Perception of the NAO Robot via Self-Assessments and Behavioural Analyses When Conducting Audiological Tests

Authors: Luke Meyer1, Gloria Araiza Illan1, Laura Rachman1, Deniz Başkent1

1 University Medical Center Groningen

Background: Evaluation of human-robot interaction (HRI) allows for analysis of how one perceives a robotic interface with which they are interacting, and insight into how the design of the interaction could be improved. In the present study we make use of three HRI metrics: self-assessments, behavioural analyses, and task performance, to investigate the perception of 39 young normal-hearing adults had toward a humanoid NAO robot as a primary interface for audiological testing, compared to the standard computer interface. We have previously evaluated task performance, therefore the main focus of the present study is the remaining two HRI metrics.

Methods: To obtain a comprehensive overview of how participants perceived the NAO robot, self-assessments included the Negative Attitudes Towards Robots Scale, Neuroticism- Extraversion-Openness Five Index, System Usability Scale, Sociability in Interaction Scale, Godspeed Questionnaire Series, and a user experience questionnaire. Analysis of behavioural cues was performed on video recorded footage of participants when completing the tests in both the computer and NAO interfaces.

Results: Participants’ self-assessments showed the NAO as the favoured interface, perceived as socially attractive and intelligent, more engaging and enjoyable in comparison to the computer. Participants exhibited more frequent behavioural cues when interacting with the NAO in comparison to the computer, suggesting a more dynamic interaction. More specifically, showing higher occurrences of smiling and laughing when interacting with the NAO, indicating a higher engagement in comparison to the interaction with the computer.

Conclusion: Overall, HRI evaluation showed participants had a positive experience when interacting with the NAO. In conjunction with our previous results, the positive HRI evaluation further displays the potential for future use of the NAO as an auditory testing interface.