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ENtry, Occupancy, EXit (NOX): A Model of Human-Robot Territorial Dynamics

  • Robin Bretin
  • , Robin Dheilly
  • , Jessica R. Cauchard

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Spatial tensions in real-world deployments of autonomous robots (e.g., sidewalk conflicts, boundary violations) expose a critical oversight: the neglect of space as a social construct through which people form expectations and regulate access and behavior, that is, Territoriality. Beyond proxemics, Human-Robot Interaction lacks the theoretical models and shared vocabulary needed to support empirical research on this dimension. To address this gap, we adapt insights from environmental psychology to develop NOX (ENtry, Occupancy, EXit), a stage-based model of human-robot territorial dynamics. NOX pinpoints sources of robot territorial infringement (i.e., friction points) which were validated in a between-subjects vignette study (N = 290). Our findings indicate that mismatches between robot behavior and human expectations at these friction points are associated with more negative affect, higher defensive intent, and lower perceived appropriateness. NOX clarifies this facet of human-robot spatial relationship and identifies future directions for design and research toward harmonious integration in human environments.

Original languageEnglish
Title of host publicationCHI 2026 - Proceedings of the 2026 CHI Conference on Human Factors in Computing Systems
EditorsNuria Oliver, David A. Shamma, Heloisa Candello, Pablo Cesar, Pedro Lopes, Alessandro Bozzon, Thomas Kosch, Vera Liao, Xiaojuan Ma, Valentino Artizzu, Fiona Draxler, Gustavo Lopez, Anke V. Reinschluessel, Xin Tong, Phoebe O. Toups Dugas
PublisherAssociation for Computing Machinery
ISBN (Electronic)9798400722783
DOIs
StatePublished - 13 Apr 2026
Externally publishedYes
Event2026 CHI Conference on Human Factors in Computing Systems, CHI 2026 - Barcelona, Spain
Duration: 13 Apr 202617 Apr 2026

Publication series

NameConference on Human Factors in Computing Systems - Proceedings

Conference

Conference2026 CHI Conference on Human Factors in Computing Systems, CHI 2026
Country/TerritorySpain
CityBarcelona
Period13/04/2617/04/26

Keywords

  • Human-Robot Interaction
  • Model
  • Proxemics
  • Territoriality
  • Theory

ASJC Scopus subject areas

  • Human-Computer Interaction
  • Computer Graphics and Computer-Aided Design
  • Software

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