Does Random Movements mean Random Results? Why Asynchrony in Experiments on Body Ownership does not Work as Intended

要旨

Effects of embodying virtual avatars are routinely validated experimentally by comparing synchronous and asynchronous movements between virtual and real bodies. This experimental paradigm, however, lacks justification, validation, and standardization. Asynchrony is currently implemented in numerous ways, such as through delayed, dislocated, or prerecorded movements, and these may impact embodiment and user experience distinctively. An online study (N = 202) revealed that variations of asynchrony cause disparate responses to embodiment and user experience, with prerecorded movements distorting embodiment the most. A think-aloud study (N = 16) revealed that asynchronous conditions lead to peculiar and oftentimes negative experiences. Furthermore, asynchronous conditions in some cases maintain, rather than break the body ownership illusion, as participants imitate the virtual body. Our results show that asynchrony in experiments on embodiment entails profound validity issues and should therefore be used with caution.

受賞
Honorable Mention
著者
Olga Iarygina
IT University of Copenhagen, Copenhagen, Denmark
Kasper Hornbæk
University of Copenhagen, Copenhagen, Denmark
Aske Mottelson
IT University of Copenhagen, Copenhagen, Denmark
DOI

10.1145/3706598.3713506

論文URL

https://dl.acm.org/doi/10.1145/3706598.3713506

動画

会議: CHI 2025

The ACM CHI Conference on Human Factors in Computing Systems (https://chi2025.acm.org/)

セッション: Embodiment and Immersion

Annex Hall F203
7 件の発表
2025-04-29 18:00:00
2025-04-29 19:30:00
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