Reading text increases binocular disparity in dyslexic children
Reading text increases binocular disparity in dyslexic children
Children with developmental dyslexia show reading impairment compared to their peers, despite being matched on IQ, socio-economic background, and educational opportunities. The neurological and cognitive basis of dyslexia remains a highly debated topic. Proponents of the magnocellular theory, that postulate abnormalities in the M-stream of the visual pathway cause developmental dyslexia, claim that children with dyslexia have deficient binocular coordination, and this is the underlying cause of developmental dyslexia. We measured binocular coordination during reading and a non-linguistic scanning task in three participant groups – adults, typically developing children, and children with dyslexia. A significant increase in fixation disparity was observed for dyslexic children solely when reading. Our study casts serious doubts on the claims of the magnocellular theory. The exclusivity of increased fixation disparity in dyslexics during reading might be a result of the allocation of inadequate attentional and/or cognitive resources to the reading process, or suboptimal linguistic processing per se.
1-7
Kirkby, Julie
9965866c-a43c-457d-b3f7-a6ab7aa4ba41
Blythe, Hazel I.
51835633-e40b-4e8b-ae49-ad6b2f927f4c
Drieghe, Denis
dfe41922-1cea-47f4-904b-26d5c9fe85ce
Liversedge, Simon P.
3ebda3f3-d930-4f89-85d5-5654d8fe7dee
October 2011
Kirkby, Julie
9965866c-a43c-457d-b3f7-a6ab7aa4ba41
Blythe, Hazel I.
51835633-e40b-4e8b-ae49-ad6b2f927f4c
Drieghe, Denis
dfe41922-1cea-47f4-904b-26d5c9fe85ce
Liversedge, Simon P.
3ebda3f3-d930-4f89-85d5-5654d8fe7dee
Kirkby, Julie, Blythe, Hazel I., Drieghe, Denis and Liversedge, Simon P.
(2011)
Reading text increases binocular disparity in dyslexic children.
PLoS ONE, 6 (11), .
(doi:10.1371/journal.pone.0027105.t004).
Abstract
Children with developmental dyslexia show reading impairment compared to their peers, despite being matched on IQ, socio-economic background, and educational opportunities. The neurological and cognitive basis of dyslexia remains a highly debated topic. Proponents of the magnocellular theory, that postulate abnormalities in the M-stream of the visual pathway cause developmental dyslexia, claim that children with dyslexia have deficient binocular coordination, and this is the underlying cause of developmental dyslexia. We measured binocular coordination during reading and a non-linguistic scanning task in three participant groups – adults, typically developing children, and children with dyslexia. A significant increase in fixation disparity was observed for dyslexic children solely when reading. Our study casts serious doubts on the claims of the magnocellular theory. The exclusivity of increased fixation disparity in dyslexics during reading might be a result of the allocation of inadequate attentional and/or cognitive resources to the reading process, or suboptimal linguistic processing per se.
Text
Kirkby,_Blythe,_Drieghe_&_Liversedge_(2011).pdf
- Version of Record
More information
Published date: October 2011
Organisations:
Psychology
Identifiers
Local EPrints ID: 199851
URI: http://eprints.soton.ac.uk/id/eprint/199851
ISSN: 1932-6203
PURE UUID: fe4fdb65-6002-4425-b0c9-87e826798567
Catalogue record
Date deposited: 21 Oct 2011 08:55
Last modified: 15 Mar 2024 03:34
Export record
Altmetrics
Contributors
Author:
Julie Kirkby
Author:
Hazel I. Blythe
Author:
Simon P. Liversedge
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
