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Lexical and sublexi...
Lexical and sublexical orthographic processing: An ERP study with skilled and dyslexic adult readers.
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Araújo, Susana (author)
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Faísca, Luís (author)
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- Bramao, Ines (author)
- Lund University,Lunds universitet,Institutionen för psykologi,Samhällsvetenskapliga institutioner och centrumbildningar,Samhällsvetenskapliga fakulteten,Department of Psychology,Departments of Administrative, Economic and Social Sciences,Faculty of Social Sciences
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Reis, Alexandra (author)
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Petersson, Karl Magnus (author)
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(creator_code:org_t)
- Elsevier BV, 2015
- 2015
- English.
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In: Brain and Language. - : Elsevier BV. - 1090-2155 .- 0093-934X. ; 141, s. 16-27
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http://dx.doi.org/10...
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https://pure.mpg.de/...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Subject headings
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- This ERP study investigated the cognitive nature of the P1-N1 components during orthographic processing. We used an implicit reading task with various types of stimuli involving different amounts of sublexical or lexical orthographic processing (words, pseudohomophones, pseudowords, nonwords, and symbols), and tested average and dyslexic readers. An orthographic regularity effect (pseudowords-nonwords contrast) was observed in the average but not in the dyslexic group. This suggests an early sensitivity to the dependencies among letters in word-forms that reflect orthographic structure, while the dyslexic brain apparently fails to be appropriately sensitive to these complex features. Moreover, in the adults the N1-response may already reflect lexical access: (i) the N1 was sensitive to the familiar vs. less familiar orthographic sequence contrast; (ii) and early effects of the phonological form (words-pseudohomophones contrast) were also found. Finally, the later N320 component was attenuated in the dyslexics, suggesting suboptimal processing in later stages of phonological analysis.
Subject headings
- SAMHÄLLSVETENSKAP -- Psykologi (hsv//swe)
- SOCIAL SCIENCES -- Psychology (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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