School of Business, Sejong University , Gwangjin-gu, Seoul, Korea.
Cyberpsychol Behav Soc Netw. 2018 Mar;21(3):157-167. doi: 10.1089/cyber.2017.0476.
Drawing from social comparison theory, parasocial interaction (PSI) theory, and the literature on envy, a randomized experiment addressed the dynamics of body image, fame, and envy in the context of foodies' foodporn posting on Instagram. Using a 2 (foodie's body type: fat vs. thin) × 2 (foodie's Instagram popularity: unpopular vs. popular) between-subjects design, this experiment (N = 141) examined the effects of an Instagram foodie's body shape and popularity level on peer Instagram users' eating intention, envy, and PSI with the Instagram foodie. The results showed main effects of an Instagram foodie's body shape on peer users' eating intention, and moderating effects of users' self-esteem, body mass index, perfectionism, anorexia, and bulimia nervosa. Additionally, envy mediated the effects of the Instagram foodie's body shape and popularity on peer users' PSI with the foodie and intention to build an Instagram-based friendship. Theoretical contributions to the literature on social comparison and eating disorder and practical implications for fitspiration and social media-based health interventions are discussed.
本研究运用社会比较理论、准社会关系理论以及关于嫉妒的文献，通过一项随机实验考察了美食博主在 Instagram 上发布美食照片这一情境下的身体意象、名气和嫉妒的动态变化。该实验采用 2（美食博主体型：胖与瘦）×2（美食博主在 Instagram 上的受欢迎程度：不受欢迎与受欢迎）的被试间设计，共有 141 名被试参与了实验。实验考察了美食博主的体型和受欢迎程度对同伴 Instagram 用户的进食意向、嫉妒和与该博主的准社会关系的影响。结果表明，美食博主的体型对同伴用户的进食意向有显著影响，且用户的自尊、体重指数、完美主义、厌食症和神经性贪食症会调节这种影响。此外，嫉妒在美食博主的体型和受欢迎程度对同伴用户与该博主的准社会关系和建立基于 Instagram 的友谊的意向的影响中起中介作用。本研究对社会比较和饮食失调领域的文献具有理论贡献，对基于 Fitspiration 和社交媒体的健康干预具有实际意义。
