Cited by 45Tactile and Sensory InteractionsSpatial Cognition and NavigationMemory and Neural Mechanisms

The DOI matches its Crossref record; 59 of the 59 references it cites were found in a registry or an index.

Activation of the hippocampal complex during tactile maze solving in congenitally blind subjects

Abstract

Despite their lack of vision, congenitally blind subjects are able to build and manipulate cognitive maps for spatial navigation. It is assumed that they thereby rely more heavily on echolocation, proprioceptive signals and environmental cues such as ambient temperature and audition to compensate for their lack of vision. Little is known, however, about the neural mechanisms underlying spatial navigation in blind individuals in settings where these cues are absent. We therefore measured behavioural performance and blood oxygenation-level dependant (BOLD) responses using functional magnetic resonance imaging (fMRI) in congenitally blind and blindfolded sighted participants while they navigated through a tactile multiple T-maze. Both groups learned the maze task at a similar pace. In blind participants, tactile maze navigation was associated with increased BOLD responses in the right hippocampus and parahippocampus, occipital cortex and fusiform gyrus. Blindfolded sighted controls did not show increased BOLD responses in these areas; instead they activated the caudate nucleus and thalamus. Both groups activated the precuneus during tactile maze navigation. We conclude that cross-modal plastic processes allow for the recruitment of the hippocampal complex and visual cortex in congenital blindness.

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Crossref · 10.1016/j.neuropsychologia.2012.03.022

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Metadata

Authors
Gagnon, L., Schneider, F. C., Siebner, H. R., Paulson, O. B., Kupers, R., & Ptito, M.
Affiliations
  • University of Copenhagen (DK)
  • Centre National de la Recherche Scientifique (FR)
  • Hvidovre Hospital (DK)
Corresponding author
Kupers, Ron
Venue
Neuropsychologia
Publisher
Elsevier BV
Published
2012-06
Volume
50
Issue
7
Pages
1663-1671
ISSN
0028-3932 (ISSN-L)
OpenAlex
W2160197710
Cited by
45
References
59
Citations by year
2026: 2 · 2025: 3 · 2024: 1 · 2023: 5 · 2022: 4 · 2021: 5 · 2020: 4 · 2019: 1 · 2018: 3 · 2017: 4 · 2016: 2 · 2015: 3 · 2014: 2 · 2013: 4 · 2012: 1
FWCI
1.63
Type
journal article
Language
en
Open access
closed
Locations
  • Neuropsychologia (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
Funders
  • Simons Foundation
  • Lundbeckfonden (R59-2010-5399)
  • Simon Spies Fonden
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Spatial Cognition and Navigation
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
congenital blindness, spatial navigation, hippocampus, parahippocampal gyrus, cross-modal plasticity, visual cortex, precuneus, caudate nucleus, thalamus, fusiform gyrus, occipital cortex, BOLD signal
MeSH terms
Adult, Analysis of Variance, Blindness, Brain Mapping, Female, Hippocampus, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Middle Aged, Oxygen, Problem Solving, Time Factors, Touch, Maze Learning, Young Adult

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