Non-human Looking Robot Arms Induce Illusion of Embodiment

Laura Aymerich-Franch; Damien Petit; Gowrishankar Ganesh; Abderrahmane Kheddar

Non-human Looking Robot Arms Induce Illusion of Embodiment

Laura Aymerich-Franch Damien Petit ^{1, 2} Gowrishankar Ganesh ^{3, 2} Abderrahmane Kheddar ^{3, 2}

1 CNRS-AIST JRL - Joint Robotics Laboratory [Japan]

2 IDH - Interactive Digital Humans

LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier

3 CNRS-AIST JRL - Joint Robotics Laboratory [France]

Abstract : We examine whether non-human looking humanoid robot arms can be perceived as part of one’s own body. In two subsequent experiments, participants experi- enced high levels of embodiment of a robotic arm that had a blue end effector with no fingers (Experiment 1) and of a robotic arm that ended with a gripper (Experiment 2) when it was stroked synchronously with the real arm. Levels of embodiment were significantly higher than the correspond- ing asynchronous condition and similar to those reported for a human-looking arm. Additionally, we found that visuo- movement synchronization also induced embodiment of the robot arm and that embodiment was even partially main- tained when the robot hand was covered with a blue plastic cover. We conclude that humans are able to experience a strong sense of embodiment towards non-human looking robot arms. The results have important implications for the domains related to robotic embodiment.

Keywords : Humanoid robot embodiment Non-human looking robot Body ownership illusion Rubber-hand illusion

Document type :

Journal articles

Domain :

Mathematics [math] / Logic [math.LO]

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https://hal-lirmm.ccsd.cnrs.fr/lirmm-01925587
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Non-human Looking Robot Arms Induce Illusion of Embodiment

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Non-human Looking Robot Arms Induce Illusion of Embodiment

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