Lu Fangcao, Sun Yanqing
Department of Media and Communication, City University of Hong Kong, Hong Kong, China.
School of Journalism and Communication, Hunan University, China.
Comput Human Behav. 2022 Feb;127:107057. doi: 10.1016/j.chb.2021.107057. Epub 2021 Oct 22.
This study aims to examine whether and how user-generated comments and reaction emojis on COVID-19 vaccine-promoting Facebook posts induce psychological reactance to posts and vaccine hesitancy in audiences of the posts. An online experiment including 465 American adults showed that, compared with COVID-19 vaccine promotion posts accompanied by pro-vaccine comments, those accompanied by anti-vaccine comments provoked greater reactance in audiences through the mediating effects of bandwagon perception and the presumed influence of the posts on others. Greater reactance, in turn, increased audiences' COVID-19 vaccine hesitancy. Additionally, reaction emojis altered the comments' effects such that pro-vaccine comments triggered less reactance than anti-vaccine comments when the pro-vaccine comments were accompanied by agreement emojis (i.e., "like" and "love"); whereas there was no significant difference between pro-vaccine comments and anti-vaccine comments in reactance when the pro-vaccine comments were accompanied by rejection emojis (i.e., "angry" and "sad"). Furthermore, audiences' pre-existing attitudes did not affect the effects of opinion cues on their' reactance and vaccine hesitancy.
本研究旨在探讨用户在脸书上发布的关于新冠疫苗推广帖子下的评论和反应表情符号是否以及如何引发帖子受众对这些帖子的心理抗拒以及疫苗犹豫情绪。一项针对465名美国成年人的在线实验表明，与附有支持疫苗评论的新冠疫苗推广帖子相比，附有反疫苗评论的帖子通过从众感知的中介作用以及帖子对他人的假定影响，在受众中引发了更大的抗拒情绪。而更大的抗拒情绪反过来又增加了受众对新冠疫苗的犹豫程度。此外，反应表情符号改变了评论的效果，当支持疫苗的评论附有赞同表情符号（即“赞”和“爱”）时，这些评论引发的抗拒情绪比反疫苗评论少；而当支持疫苗的评论附有反对表情符号（即“愤怒”和“悲伤”）时，支持疫苗的评论和反疫苗评论在引发抗拒情绪方面没有显著差异。此外，受众先前的态度并未影响意见线索对其抗拒情绪和疫苗犹豫程度的影响。
