Abstract: Adolescence is a stage of life characterized by change and rapid development. Depression and self-injury are two common mental health problems in adolescence. Previous studies have shown that there is a trend of development between depression and self-injury in adolescence, and there may be a two-way promotion relationship. This means that teenagers may fall into a vicious circle of depression and self-injury. For this reason, to explore the possible ways to break the vicious circle between depression and self-injury in adolescents, this study adopted a follow-up study design to investigate the two-way predictive relationship between adolescent depression and self-injury through cross-lag analysis, and then brought parent-child communication as a moderator into the analysis of the mechanism of the relationship between depression and self-injury. Participants as subjects for a follow-up survey for 10 months were 595 adolescents (50.59% girls; Mage = 12.17) who had experienced self-injury in the first and / or second year of junior high school. The first test was conducted in December 2018, using the Adolescent self-injury questionnaire and the floating Center Depression scale. The second test was conducted in October 2019, and the parent-child communication scale was added on the basis of the first test. Data were analyzed using SPSS21.0 and Mplus8.0, including repeated measurement of variance analysis, correlation analysis, regression analysis and path analysis of cross lag model. The results showed that: (1) From the first year of junior high school to the second year of junior high school, the depression of adolescents showed an increasing trend, and the gender difference was significant, and the depression level of girls was higher than that of boys; while the growth trend of self-injury of adolescents was not obvious, but showed obvious gender differences after the second year of junior high school. the level of self-injury of girls was higher than that of boys. (2) The simultaneous and continuous correlations between depression and self-injury in adolescents were significant. (3) Pre-test depression of adolescents can significantly predict post-test self-injury, but the predictive effect of pre-test self-injury on post-test depression was not obvious. (4) Post-test father-child communication and post-test mother-child communication had negative control response on the relationship between the level of pre-test depression and post-test self-injury in adolescents. In summary, from the perspective of development, this study confirms that depression in the first year of junior high school is a predictor of self-injury behavior in the second year of junior high school, and this relationship is regulated by parent-child communication, that is, good parent-child communication can significantly reduce the effect of depression on self-injury. These results reveal the interaction mechanism between adolescent depression and self-injury, which is of great significance for the formulation of targeted adolescent intervention measures.

Key words: self-injury, depression, parent-adolescent communication, adolescent, cross-lagged regression analysis

摘要： 为考察青少年抑郁与自伤的双向关系及亲子沟通的调节效应，采用青少年自我伤害问卷、流动中心用抑郁量表和亲子沟通量表对595名初一学生进行为期10个月的追踪研究。结果发现，从初一到初二，抑郁呈增长趋势，且性别差异显著，而自伤的增长趋势不明显，但到初二后表现出了明显的性别差异；抑郁和自伤的同时性相关和继时性相关均显著；前测抑郁对后测自伤有明显的预测作用，但前测自伤对后测抑郁的预测作用不明显；父子沟通和母子沟通在前测抑郁与后测自伤水平之间有显著的负向调节作用。

关键词: 自伤 抑郁 亲子沟通 青少年 交叉滞后分析