SRL Proxemics: Spatial Guidelines for Supernumerary Robotic Limbs in Near-Body Interactions
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arXiv
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| Format: | Preprint |
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2026
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| author | Zhou, Hongyu fan, Chia-An Dong, Yihao Takashita, Shuto Inami, Masahiko Sarsenbayeva, Zhanna Withana, Anusha |
| author_facet | Zhou, Hongyu fan, Chia-An Dong, Yihao Takashita, Shuto Inami, Masahiko Sarsenbayeva, Zhanna Withana, Anusha |
| contents | Wearable supernumerary robotic limbs (SRLs) sit at the intersection of human augmentation and embodied AI, transforming into extensions of the human body. However, their movements within the intimate near-body space raise unresolved challenges for perceived safety, user control, and trust. In this paper, we present results from a Wizard-of-Oz study (n=18), where participants completed near-body collaboration tasks with SRLs to explore these challenges. We collected qualitative data through think-aloud protocols and semi-structured interviews, complemented by physiological signals and post-task ratings. Findings indicate that greater autonomy did not inherently enhance perceived safety or trust. Instead, participants identified near-body zones and paired them with clear coordination rules. They also expressed expectations for how different arm components should behave, shaping preferences around autonomy, perceived safety, and trust. Building on these insights, we introduce SRL Proxemics, a zone- and segment-level design framework showing that autonomy is not monolithic: perceived safety hinges on spatially calibrated, legible behaviors, not higher autonomy. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_00494 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | SRL Proxemics: Spatial Guidelines for Supernumerary Robotic Limbs in Near-Body Interactions Zhou, Hongyu fan, Chia-An Dong, Yihao Takashita, Shuto Inami, Masahiko Sarsenbayeva, Zhanna Withana, Anusha Human-Computer Interaction Wearable supernumerary robotic limbs (SRLs) sit at the intersection of human augmentation and embodied AI, transforming into extensions of the human body. However, their movements within the intimate near-body space raise unresolved challenges for perceived safety, user control, and trust. In this paper, we present results from a Wizard-of-Oz study (n=18), where participants completed near-body collaboration tasks with SRLs to explore these challenges. We collected qualitative data through think-aloud protocols and semi-structured interviews, complemented by physiological signals and post-task ratings. Findings indicate that greater autonomy did not inherently enhance perceived safety or trust. Instead, participants identified near-body zones and paired them with clear coordination rules. They also expressed expectations for how different arm components should behave, shaping preferences around autonomy, perceived safety, and trust. Building on these insights, we introduce SRL Proxemics, a zone- and segment-level design framework showing that autonomy is not monolithic: perceived safety hinges on spatially calibrated, legible behaviors, not higher autonomy. |
| title | SRL Proxemics: Spatial Guidelines for Supernumerary Robotic Limbs in Near-Body Interactions |
| topic | Human-Computer Interaction |
| url | https://arxiv.org/abs/2602.00494 |