Cross-Cultural Differences in Perception of Facial Trustworthiness Based on Geometric Morphometric Morphs

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS
V. Rostovtseva, Marina L. Butovskaya, A. Mezentseva, N. Dashieva, Anna A. Korotkova, Alexander Kavina, Mewa Singh
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Abstract

We report on an experimental study that explores cross-cultural differences in perception of trustworthiness based on facial traits. In the first part of the experiment, individual male and female neutral photographs of Buryats (Mongolian people of Eastern Siberia) were rated on trustworthiness by men and women from the same population. The trustworthy-looking facial traits were investigated by means of geometric morphometrics, and analysis of the facial action units using artificial neural network (FaceReader). Significant associations between facial traits and perceived trustworthiness were revealed only for male photographs rated by men. Facial shape pattern along trustworthy–untrustworthy vector corresponded to the facial femininity-masculinity vector for Buryats, as well as to the positive-negative vector of the emotional connotation of the neutral facial shape. “Untrustworthy” facial shape was characterized by relatively narrower lower jaw, lower set eyebrows, as well as a lower position of the “Brow Lowerer” facial action unit—a frown. In the second part of the experiment, two geometric morphometric morphs, representing “trustworthy” and “untrustworthy” Buryat male facial shapes, were judged on trustworthiness by male representatives of Buryat, Tuvan (Mongolian people of Southern Siberia), Russian, Indian, and East African (Tanzanians) cultures. The results revealed that in all studied samples the “trustworthy” male portrait was rated significantly higher on trustworthiness than “untrustworthy” one. However, perceived trustworthiness, and agreement of portrait judgments with those of Buryats significantly declined with geographic and genetic distance between populations.
基于几何形态的面部可信度感知的跨文化差异
我们报告了一项实验研究,该研究探讨了基于面部特征的可信度感知的跨文化差异。在实验的第一部分,来自同一人群的男性和女性对布里亚特人(东西伯利亚的蒙古人)的中性照片进行了可信度评分。通过几何形态计量学和人工神经网络(FaceReader)的面部动作单元分析,研究了值得信赖的面部特征。结果显示,只有由男性评定的男性照片中,面部特征与感知可信度之间存在显著关联。值得信任-不值得信任 "向量上的面部形状模式与布里亚特人的面部女性化-男性化向量以及中性面部形状情感内涵的正负向量相对应。"不可信 "脸型的特征是下颌相对较窄、眉毛较低,以及 "眉毛较低 "面部动作单元--皱眉的位置较低。在实验的第二部分,布里亚特人、图瓦人(南西伯利亚的蒙古人)、俄罗斯人、印度人和东非人(坦桑尼亚人)的男性代表对代表 "值得信赖 "和 "不可信赖 "的布里亚特男性脸型的两种几何形态进行了可信度评判。研究结果显示,在所有研究样本中,"值得信赖 "的男性肖像的可信度明显高于 "不值得信赖 "的男性肖像。然而,随着不同人群之间地理和遗传距离的拉近,对可信度的感知以及肖像判断与布里亚特人肖像判断的一致性明显下降。
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来源期刊
ACS Applied Bio Materials
ACS Applied Bio Materials Chemistry-Chemistry (all)
CiteScore
9.40
自引率
2.10%
发文量
464
期刊介绍: ACS Applied Bio Materials is an interdisciplinary journal publishing original research covering all aspects of biomaterials and biointerfaces including and beyond the traditional biosensing, biomedical and therapeutic applications. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important bio applications. The journal is specifically interested in work that addresses the relationship between structure and function and assesses the stability and degradation of materials under relevant environmental and biological conditions.
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