Cited by 39Multisensory perception and integrationVirtual Reality Applications and ImpactsTactile and Sensory Interactions

Peri-personal Space as a Prior in Coupling Visual and Proprioceptive Signals

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Noel, Jean-Paul, Samad, Majed, Doxon, Andrew, Clark, Justin, Keller, Sean, Di Luca, Massimiliano·2018·Scientific Reports

Abstract

It has been suggested that the integration of multiple body-related sources of information within the peri-personal space (PPS) scaffolds body ownership. However, a normative computational framework detailing the functional role of PPS is still missing. Here we cast PPS as a visuo-proprioceptive Bayesian inference problem whereby objects we see in our environment are more likely to engender sensations as they come near to the body. We propose that PPS is the reflection of such an increased a priori probability of visuo-proprioceptive coupling that surrounds the body. To test this prediction, we immersed participants in a highly realistic virtual reality (VR) simulation of their right arm and surrounding environment. We asked participants to perform target-directed reaches toward visual, proprioceptive, and visuo-proprioceptive targets while visually displaying their reaching arm (body visible condition) or not (body invisible condition). Reach end-points are analyzed in light of the coupling prior framework, where the extension of PPS is taken to be represented by the spatial dispersion of the coupling prior between visual and proprioceptive estimates of arm location. Results demonstrate that if the body is not visible, the spatial dispersion of the visuo-proprioceptive coupling relaxes, whereas the strength of coupling remains stable. By demonstrating a distance-dependent alteration in visual and proprioceptive localization attractive pull toward one another (stronger pull at small spatial discrepancies) when the body is rendered invisible - an effect that is well accounted for by the visuo-proprioceptive coupling prior - the results suggest that the visible body grounds visuo-proprioceptive coupling preferentially in the near vs. far space.

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Authors
Noel, J.-P., Samad, M., Doxon, A., Clark, J., Keller, S., & Di Luca, M.
Affiliations
  • Vanderbilt University (US)
  • University of California, Los Angeles (US)
  • Meta (United States) (US)
Venue
Scientific Reports
Published
2018-10-25
Volume
8
Issue
1
Pages
15819-15819
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2896972046
Cited by
39
References
84
Citations by year
2026: 3 · 2025: 4 · 2024: 4 · 2023: 2 · 2022: 5 · 2021: 8 · 2020: 8 · 2019: 5
FWCI
6.87
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • University of Birmingham Research Portal (University of Birmingham) (submittedVersion, cc-by)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Multisensory perception and integration
  • Physical Sciences › Computer Science › Human-Computer Interaction › Virtual Reality Applications and Impacts
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
Keywords
peripersonal space, Bayesian inference, body ownership, body visibility, virtual reality, arm reaching, multisensory integration, proprioception, visual localization, spatial dispersion
MeSH terms
Adult, Female, Humans, Male, Middle Aged, Models, Theoretical, Personal Space, Proprioception, Visual Perception, Likelihood Functions, Young Adult

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