Visual encoding mechanisms and their relationship to text presentation preference

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dc.contributor.authorPammer, Kristen
dc.contributor.authorLavis, Ruth
dc.contributor.authorCornelissen, Piers
dc.date.accessioned2015-12-07T22:23:37Z
dc.date.issued2004
dc.date.updated2015-12-07T09:20:26Z
dc.description.abstractThis study was designed to investigate the importance of spatial encoding in reading, with particular emphasis on visuo-spatial encoding mechanisms. Thirty one school children participated in the first study in which they were measured on their ability to solve a centrally presented spatial encoding task, as well as their sensitivity to the frequency doubling illusion across the retina. We found that both spatial frequency doubling sensitivity and performance in the spatial encoding task were correlated with reading, however these tasks were unrelated to each other. Furthermore, frequency doubling sensitivity was correlated with contextual reading, but not single-word reading, while the central spatial encoding task was correlated with both reading tasks. These findings may have functional implications for text presentation preference. Accordingly, in Experiment 2 we demonstrated that children with poor FDT sensitivity read more accurately when words were presented singularly rather than in a whole-text format. In conclusion, we suggest that contextual reading may depend upon two separate and functionally distinct visual encoding mechanisms - one central, important for the spatial discrimination of letters within words, and the other, a spotlighting mechanism important for spatial localization within a body of text. While both mechanisms may constrain reading efficiency, neither mechanism enforces an absolute limit on reading ability.
dc.identifier.issn1076-9242
dc.identifier.urihttp://hdl.handle.net/1885/20787
dc.publisherJohn Wiley & Sons Inc
dc.sourceDyslexia
dc.subjectKeywords: article; child; cognition; decision making; dyslexia; human; neuropsychological test; physiology; vision; accuracy; clinical article; controlled study; correlation function; experimentation; frequency analysis; reading; retina; school child; sensitivity a Dyslexia; Frequency doubling; Letter position; Reading
dc.titleVisual encoding mechanisms and their relationship to text presentation preference
dc.typeJournal article
local.bibliographicCitation.lastpage94
local.bibliographicCitation.startpage77
local.contributor.affiliationPammer, Kristen, College of Medicine, Biology and Environment, ANU
local.contributor.affiliationLavis, Ruth, Newcastle University
local.contributor.affiliationCornelissen, Piers, Newcastle University
local.contributor.authoremailu9602956@anu.edu.au
local.contributor.authoruidPammer, Kristen, u9602956
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.identifier.absfor170101 - Biological Psychology (Neuropsychology, Psychopharmacology, Physiological Psychology)
local.identifier.ariespublicationu4024396xPUB14
local.identifier.citationvolume10
local.identifier.doi10.1002/dys.264
local.identifier.scopusID2-s2.0-3042701582
local.identifier.uidSubmittedByu4024396
local.type.statusPublished Version

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