Article (Scientific journals)
Developmental changes in neural letter-selectivity: A 1-year follow-up of beginning readers.
van de Walle de Ghelcke, Alice; Rossion, Bruno; Schiltz, Christine et al.
2020In Developmental Science, p. 12999
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Keywords :
1-year follow-up; FPVS-EEG; beginning readers; developmental changes; letter selectivity; reading neural circuits
Abstract :
[en] The developmental course of neural tuning to visual letter strings is unclear. Here we tested 39 children longitudinally, at the beginning of grade 1 (6.45 ± 0.33 years old) and 1 year after, with fast periodic visual stimulation in electroencephalography to assess the evolution of selective neural responses to letter strings and their relationship with emerging reading abilities. At both grades, frequency-tagged letter strings were discriminated from pseudofont strings (i.e. letter-selectivity) over the left occipito-temporal cortex, with effects observed at the individual level in 62% of children. However, visual words were not discriminated from pseudowords (lexical access) at either grade. Following 1 year of schooling, letter-selective responses showed a specific increase in amplitude, a more complex pattern of harmonics, and were located more anteriorly over the left occipito-temporal cortex. Remarkably, at both grades, neural responses were highly significant at the individual level and correlated with individual reading scores. The amplitude increase in letter-selective responses between grades was not found for discrimination responses of familiar keyboard symbols from pseudosymbols, and was not related to a general increase in visual stimulation responses. These findings demonstrate a rapid onset of left hemispheric letter selectivity, with 1 year of reading instruction resulting in increased emerging reading abilities and a clear quantitative and qualitative evolution within left hemispheric neural circuits for reading.
Disciplines :
Neurosciences & behavior
Author, co-author :
van de Walle de Ghelcke, Alice
Rossion, Bruno
Schiltz, Christine ;  University of Luxembourg > Faculty of Humanities, Education and Social Sciences (FHSE) > Department of Behavioural and Cognitive Sciences (DBCS)
Lochy, Aliette  ;  University of Luxembourg > Faculty of Humanities, Education and Social Sciences (FHSE) > Department of Behavioural and Cognitive Sciences (DBCS)
External co-authors :
yes
Language :
English
Title :
Developmental changes in neural letter-selectivity: A 1-year follow-up of beginning readers.
Publication date :
2020
Journal title :
Developmental Science
ISSN :
1467-7687
Publisher :
Wiley, Oxford, United Kingdom
Pages :
e12999
Peer reviewed :
Peer Reviewed verified by ORBi
FnR Project :
FNR11015111 - Understanding The Relationship Between Electrophysiological Indexes Of Face Perception With Fast Perodic Visual Stimulation And Explicit Behavioral Measures, 2015 (01/10/2016-30/09/2020) - Christine Schiltz
Funders :
FNR - Fonds National de la Recherche [LU]
Commentary :
© 2020 The Authors. Developmental Science published by John Wiley & Sons Ltd.
Available on ORBilu :
since 17 December 2020

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