Abstract: As of June 2018, the number of Internet users in China reached 802 million. The Internet has brought great convenience to people’s work, study and life, but also with some negative effects, such as cyber violence, pornographic and addiction. Among these negative problems, Internet addiction is most concerned. Previous studies have suggested that individual characteristics (personality, self, needs, emotion, thinking), environmental characteristics (schools, families, peers) and network use characteristics (motivation and experience) can affect Internet addition, but few studies have focused on the role of intrusive thoughts. Almost everyone experiences intrusive thoughts which can cause a series of adaptation problems like anxiety, depression and obsession. Because the intrusive thoughts have negative effects on individual adaptation, intrusive thoughts may affect Internet addiction, which is a type of adverse adaptation in the digital age. Based on the Limited Resource Model of Self-Control, we examined the impact of intrusive thoughts on Internet addition, the mediating effect of self-control, and the moderating effect of cognitive reappraisal. The participants of this study consisted of 371 students, these participants completed a battery of questionnaires, including Intrusive Thoughts Scale, Self-control Scale, Cognitive Reappraisal Scale and Internet Addiction Scale. Results showed that: (1)Intrusive thoughts positively predicted Internet addiction; Self-control negatively predicted Internet addiction. (2) Self-control played a mediating role between intrusive thoughts and Internet addiction. (3) The first half of the mediating effects of “intrusive thoughts — Self-control — Internet addiction” is influenced by cognitive reappraisal; The influence of intrusive thoughts was much stronger for individuals with low cognitive reappraisal compared to that for individuals with high cognitive reappraisal. With the deepening of Internet addiction research, scholars pay more attention to finding in-depth theory to explain the process of Internet addiction formation. They have studied the Internet addiction from cognitive-behavioral model of pathological Internet use, self-determination theory and ecosystem theory, but few studies based on the limited self-control theory. Self-control plays a central role as an impulsive control disorder in the development of Internet. Therefore, the limited self-control theory with self-control as its core provides an ideal theoretical direction for the study of Internet addiction. Future research can further examine whether there are other factors that influence Internet addiction by consuming self-control from this theory. This study suggests that intervention for Internet addiction should focus on the following aspects. Firstly, paying special attention to individuals who have experienced major stress events. Scholars have found that these individuals are more likely to experience intrusive thoughts, including natural disasters and bereavement. Secondly, cognitive training can be used to reduce intrusive thoughts, such as mindfulness therapy. Mindfulness emphasizes the acceptance of experience and can reduce the intrusive thoughts effectively. Finally, the negative impact of intrusive thoughts on Internet addiction can be weakened through instructional cognitive reappraisal. Whether it is spontaneous cognitive reappraisal or guided cognitive reappraisal, it will reduce the emotional response in stress situations. For individuals who is slow with using cognitive reappraisal, guided cognitive reappraisal can help them cope with intrusive thoughts, and then, reduce the risk of Internet addiction.

Key words: intrusive thoughts, self-control, internet addiction, limited resource model of self-control

摘要： 本研究基于有限自制力理论考察闯入性思维对网络成瘾的影响及其自我控制的中介作用和认知重评的调节作用。以371名大学生为被试，采用闯入性思维量表、自我控制量表、认知重评量表和网络成瘾量表进行测试，结果发现：（1）闯入性思维和自我控制呈显著负相关，与网络成瘾呈显著正相关；自我控制与网络成瘾呈显著负相关。（2）闯入性思维通过自我控制的中介作用对网络成瘾产生影响。（3）“闯入性思维—自我控制—网络成瘾”这一中介效应的前半段受到认知重评的影响；与低认知重评的个体相比，闯入性思维对高认知重评个体自我控制的影响更小。

关键词: 闯入性思维, 自我控制, 网络成瘾, 有限自制力理论