Cited by 128Tactile and Sensory InteractionsMultisensory perception and integrationVisual perception and processing mechanisms

Cross-modal activation of visual cortex during depth perception using auditory substitution of vision

RENIER, L, COLLIGNON, O, POIRIER, C, TRANDUY, D, VANLIERDE, A, BOL, A, VERAART, C, DEVOLDER, A·2005·NeuroImage

Abstract

Previous neuroimaging studies identified multimodal brain areas in the visual cortex that are specialized for processing specific information, such as visual-haptic object recognition. Here, we test whether visual brain areas are involved in depth perception when auditory substitution of vision is used. Nine sighted volunteers were trained blindfolded to use a prosthesis substituting vision with audition both to recognize two-dimensional figures and to estimate distance of an object in a real three-dimensional environment. Using positron emission tomography, regional cerebral blood flow was assessed while the prosthesis was used to explore virtual 3D images; subjects focused either on 2D features (target search) or on depth (target distance comparison). Activation foci were found in visual association areas during both the target search task, which recruited the occipito-parietal cortex, and the depth perception task, which recruited occipito-parietal and occipito-temporal areas. This indicates that some brain areas of the visual cortex are relatively multimodal and may be recruited for depth processing via a sense other than vision.

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Crossref · 10.1016/j.neuroimage.2005.01.047

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Authors
RENIER, L., COLLIGNON, O., POIRIER, C., TRANDUY, D., VANLIERDE, A., BOL, A., VERAART, C., & DEVOLDER, A.
Affiliations
UCLouvain (BE)
Corresponding author
DEVOLDER, A
Venue
NeuroImage
Publisher
Elsevier BV
Published
2005-06
Volume
26
Issue
2
Pages
573-580
ISSN
1053-8119 (ISSN-L)
OpenAlex
W2109357138
Cited by
128
References
82
Citations by year
2026: 1 · 2025: 3 · 2024: 2 · 2023: 38 · 2021: 7 · 2020: 1 · 2019: 5 · 2018: 5 · 2017: 4 · 2016: 4 · 2015: 11 · 2014: 12 · 2013: 2 · 2012: 7
FWCI
2.32
Type
journal article
Language
en
Open access
closed
Locations
  • NeuroImage (publishedVersion)
  • PubMed (publishedVersion)
  • Digital Access to Libraries (Université catholique de Louvain (UCL), l'Université de Namur (UNamur) and the Université Saint-Louis (USL-B)) (submittedVersion)
  • Iris (University of Trento) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Multisensory perception and integration
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
Keywords
depth perception, visual cortex, cross-modal plasticity, visual prosthesis, distance estimation, visual association areas, parieto-occipital cortex, occipitotemporal cortex, target search
MeSH terms
Acoustic Stimulation, Adult, Auditory Perception, Cerebrovascular Circulation, Data Interpretation, Statistical, Depth Perception, Form Perception, Humans, Image Interpretation, Computer-Assisted, Male, Nerve Net, Neuronal Plasticity, Psychomotor Performance, Recruitment, Neurophysiological, Size Perception, Visual Cortex, Prostheses and Implants, Positron-Emission Tomography

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