Lexical and sublexical orthographic processing: An ERP study with skilled and dyslexic adult readers.
(2015) In Brain and Language 141. p.16-27- Abstract
- 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... (More)
- 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. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4905859
- author
- Araújo, Susana ; Faísca, Luís ; Bramao, Ines LU ; Reis, Alexandra and Petersson, Karl Magnus
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Brain and Language
- volume
- 141
- pages
- 16 - 27
- publisher
- Elsevier
- external identifiers
-
- pmid:25528285
- wos:000349430300003
- scopus:84918787802
- pmid:25528285
- ISSN
- 1090-2155
- DOI
- 10.1016/j.bandl.2014.11.007
- language
- English
- LU publication?
- yes
- id
- eb9576b8-009c-4550-9b1f-d8ea2a67f154 (old id 4905859)
- date added to LUP
- 2016-04-01 10:48:56
- date last changed
- 2022-03-27 19:47:21
@article{eb9576b8-009c-4550-9b1f-d8ea2a67f154,
abstract = {{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.}},
author = {{Araújo, Susana and Faísca, Luís and Bramao, Ines and Reis, Alexandra and Petersson, Karl Magnus}},
issn = {{1090-2155}},
language = {{eng}},
pages = {{16--27}},
publisher = {{Elsevier}},
series = {{Brain and Language}},
title = {{Lexical and sublexical orthographic processing: An ERP study with skilled and dyslexic adult readers.}},
url = {{http://dx.doi.org/10.1016/j.bandl.2014.11.007}},
doi = {{10.1016/j.bandl.2014.11.007}},
volume = {{141}},
year = {{2015}},
}