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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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></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">20402244</PMID><DateCreated><Year>2010</Year><Month>04</Month><Day>20</Day></DateCreated><DateCompleted><Year>2010</Year><Month>06</Month><Day>23</Day></DateCompleted><Article PubModel="Print"><Journal><ISSN IssnType="Print">0301-0066</ISSN><JournalIssue CitedMedium="Print"><Volume>39</Volume><Issue>2</Issue><PubDate><Year>2010</Year></PubDate></JournalIssue><Title>Perception</Title><ISOAbbreviation>Perception</ISOAbbreviation></Journal><ArticleTitle>Haptic recognition of two-dimensional raised-line patterns by early-blind, late-blind, and blindfolded sighted adults.</ArticleTitle><Pagination><MedlinePgn>224-35</MedlinePgn></Pagination><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. 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