Objective：To explore the relations among self-concept,mental health and internet overuse tendency of middle school students.Methods：This study investigated 781 middle-school students of Changsha,Xiangtan and Shaoyang in Hunan province with Young＇s Internet Addiction Test,Fitts＇ Self-concept Test and Symptom Checklist 90（SCL-90）.Results：The incidence of IOT was 9.6%;IOT students＇ score of self-criticism subscale was significantly higher than that of control group when their total score of self-concept and the scores of other subscales we...
