Linked Life Data

8983990

Source:http://linkedlifedata.com/resource/pubmed/id/8983990

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1997-1-3
pubmed:abstractText
The present study was designed to compare the performance of nine dyslexic boys and nine age- and IQ-matched controls on tasks which presumably tap visual functions dependent on the subcortical magnocellular (M) pathway (flicker sensitivity) and the cortical dorsal stream (stereoacuity, structure-from-motion, visuomotor control). Increasing evidence suggests that dyslexics experience impairments in M-system functioning. In keeping with previous work supporting this conclusion, dyslexic subjects in the present study were found to have reduced sensitivity to flicker relative to controls. Given that the M system provides the predominant input to the dorsal stream, it was expected that reduced functioning of the M system in dyslexics would result in disruptions of functions related to this cortical visual pathway. Indeed, dyslexic subjects in the present study were found to be less efficient at recognizing structure-from-motion and less accurate at grasping objects precisely. They also showed a mild impairment in stereoacuity. These results, then, lend some support to the hypothesis that dyslexic individuals should show deficiencies on tasks dependent on dorsal stream processing of visual information.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0014-4819
pubmed:author
pubmed:issnType
Print
pubmed:volume
106
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
467-74
pubmed:dateRevised
2009-11-11
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Visual and visuomotor performance in dyslexic children.
pubmed:affiliation
Department of Psychology, Queen's University, Kingston, Ontario, Canada.
pubmed:publicationType
Journal Article