ArticleScientific reports2019
Visual and somatosensory information contribute to distortions of the body model.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 23 citations in OpenAlex.
- Proprioception impacts body perception in healthy aging - Insights from a psychophysical and computational approach.iScience · 2025Article
- The characteristics of the implicit body model of the trunk.Perception · 2024Article
- Proprioceptive acuity for landmarks on the hand and digits.Experimental brain research · 2024Article
- A Body Map Beyond Perceptual Experience.Journal of cognition · 2024Article
- Preserved tactile distance estimation despite body representation distortions in individuals with fibromyalgia.Frontiers in pain research (Lausanne, Switzerland) · 2024Article
- A conceptual framework on body representations and their relevance for mental disorders.Frontiers in psychology · 2023Review
- Persistence of metric biases in body representation during the body ownership illusion.PloS one · 2022Article
- Exploring the Interaction Between Handedness and Body Parts Ownership by Means of the Implicit Association Test.Frontiers in human neuroscience · 2021Article
- Proprioceptive errors in the localization of hand landmarks: What can be learnt about the hand metric representation?PloS one · 2020Article
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Authors and funding
3 authors at 2 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Distorted representations of the body are observed in healthy individuals as well as in neurological and psychiatric disorders. Distortions of the body model have been attributed to the somatotopic cerebral representation. Recently, it has been demonstrated that visual biases also contribute to those distortions. To better understand the sources of such distortions, we compared the metric representations across five body parts affording different degrees of tactile sensitivity and visual accessibility. We evaluated their perceived dimensions using a Line Length Judgment task. We found that most body parts were underestimated in their dimensions. The estimation error relative to their length was predicted by their tactile acuity, supporting the influence of the cortical somatotopy on the body model. However, tactile acuity did not explain the distortions observed for the width. Visual accessibility in turn does appear to mediate body distortions, as we observed that the dimensions of the dorsal portion of the neck were the only ones accurately perceived. Coherent with the multisensory nature of body representations, we argue that the perceived dimensions of body parts are estimated by integrating visual and somatosensory information, each weighted differently, based on their availability for a given body part and a given spatial dimension.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.