Haptic recognition of two-dimensional raised-line patterns by early-blind, late-blind, and blindfolded sighted adults.
Identifieur interne : 001108 ( PubMed/Corpus ); précédent : 001107; suivant : 001109Haptic recognition of two-dimensional raised-line patterns by early-blind, late-blind, and blindfolded sighted adults.
Auteurs : Delphine Picard ; Samuel Lebaz ; Christophe Jouffrais ; Catherine MonnierSource :
- Perception [ 0301-0066 ] ; 2010.
English descriptors
- KwdEn :
- MESH :
- physiology : Touch.
- physiopathology : Blindness.
- Adolescent, Adult, Female, Form Perception, Humans, Male, Middle Aged, Pattern Recognition, Visual, Young Adult.
Abstract
We investigated the role of visual experience and visual imagery in the processing of two-dimensional (2-D) tactile patterns. The performance of early-blind (EB), late-blind (LB), and blindfolded sighted (S) adults in the recognition of 2-D raised-line patterns was compared. We also examined whether recognition of 2-D tactile patterns depends on the type of memory strategy (eg spatial, visuo-spatial, verbal, and kinesthetic) used by EB, LB, and S participants to perform the task. Significant between-group differences in the recognition performance have not been found despite significant between-group differences in self-reported memory strategies. Recognition performance does not vary significantly with the strategy, but correlates positively with visuo-spatial imagery abilities in the S participants. These findings may be taken to suggest that the difficulties some blind people experience with tactile pictures are not due to difficulties in processing 2-D tactile patterns.
PubMed: 20402244
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pubmed:20402244Le document en format XML
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<author><name sortKey="Picard, Delphine" sort="Picard, Delphine" uniqKey="Picard D" first="Delphine" last="Picard">Delphine Picard</name>
<affiliation><nlm:affiliation>Université Toulouse II--Le Mirail, Pavilion de la Recherche, Octogone-ECCD, 5 all6es Antonio Machado, 31058 Toulouse, France. delphine.picard@univ-tlse2.fr</nlm:affiliation>
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<author><name sortKey="Lebaz, Samuel" sort="Lebaz, Samuel" uniqKey="Lebaz S" first="Samuel" last="Lebaz">Samuel Lebaz</name>
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<author><name sortKey="Jouffrais, Christophe" sort="Jouffrais, Christophe" uniqKey="Jouffrais C" first="Christophe" last="Jouffrais">Christophe Jouffrais</name>
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<author><name sortKey="Monnier, Catherine" sort="Monnier, Catherine" uniqKey="Monnier C" first="Catherine" last="Monnier">Catherine Monnier</name>
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<author><name sortKey="Lebaz, Samuel" sort="Lebaz, Samuel" uniqKey="Lebaz S" first="Samuel" last="Lebaz">Samuel Lebaz</name>
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<author><name sortKey="Jouffrais, Christophe" sort="Jouffrais, Christophe" uniqKey="Jouffrais C" first="Christophe" last="Jouffrais">Christophe Jouffrais</name>
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<term>Humans</term>
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<term>Pattern Recognition, Visual</term>
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<front><div type="abstract" xml:lang="en">We investigated the role of visual experience and visual imagery in the processing of two-dimensional (2-D) tactile patterns. The performance of early-blind (EB), late-blind (LB), and blindfolded sighted (S) adults in the recognition of 2-D raised-line patterns was compared. We also examined whether recognition of 2-D tactile patterns depends on the type of memory strategy (eg spatial, visuo-spatial, verbal, and kinesthetic) used by EB, LB, and S participants to perform the task. Significant between-group differences in the recognition performance have not been found despite significant between-group differences in self-reported memory strategies. Recognition performance does not vary significantly with the strategy, but correlates positively with visuo-spatial imagery abilities in the S participants. These findings may be taken to suggest that the difficulties some blind people experience with tactile pictures are not due to difficulties in processing 2-D tactile patterns.</div>
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<Abstract><AbstractText>We investigated the role of visual experience and visual imagery in the processing of two-dimensional (2-D) tactile patterns. The performance of early-blind (EB), late-blind (LB), and blindfolded sighted (S) adults in the recognition of 2-D raised-line patterns was compared. We also examined whether recognition of 2-D tactile patterns depends on the type of memory strategy (eg spatial, visuo-spatial, verbal, and kinesthetic) used by EB, LB, and S participants to perform the task. Significant between-group differences in the recognition performance have not been found despite significant between-group differences in self-reported memory strategies. Recognition performance does not vary significantly with the strategy, but correlates positively with visuo-spatial imagery abilities in the S participants. These findings may be taken to suggest that the difficulties some blind people experience with tactile pictures are not due to difficulties in processing 2-D tactile patterns.</AbstractText>
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