Human- or object-like? Cognitive anthropomorphism of humanoid robots

PLoS One. 2022 Jul 26;17(7):e0270787. doi: 10.1371/journal.pone.0270787. eCollection 2022.

Abstract

Across three experiments (N = 302), we explored whether people cognitively elaborate humanoid robots as human- or object-like. In doing so, we relied on the inversion paradigm, which is an experimental procedure extensively used by cognitive research to investigate the elaboration of social (vs. non-social) stimuli. Overall, mixed-model analyses revealed that full-bodies of humanoid robots were subjected to the inversion effect (body-inversion effect) and, thus, followed a configural processing similar to that activated for human beings. Such a pattern of finding emerged regardless of the similarity of the considered humanoid robots to human beings. That is, it occurred when considering bodies of humanoid robots with medium (Experiment 1), high and low (Experiment 2) levels of human likeness. Instead, Experiment 3 revealed that only faces of humanoid robots with high (vs. low) levels of human likeness were subjected to the inversion effects and, thus, cognitively anthropomorphized. Theoretical and practical implications of these findings for robotic and psychological research are discussed.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cognition
  • Humans
  • Robotics*

Grants and funding

This work has been supported by Curiosity Driven (2017)- D36C18001720005 grant to LA and funded by the University of Genova. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.