Cited by 101Virtual Reality Applications and ImpactsMultisensory perception and integrationFree Will and Agency

Network activity underlying the illusory self‐attribution of a dummy arm

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Limanowski, Jakub, Blankenburg, Felix·2015·Human Brain Mapping

Abstract

Neuroimaging has demonstrated that the illusory self‐attribution of body parts engages frontal and intraparietal brain areas, and recent evidence further suggests an involvement of visual body‐selective regions in the occipitotemporal cortex. However, little is known about the principles of information exchange within this network. Here, using automated congruent versus incongruent visuotactile stimulation of distinct anatomical locations on the participant's right arm and a realistic dummy counterpart in an fMRI scanner, we induced an illusory self‐attribution of the dummy arm. The illusion consistently activated a left‐hemispheric network comprising ventral premotor cortex (PMv), intraparietal sulcus (IPS), and body‐selective regions of the lateral occipitotemporal cortex (LOC). Importantly, during the illusion, the functional coupling of the PMv and the IPS with the LOC increased substantially, and dynamic causal modeling revealed a significant enhancement of connections from the LOC and the secondary somatosensory cortex to the IPS. These results comply with the idea that the brain's inference mechanisms rely on the hierarchical propagation of prediction error. During illusory self‐attribution, unpredicted ambiguous sensory input about one's body configuration may result in the generation of such prediction errors in visual and somatosensory areas, which may be conveyed to parietal integrative areas. Hum Brain Mapp 36:2284–2304, 2015. © 2015 Wiley Periodicals, Inc.

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Crossref · 10.1002/hbm.22770

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Authors
Limanowski, J., & Blankenburg, F.
Affiliations
Humboldt-Universität zu Berlin (DE)
Corresponding author
Limanowski, Jakub
Venue
Human Brain Mapping
Publisher
Wiley
Published
2015-02-24
Volume
36
Issue
6
Pages
2284-2304
ISSN
  • 1065-9471 (ISSN-L)
  • 1097-0193
OpenAlex
W2163089591
Cited by
101
References
85
Citations by year
2026: 5 · 2025: 6 · 2024: 7 · 2023: 6 · 2022: 7 · 2021: 18 · 2020: 12 · 2019: 13 · 2018: 10 · 2017: 7 · 2016: 6 · 2015: 4
FWCI
17.03
Type
journal article
Language
en
Open access
Locations
  • Human Brain Mapping (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
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 › Free Will and Agency
Keywords
body ownership, ventral premotor cortex, intraparietal sulcus, secondary somatosensory cortex, functional connectivity, prediction error, hierarchical prediction, dynamic causal modeling, body schema
MeSH terms
Adult, Arm, Brain, Brain Mapping, Female, Humans, Illusions, Magnetic Resonance Imaging, Male, Photic Stimulation, Self Concept, Young Adult

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