Cited by 121Virtual Reality Applications and ImpactsMultisensory perception and integrationTactile and Sensory Interactions

Is my hand connected to my body? The impact of body continuity and arm alignment on the virtual hand illusion

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Perez-Marcos, Daniel, Sanchez-Vives, Maria V., Slater, Mel·2012·Cognitive Neurodynamics

Abstract

When a rubber hand is placed on a table top in a plausible position as if part of a person's body, and is stroked synchronously with the person's corresponding hidden real hand, an illusion of ownership over the rubber hand can occur (Botvinick and Cohen 1998). A similar result has been found with respect to a virtual hand portrayed in a virtual environment, a virtual hand illusion (Slater et al. 2008). The conditions under which these illusions occur have been the subject of considerable study. Here we exploited the flexibility of virtual reality to examine four contributory factors: visuo-tactile synchrony while stroking the virtual and the real arms, body continuity, alignment between the real and virtual arms, and the distance between them. We carried out three experiments on a total of 32 participants where these factors were varied. The results show that the subjective illusion of ownership over the virtual arm and the time to evoke this illusion are highly dependent on synchronous visuo-tactile stimulation and on connectivity of the virtual arm with the rest of the virtual body. The alignment between the real and virtual arms and the distance between these were less important. It was found that proprioceptive drift was not a sensitive measure of the illusion, but was only related to the distance between the real and virtual arms.

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  • The virtual hand illusion persists through radical transformations such as extensive elongation of the arm or change in the virtual hand position with respect to the real one.

    “This illusion persists through radical transformations such as extensive elongation of the arm [51] or change in the virtual hand position [52] with respect to the real one.”

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Authors
Perez-Marcos, D., Sanchez-Vives, M. V., & Slater, M.
Affiliations
Institució Catalana de Recerca i Estudis Avançats (ES)
Corresponding author
Slater, Mel
Venue
Cognitive Neurodynamics
Published
2011-10-27
Volume
6
Issue
4
Pages
295-305
ISSN
  • 1871-4080 (ISSN-L)
  • 1871-4099
OpenAlex
W1971043313
Cited by
121
References
28
Citations by year
2026: 6 · 2025: 5 · 2024: 4 · 2023: 4 · 2022: 16 · 2021: 15 · 2020: 10 · 2019: 10 · 2018: 6 · 2017: 11 · 2016: 15 · 2015: 8 · 2014: 7 · 2013: 2 · 2012: 1
FWCI
5.65
Type
journal article
Language
en
Open access
Locations
  • Cognitive Neurodynamics (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Dipòsit Digital de la Universitat de Barcelona (Universitat de Barcelona) (acceptedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • RECERCAT (Consorci de Serveis Universitaris de Catalunya) (submittedVersion, public-domain)
Funders
  • European Commission (248620)
  • FP7 Ideas: European Research Council (227985)
Topics
  • Physical Sciences › Computer Science › Human-Computer Interaction › Virtual Reality Applications and Impacts
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Multisensory perception and integration
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
Keywords
virtual hand illusion, rubber hand illusion, body ownership, virtual reality, proprioception, proprioceptive drift, body schema, multisensory integration

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