The phenomenon of problematic mobile phone use (PMPU) has been incredibly increasing, especially in Asian countries. Prior studies have argued that negative emotion is linked to PMPU. Based on the cognitive-behavioural model of pathological Internet use and the buffering model of social support, our purpose is to identify the nuanced mediators of the rumination subtypes (i.e., reflection and brooding) and examine the moderator of social support in the relation between negative emotion and PMPU. A sample of 1,014 college students was recruited to complete the scales of PMPU, depression, anxiety, rumination (i.e., reflection and brooding), and social support. Results showed that (a) reflection did not mediate a link between negative emotion and PMPU whereas brooding partially mediated the link, and (b) both the direct association between negative emotion and PMPU and the mediated effect of brooding were moderated by social support, and they were stronger when social support was low rather than high. The study distinguishes the mediated effect of rumination subtypes and incorporates social factor in the relationship between negative emotion and PMPU, which deepens our understanding of how and when negative emotion relates to PMPU.

中文翻译：

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消极情绪和问题手机使用：反刍的中介作用和社会支持的调节作用

手机使用问题 (PMPU) 的现象越来越多，尤其是在亚洲国家。先前的研究认为，负面情绪与 PMPU 有关。基于病态互联网使用的认知行为模型和社会支持的缓冲模型，我们的目的是识别反刍亚型（即反思和沉思）的细微中介因素，并检验社会支持在负面关系中的调节因素。情绪和 PMPU。招募了 1,014 名大学生的样本来完成 PMPU、抑郁、焦虑、反刍（即反思和沉思）和社会支持的量表。结果表明（a）反思并没有调解负面情绪和PMPU之间的联系，而沉思部分调解了这种联系，(b) 消极情绪和 PMPU 之间的直接关联以及沉思的中介效应都受到社会支持的调节，并且当社会支持低而不是高时它们更强。该研究区分了反刍亚型的中介效应，并将社会因素纳入了负面情绪与 PMPU 之间的关系，这加深了我们对负面情绪如何以及何时与 PMPU 相关的理解。