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Robot's Inner Speech Effects on Human Trust and Anthropomorphism.

Arianna Pipitone1,2, Alessandro Geraci3, Antonella D'Amico3

  • 1Department of Humanities, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy.

International Journal of Social Robotics
|June 26, 2023
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Summary
This summary is machine-generated.

This study explored how robots with inner speech systems affect human perception. Robots exhibiting overt self-talk enhanced perceived animacy and intelligence, improving human-robot interaction.

Keywords:
AnthropomorphismHuman–robot interactionInner speechRobotSelf-talkTrust

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Area of Science:

  • Human-Computer Interaction
  • Cognitive Psychology
  • Robotics

Background:

  • Inner speech is a covert internal conversation crucial for human cognition.
  • Simulating inner speech in robots may enhance human trust and perception of robot qualities.
  • Existing research lacks empirical evidence on the impact of robot inner speech on user perception.

Purpose of the Study:

  • To investigate the influence of a robot's overt inner speech system on human users' perceptions.
  • To assess the impact on trust, anthropomorphism, animacy, likeability, intelligence, and safety.
  • To compare user perceptions between robots with and without inner speech simulation.

Main Methods:

  • A pre-test/post-test control group design was employed.
  • Participants interacted with either a robot with an overt inner speech system (experimental) or a robot with only outer speech (control).
  • Questionnaires measured perceptions of inner speech and trust before and after interaction.

Main Results:

  • The experimental group, interacting with the robot exhibiting inner speech, showed significant differences in pre-test and post-test assessments.
  • Robot inner speech positively influenced participants' perceptions of the robot's animacy and intelligence.
  • No significant differences were noted in other measured perceptions like anthropomorphism, likeability, or safety.

Conclusions:

  • Implementing overt inner speech systems in robots can enhance user perception of robot intelligence and animacy.
  • This finding has implications for designing more engaging and trustworthy human-robot interactions.
  • Further research is needed to explore the nuances of inner speech simulation in diverse robotic applications.