Abstract: Abstract: the development of mobile Internet has pushed the contemporary society to a new era of digital Internet. The use of social networking based on mobile Internet profoundly affects the reality and internet life for adolescents. More and more practical problems are transferred to the Internet. The boundaries between the real world and the virtual world become more and more blurred, which brings more challenges to social governance. The current study shows that there is a close relationship between the problematic mobile social networks usage for adolescents and personality, negative emotion, social psychological motivation, especially loneliness, interpersonal distress and positive self presentation are important risk predictors for the problematic mobile social networks usage. As a negative emotion, loneliness is a kind of unpleasant subjective emotional experience caused by lack of social communication ability or lack of social networking. It is closely related to social communication ability, and interpersonal disturbance is the main manifestation of insufficient social interaction ability. Positive self presentation is also an important predictor of the problematic mobile social networks usage for adolescents. Those who have positive emotions and frequently use social networking to send information, update their status and make comments, have a low level of loneliness and are not easy to produce problematic usage. Those who have passive emotion and use the mobile social networks have a higher level loneliness and more prone to problematic behavior. It can be seen that loneliness, interpersonal distress and positive self-presentation have an impact on the problematic mobile social networking usage for adolescents, and there may be complex mechanisms between these variables. Since the main motivation of adolescents to use mobile social networks is to satisfy positive social experiences through mobile social networks usage, whether adolescents with higher loneliness prefer to reduce their loneliness through active self-presentation to experience active socialization Experience? Do interpersonal adolescents also want to experience positive social experiences through positive self-presentation? Will interpersonal disturbances triggered by loneliness also further motivate individuals to seek more positive self-gratification and lead to the problematic mobile social networks usage? In order to explore the relationship between loneliness and problematic mobile social networking usage, and the interaction mechanism between interpersonal distress and positive self presentation in loneliness and problematic mobile social networks usage for adolescents. A total of 2,872 students from secondary schools and universities were surveyed by loneliness scale, interpersonal relationship comprehensive diagnosis scale, social network self presentation scale and adolescents problematic mobile social network usage questionnaire, the statistical analysis was carried out by SPSS 18.0, Amos and bias correction non-parametric percentile Bootstrap confidence interval method. The results showed that there was a significant positive correlation between loneliness, interpersonal distress, positive self presentation and problematic mobile social networks usage. Loneliness, interpersonal distress, positive self presentation had positive predictive effect on the problematic mobile social networks usage. Interpersonal distress, positive self presentation play a mediating role in the relationship between loneliness and problematic mobile social networks usage, while the influence of loneliness on problematic mobile social networks usage is mediated by multiple chains intermediaries of interpersonal distress and positive self presentation. Therefore the effect of loneliness on problematic mobile social networks usage is mediated by interpersonal disturbance and positive self presentation.

Key words: adolescent, mobile social network, loneliness, interpersonal distress, positive self presentation

摘要： 摘 要：为探讨孤独感与青少年问题性移动社交网络使用的关系，以及人际困扰和积极自我呈现在孤独感与问题性移动社交网络使用行为间的作用机制。采用孤独感量表、人际关系综合诊断量表、社交网站自我呈现量表和青少年问题性移动社交网络使用行为评估问卷，按照年级整群分层取样方式选取2872名青少年为研究对象，采用SPSS18.0、Amos以及偏差校对非参数百分位Bootstrap置信区间法进行统计分析。结果发现，孤独感、人际困扰、积极自我呈现和问题性移动社交网络使用两两间均存在显著正向相关，孤独感、人际困扰和积极自我呈现对问题性移动社交网络使用行为均具有显著正向预测作用，人际困扰和积极自我呈现在孤独感与问题性移动社交网络使用关系间分别起中介作用，同时孤独感对问题性移动社交网络使用的影响通过人际困扰→积极自我呈现的链式关系发生作用。

关键词: 青少年, 移动社交网络使用, 孤独感, 人际困扰, 积极自我呈现