As the nature of human-robot relationships have become increasingly bound to shift from supervisor–machine to friend–companion, people have exhibited an increasing interest in making social judgments toward such anthropomorphic objects, such as trustworthiness. However, the facial features of social robots and their potential effect on anthropomorphic trustworthiness are seldom analyzed and discussed comprehensively. This study examined whether the trustworthiness perception toward a social robot shared similarity with baby schema features on the human face. It also explored the effects of different combinations of baby schema facial features, especially the positions and sizes of the eyes and mouth, on facial anthropomorphic trustworthiness. A 5-way mixed experiment (N = 270) was conducted accordingly. The results indicated that people would experience a high level of facial anthropomorphic trustworthiness toward robots with baby schema features (i.e., large eyes, with medium vertical and horizontal positions of the eyes and mouth). This paper contributes to the literature on facial anthropomorphic trustworthiness in human-robot interaction and provides suggestions for social robot design.

随着人机关系的性质越来越必然从主管-机器转变为朋友-伴侣，人们对对此类拟人化对象（例如可信度）做出社会判断表现出越来越大的兴趣。然而，很少对社交机器人的面部特征及其对拟人可信度的潜在影响进行全面分析和讨论。这项研究检查了对社交机器人的可信度感知是否与人脸上的婴儿图式特征具有相似性。它还探讨了婴儿图式面部特征的不同组合，尤其是眼睛和嘴巴的位置和大小，对面部拟人可信度的影响。相应地进行了 5 路混合实验 (N = 270)。结果表明，人们会对具有婴儿图式特征（即大眼睛，眼睛和嘴巴的垂直和水平位置中等）的机器人具有高度的面部拟人可信度。本文对人机交互中面部拟人可信度的文献做出了贡献，并为社交机器人设计提供了建议。