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Phonological syllables allow children with developmental dyslexia to access words

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A Correction to this article was published on 05 May 2024

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Abstract

Learning to read is a middle-distance race for children worldwide. Most of them succeed in this acquisition with “normal” difficulties that ensue from the progressive (re)structuring of the phonological and orthographic systems. Evidence accumulated on reading difficulties in children with developmental dyslexia (DYS children, henceforth) shows a pervasive phonological deficit. However, the phonological deficit may not be due to degraded phonological representations but rather due to impaired access to them. This study focused on how and to what extent phonological syllables, which are essential reading units in French, were accessible to DYS children to segment and access words. We tested the assumption that DYS children did not strictly have pervasive degraded phonological representations but also have impaired access to phonological and orthographic representations. We administered a visually adapted word-spotting paradigm, engaging both sublexical processing and lexical access, with French native-speaking DYS children (N = 25; Mage in months = 121.6, SD = 3.0) compared with chronological age-matched peers (N = 25; Mage in months = 121.8, SD = 2.7; CA peers henceforth) and reading level-matched peers (N = 25; Mage in months = 94.0, SD = 4.6; RL peers henceforth). Although DYS children were slower and less accurate than CA and RL peers, we found that they used phonological syllables to access and segment words. However, they exhibit neither the classical inhibitory syllable frequency effect nor the lexical frequency effect, which is generally observed in typically developing children. Surprisingly, DYS children did not show strictly degraded phonological representations because they demonstrated phonological syllable-based segmentation abilities, particularly with high-frequency syllables. Their difficulties are rather interpreted in terms of impaired access to orthographic and phonological representations, which could be a direct effect of difficulties in generalizing and consolidating low-frequency syllables. We discuss these results regarding reading acquisition and the specificities of the French linguistic system.

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Data availability

Data will be freely available on https://osf.io/2m5xf/.

Change history

Notes

  1. French is considered to be opaque since it is irregular in the phoneme-to-grapheme direction (e.g., one phoneme [e.g., /o/] may be represented either in a fine- [e.g., “o”] or in coarse-grained graphemes [e.g., “eau,” “aux”]; Fayol & Jaffré, 2008).

  2. Overall, we tested 103 typically developing children. Based on their scores at TIMÉ 3 and their personal information, we excluded 53 of them (51.5%) from the initial set because 28 (52.8%) were either the same chronological age or the same reading level as the previously selected CA or RL peers to match the DYS children, 19 (35.9%) were “poor readers” (i.e., typically developing children with Mdelay in months between –9 months and –17 months), 4 (7.4%) did not follow the instructions, and 2 dropped out (3.8%).

  3. To discard uncovered factors that could affect our results, we inspected the Orthographic Trigram Frequency since this is supposed to influence the activation strength between the letter level and the syllable level following predictions from the IAS model (Mathey et al., 2006). We did not carry out an additional analysis (e.g., by substituting the Lexical Frequency) because values for lexical frequency and Orthographic Trigram Frequency strongly and positively correlate (r = .86).

References

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Acknowledgements

We would like to thank the speech and language therapists, neuropsychologists, teachers, parents, and children who voluntarily participated in this study. We thank Master’s students who were involved in the data collection.

Funding

This research was partly supported by a Research Grant EP2ED2 from Maison des Sciences de l’Homme de Clermont-Ferrand – USR 3550 CNRS – 63000 Clermont-Ferrand (2018–2020).

Author information

Authors and Affiliations

Authors

Contributions

Norbert Maïonchi-Pino and Damien Chabanal conceived, designed, and supervised this study. Norbert Maïonchi-Pino and Master’s students collected the data. Norbert Maïonchi-Pino and Damien Chabanal analyzed and interpreted the data and wrote the paper. Norbert Maïonchi-Pino and Élise Runge edited the text, figures, tables, and references. Norbert Maïonchi-Pino, Élise Runge, and Damien Chabanal revised the paper. Norbert Maïonchi-Pino, Élise Runge, and Damien Chabanal approved the submission of the manuscript for publication.

Corresponding author

Correspondence to Norbert Maïonchi-Pino.

Ethics declarations

Ethics approval

The Regional School Management Office and the Local Ethics Committee approved this research (IRB00011540–2018–17).

Consent to participate

All children participated after their parents had completed and signed an informed consent form.

Conflict of interest

The authors declare no competing interests.

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The original online version of this article was revised: “The Regional School Management Office and the Local Ethics Committee approved this research (IRBXXXXXXXX–XXXX–XX).” should have read “The Regional School Management Office and the Local Ethics Committee approved this research”.

In Data availability section, the text appear in the bracket should be removed, previously read as “Data will be freely available on https://osf.io/2m5xf/ (before publication, you can contact me if the access is impossible or corrupted).” should have read “Data will be freely available on https://osf.io2m5xf/”.

Appendix

Appendix

Compatibility

Incompatibility

High-frequency words

Low-frequency words

High-frequency words

Low-frequency words

High-frequency syllables

Low-frequency syllables

High-frequency syllables

Low-frequency syllables

High-frequency syllables

Low-frequency syllables

High-frequency syllables

Low-frequency syllables

murna

gelvo

barfi

zipmo

murol

gelob

bariv

zipob

tirma

purfa

sirgo

kirpo

tiruv

purol

sirèv

kiroj

belgo

picta

forgu

tictu

beliv

picuj

forug

ticob

ferlu

bectu

docmè

tifga

ferob

becup

docap

tifub

balgu

bactè

calfi

nulpo

baléb

bacuf

calèg

nulig

filca

capto

vilma

cilca

filav

capuk

vilab

cilab

mervo

bolma

terpu

gagtu

meroj

bolém

terov

gaguj

carfi

vifga

corlu

pubjo

carib

viféj

coruj

puboj

verco

toctè

derlo

pifmè

veroj

tocug

derog

pifag

telvo

toptu

 

rabju

teluj

topév

 

rabuf

durni

secto

 

raptu

duril

secuf

 

rapik

sacti

lacti

 

valbi

sacub

lacub

 

valèd

surpi

  

rocmè

suril

  

rocav

volmu

  

bicta

volèb

  

bicav

selti

  

bipmo

selor

  

bipuv

solga

  

mecto

soléj

  

mecob

maldo

  

bobja

malèv

  

bobav

colpu

  

nefga

colèd

  

nefuk

parbo

  

ducmè

parug

  

ducoj

   

sucmè

   

sucog

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Maïonchi-Pino, N., Runge, É. & Chabanal, D. Phonological syllables allow children with developmental dyslexia to access words. Ann. of Dyslexia (2024). https://doi.org/10.1007/s11881-024-00302-1

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  • DOI: https://doi.org/10.1007/s11881-024-00302-1

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