Nakamura Koyo, Ohta Anri, Uesaki Shoko, Maeda Mariko, Kawabata Hideaki
Faculty of Science and Engineering, Waseda University, Japan.
Japan Society for the Promotion of Science, Japan.
Heliyon. 2020 Oct 2;6(10):e05148. doi: 10.1016/j.heliyon.2020.e05148. eCollection 2020 Oct.
Facial appearance has essential consequences in various social interactions. Previous studies have shown that although people can perceive a variety of impressions from a face, these impressions may form from a relatively small number of core dimensions in the psychological impression space (e.g., valence and dominance). However, few studies have thus far examined which facial shape features contribute to perceptions of the core trait impression dimensions for Asian female faces. This study aimed to identify the commonalities between various facial impressions of Japanese female faces and determine the facial shape components associated with such impressions by applying geometric morphometric (GMM) analysis. In Experiment 1 (Modeling study), Japanese female faces were evaluated in terms of 18 trait adjectives that are frequently used to describe facial appearance in daily life. We found that Japanese female facial appearance is indeed evaluated mainly on the valence and dominance dimensions. In Experiment 2 (Validation study), we confirmed that all the trait impressions were quantitatively manipulated by transforming the facial shape features associated with valence and dominance. Our results provide evidence that various facial impressions derived from these two underlying dimensions can be quantitatively manipulated by transforming facial shape using the GMM techniques.
面部外观在各种社交互动中有着至关重要的影响。先前的研究表明，尽管人们可以从一张脸上感知到各种各样的印象，但这些印象可能是由心理印象空间中相对较少的核心维度形成的（例如，效价和支配性）。然而，迄今为止，很少有研究考察哪些面部形状特征会影响对亚洲女性面部核心特质印象维度的认知。本研究旨在通过应用几何形态测量（GMM）分析来确定日本女性面部各种面部印象之间的共性，并确定与这些印象相关的面部形状成分。在实验1（建模研究）中，根据18个在日常生活中经常用来描述面部外观的特质形容词对日本女性面部进行评估。我们发现，日本女性的面部外观确实主要是根据效价和支配性维度来评估的。在实验2（验证研究）中，我们证实，通过改变与效价和支配性相关的面部形状特征，可以对所有特质印象进行定量操纵。我们的研究结果表明，利用GMM技术对面部形状进行改变，可以定量操纵源自这两个潜在维度的各种面部印象。
