文章基本信息

标题：The effect of sad facial expressions on weight judgment
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作者：Weston, Trent D. ; Hass, Norah C. ; Lim, Seung-Lark 等
期刊名称：Frontiers in Psychology
电子版ISSN：1664-1078
出版年度：2015
卷号：6
页码：417-425
DOI：10.3389/fpsyg.2015.00417
出版社：Frontiers Media
摘要：Although the body weight evaluation (e.g., normal or overweight) of others relies on perceptual impressions, it also can be influenced by other psychosocial factors. In this study, we explored the effect of task-irrelevant emotional facial expressions on judgments of body weight and the relationship between emotion-induced weight judgment bias and other psychosocial variables including attitudes towards obese person. Forty-four participants were asked to quickly make binary body weight decisions for 960 randomized sad and neutral faces of varying weight levels presented on a computer screen. The results showed that sad facial expressions systematically decreased the decision threshold of overweight judgments for male faces. This perceptual decision bias by emotional expressions was positively correlated with the belief that being overweight is not under the control of obese persons. Our results provide experimental evidence that task-irrelevant emotional expressions can systematically change the decision threshold for weight judgments, demonstrating that sad expressions can make faces appear more overweight than they would otherwise be judged.
关键词：Emotions; Facial Perception; facial expressions; Obesity; Body Weight