本研究以意见气候的相关假说为研究框架，以观众对影视剧角色的态度为切入点，试图探究影视剧弹幕对大学生观众态度的影响。研究采用控制实验法，并基于内隐联想测验（IAT）的实验范式展开。研究发现：1）影视剧弹幕无法影响观众对正面角色的态度方向，却能影响观众对反面角色的态度方向。根据社会判断理论，这可能是因为观众对不同角色的态度处于不同的接受区域，其态度改变的可能性不同。2）影视剧弹幕无法影响观众对角色态度的强度（极端性）。可能的解释是，观众对影视剧片段的事件卷入度普遍较低，观众对弹幕用户的归属感不强，因而其态度未表现出强度上的差异。基于以上发现可以得出：意见气候并非个体态度改变的充分条件，其影响可能受到话题类型、个体差异、态度对象等因素的制约。

Taking the hypothesis of Opinion Climate as the research framework, this research attempts to explore the impact of Time-sync Danmaku Comment on college audiences' attitude towards the characters of movies and TV plays. In this study, the controlled experiment was used and the experimental paradigm was based on the Implicit Association Test (IAT). The findings are as follows: 1) The Time-sync Danmaku Comment can not affect audiences' attitude towards positive characters, but it can influence attitude towards negative characters. According to Social Judgment Theory, it’s probably because the audiences' attitude to different characters are in different acceptance zones, in which the possibility of their attitude changing is different. 2) The intensity of audiences' attitude towards the characters cannot be affected by the Time-sync Danmaku Comment. A possible explanation is that audiences generally have a low degree of issue involvement in this film and TV episodes, so they do not show extreme attitude. Finally, we come to the conclusion that Opinion Climate is not a sufficient condition for the change of individual attitude, which is influenced by many factors such as topics, individual differences and attitude objects.