This study aims to investigate the relationships among perceived social support, objective social support and social anxiety, and the efficacy of perceived social support in Internet-based Cognitive Behavioral Therapy (ICBT). In study 1: 122 undergraduates was investigated in their social support and social anxiety at two time points between 2 months. The results indicated that there was a significant positive correlation between objective social support and perceived social support. The mediating effect of perceived social support was significant between objective social support and social anxiety, 95% confidence interval [–1.47, –0.09]. Study 2: 64 participants in different levels of perceived social support was assigned to ICBT with social support groups or non-social support groups. The results suggested that ICBT reduced participants’ social anxiety in both social support groups. Moreover, the level of perceived social support in social support groups significantly increased than that of non-social support groups, and the perceived social support level in both groups enhanced after intervention. The perceived social support interacted with the effect of ICBT with social support groups. For participants with low perceived social support, ICBT with social support groups exhibited the better intervention. For participants with high perceived social support, ICBT without social support groups exhibited the better intervention. The study further understands and clarifies the role of social support in social anxiety and provides a foundation and direction for future clinical practice and application.

通过两个研究考察领悟社会支持和客观社会支持与社交焦虑的关系, 并探索领悟社会支持对社交焦虑个体网络认知行为治疗(ICBT)干预的效果。研究1: 对122名大学生被试进行两个时间点的社会支持与社交焦虑的测量, 结果发现领悟社会支持与社交焦虑相互影响, 领悟社会支持在客观社会支持与社交焦虑之间起中介作用, 中介效应的95%置信区间为[–1.47, –0.09]。研究2: 对比64名不同领悟社会支持水平的被试接受社会支持网络认知行为治疗与自助网络认知行为治疗的疗效, 结果发现社会支持组和自助组的被试在接受干预后社交焦虑得分都有显著下降, 领悟社会支持得分都有显著提高(社会支持组的得分显著高于自助组)。被试的领悟社会支持得分与有无社会支持被试的 ICBT 干预效果存在交互作用, 有支持小组的ICBT对低领悟社会支持个体干预效果更好, 而无支持小组的ICBT对高领悟社会支持个体干预效果更好。研究结果进一步理解并澄清了社会支持在社交焦虑中的作用, 可为未来临床工作的实践与应用提供了依据和方向。