The effect of facial features on facial anthropomorphic trustworthiness in social robots

Yao Song, Ameersing Luximon, Yan Luximon

Research output: Journal article publicationJournal articleAcademic researchpeer-review

20 Citations (Scopus)


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.

Original languageEnglish
Article number103420
JournalApplied Ergonomics
Publication statusPublished - Jul 2021


  • Baby schema
  • Eyes
  • Facial anthropomorphic trustworthiness
  • Mouth
  • Social robot

ASJC Scopus subject areas

  • Human Factors and Ergonomics
  • Physical Therapy, Sports Therapy and Rehabilitation
  • Safety, Risk, Reliability and Quality
  • Engineering (miscellaneous)


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