Multiple Mechanisms in the Perception of Face Gender: Effect of Sex-Irrelevant Features
Multiple Mechanisms in the Perception of Face Gender: Effect of Sex-Irrelevant Features
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DOI：
10.1037/a0020369
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发表时间：
2011-06-01
影响因子：
2.1
通讯作者：
Ishihara, Shigekazu
中科院分区：
文献类型：
--
作者：
Komori, Masashi;Kawamura, Satoru;Ishihara, Shigekazu
研究了性别相关和性别无关的面部特征对面部性别评价的影响。参与者对48张男性面部照片和48张女性面部照片的男性气质和女性气质进行了评价。每张面部照片上测量了80个特征点。使用广义的Procrustes分析，面部形状被转换为多维向量，以平均脸为起点。每个矢量被分解为一个性别相关的子矢量和一个性别无关的子矢量，分别平行和正交的主要男性-女性轴。对性别无关子向量进行主成分分析（PCA）。一个主成分与感知的男性气质和女性气质呈负相关，另一个只与女性气质相关，尽管这两个成分都与男性-女性维度正交（因此根据定义，性别无关）。这些结果表明，面部性别的评价取决于性别无关以及性别相关的面部特征。
Effects of sex-relevant and sex-irrelevant facial features on the evaluation of facial gender were investigated. Participants rated masculinity of 48 male facial photographs and femininity of 48 female facial photographs. Eighty feature points were measured on each of the facial photographs. Using a generalized Procrustes analysis, facial shapes were converted into multidimensional vectors, with the average face as a starting point. Each vector was decomposed into a sex-relevant subvector and a sex-irrelevant subvector which were, respectively, parallel and orthogonal to the main male-female axis. Principal components analysis (PCA) was performed on the sex-irrelevant subvectors. One principal component was negatively correlated with both perceived masculinity and femininity, and another was correlated only with femininity, though both components were orthogonal to the male-female dimension (and thus by definition sex-irrelevant). These results indicate that evaluation of facial gender depends on sex-irrelevant as well as sex-relevant facial features.