ICAT-EGVE2022 - Posters and Demos

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https://diglib.eg.org/handle/10.2312/2633253

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Browsing ICAT-EGVE2022 - Posters and Demos by Author "Fukuoka, Masaaki"

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    Investigating Perception of Multiple Virtual Hands using Startle Response
    (The Eurographics Association, 2022) Mashiyama, Yuki; Fukuoka, Masaaki; Teo, Theophilus; Kondo, Ryota; Sugimoto, Maki; Theophilus Teo; Ryota Kondo
    Studies have been conducted to examine the human body perception of a whole body when having multiple bodies. In this paper, we investigate how does the sense of body ownership and the sense of agency change when a user synchronously moves multiple body parts in a virtual environment. Participants in a demonstration will perform a reaching task for 150 seconds by physically moving their right hands while visualised as one or nine hands in a virtual reality environment. At the end of the reaching task, a threat stimulus is triggered and participants' electromyography are measured as an objective index of the sense of body ownership. Finally, a short survey will be conducted to query the strength of the subjective sense of body ownership and agency.
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    The Sense of Agency, Sense of Body Ownership with a Semi-autonomous Telexistence Robot under Shared / Unshared Intention Conditions
    (The Eurographics Association, 2022) Takechi, Tohru; Nakamura, Fumihiko; Fukuoka, Masaaki; Ienaga, Naoto; Sugimoto, Maki; Theophilus Teo; Ryota Kondo
    With the increasing popularity of robots such as teleoperated semi-autonomous robots, sense of agency (SoA) and sense of body ownership (SoBO) with semi-autonomous robots is becoming increasingly important. This study investigates the changes in the SoA and SoBO when the user control weight of the robot is altered in human-robot collaboration. Through an experiment, we compared the SoA and SoBO in a pick-and-place task using a robotic arm under the conditions in which the autonomous robotic arm shared and unshared the target with the participant. The results showed that the SoA and the SoBO increased with the increase of user control weight. However, the user control weight of 75% achieved a slightly higher SoA than that of 100%.