduce a dual-pathway theoretical intervention framework emphasizing resource enhancement and risk management.
来源：彭凯平课题组
排版：杨蓝瑜
责编：牛政旸
审核：伍珍
