Dyslexic adults can learn from repeated stimulus presentation but have difficulties in excluding external noise.

We examined whether the characteristic impairments of dyslexia are due to a deficit in excluding external noise or a deficit in taking advantage of repeated stimulus presentation. We compared non-impaired adults and adults with poor reading performance on a visual letter detection task that varied t...

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Main Authors: Rachel L Beattie, Zhong-Lin Lu, Franklin R Manis
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2011-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3223213?pdf=render
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spelling doaj-088dc6ac7dc84b78a9886f89bd767a342020-11-24T20:50:08ZengPublic Library of Science (PLoS)PLoS ONE1932-62032011-01-01611e2789310.1371/journal.pone.0027893Dyslexic adults can learn from repeated stimulus presentation but have difficulties in excluding external noise.Rachel L BeattieZhong-Lin LuFranklin R ManisWe examined whether the characteristic impairments of dyslexia are due to a deficit in excluding external noise or a deficit in taking advantage of repeated stimulus presentation. We compared non-impaired adults and adults with poor reading performance on a visual letter detection task that varied two aspects: the presence or absence of background visual noise, and a small or large stimulus set. There was no interaction between group and stimulus set size, indicating that the poor readers took advantage of repeated stimulus presentation as well as the non-impaired readers. The poor readers had higher thresholds than non-impaired readers in the presence of high external noise, but not in the absence of external noise. The results support the hypothesis that an external noise exclusion deficit, not a perceptual anchoring deficit, impairs reading for adults.http://europepmc.org/articles/PMC3223213?pdf=render
collection DOAJ
language English
format Article
sources DOAJ
author Rachel L Beattie
Zhong-Lin Lu
Franklin R Manis
spellingShingle Rachel L Beattie
Zhong-Lin Lu
Franklin R Manis
Dyslexic adults can learn from repeated stimulus presentation but have difficulties in excluding external noise.
PLoS ONE
author_facet Rachel L Beattie
Zhong-Lin Lu
Franklin R Manis
author_sort Rachel L Beattie
title Dyslexic adults can learn from repeated stimulus presentation but have difficulties in excluding external noise.
title_short Dyslexic adults can learn from repeated stimulus presentation but have difficulties in excluding external noise.
title_full Dyslexic adults can learn from repeated stimulus presentation but have difficulties in excluding external noise.
title_fullStr Dyslexic adults can learn from repeated stimulus presentation but have difficulties in excluding external noise.
title_full_unstemmed Dyslexic adults can learn from repeated stimulus presentation but have difficulties in excluding external noise.
title_sort dyslexic adults can learn from repeated stimulus presentation but have difficulties in excluding external noise.
publisher Public Library of Science (PLoS)
series PLoS ONE
issn 1932-6203
publishDate 2011-01-01
description We examined whether the characteristic impairments of dyslexia are due to a deficit in excluding external noise or a deficit in taking advantage of repeated stimulus presentation. We compared non-impaired adults and adults with poor reading performance on a visual letter detection task that varied two aspects: the presence or absence of background visual noise, and a small or large stimulus set. There was no interaction between group and stimulus set size, indicating that the poor readers took advantage of repeated stimulus presentation as well as the non-impaired readers. The poor readers had higher thresholds than non-impaired readers in the presence of high external noise, but not in the absence of external noise. The results support the hypothesis that an external noise exclusion deficit, not a perceptual anchoring deficit, impairs reading for adults.
url http://europepmc.org/articles/PMC3223213?pdf=render
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AT zhonglinlu dyslexicadultscanlearnfromrepeatedstimuluspresentationbuthavedifficultiesinexcludingexternalnoise
AT franklinrmanis dyslexicadultscanlearnfromrepeatedstimuluspresentationbuthavedifficultiesinexcludingexternalnoise
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