The present study aimed to explore the mediating effects of loneliness, depression, and self-esteem on the association between shyness and generalized pathological Internet use (GPIU). A total of 5215 school students completed questionnaires regarding shyness, loneliness, depression, self-esteem, and GPIU (aged 11–23 years old, M = 16.19, SD = 3.10). The self-reported scores for GPIU, shyness, loneliness, depression, and self-esteem were tested in students from elementary schools to universities. The results of a variance analysis indicated that senior high school students had the greatest prevalence of GPIU of all the study stages. With the study stages resolved, the results of a structural equation model revealed that: (a) shyness positively predicted GPIU; (b) shyness/loneliness/depression predicted GPIU through self-esteem; (c) shyness predicted GPIU through loneliness/depression → self-esteem; and (d) shyness predicted GPIU through loneliness → depression → self-esteem. In conclusion, these results provided significant implications for preventing or reducing GPIU in Chinese school students.

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The present research aims to examine whether and how the negative network news browsing preference (NNNBP) affect individual’s aggression. Two studies were conducted in the current research: study 1 developed a new measurement scale—network news browsing preference questionnaire(NNBPQ). The results indicated it had appropriate reliability (Cronbach’s α = 0.93) and validity (χ 2 /df = 1.92, CFI = 0.94, NFI = 0.89, GFI = 0.89，TLI = 0.94，RMSEA = 0.05) , which was conformed to psychometrics standards, and could be used for further study. Study 2 explored the relationship between NNNBP and aggression, and the moderate effect of MAOA gene × gender among 352 college students. The results indicated that: (a) NNNBP could positively predict male college students’ hostility and total score. It also could positively predict female college students’ physical aggression, verbal aggression, hostility and total score. (b) MAOA Gene × gender had moderate effect on the relationship between NNNBP and aggression; more specially, NNNBP could positively predict female G allele carriers’ physical aggression and hostility, while didn’t show significant under other conditions. Finally, the limitations and future prospects of the present research were discussed.