Predictors of developmental dyslexia in European orthographies with varying complexity.
Karin Landerl
,
Franck Ramus
(1)
,
Kristina Moll
,
Heikki Lyytinen
,
Paavo H T Leppänen
,
Kaisa Lohvansuu
,
Michael O'Donovan
(2, 3)
,
Julie Williams
(4)
,
Jürgen Bartling
,
Jennifer Bruder
,
Sarah Kunze
,
Nina Neuhoff
,
Dénes Tóth
,
Ferenc Honbolygó
,
Valéria Csépe
,
Caroline Bogliotti
(5)
,
Stéphanie Iannuzzi
,
Yves Chaix
(6)
,
Jean-François Démonet
(7)
,
Emilie Longeras
,
Sylviane Valdois
(8)
,
Camille Chabernaud
,
Florence Delteil-Pinton
,
Catherine Billard
(9)
,
Florence George
(10)
,
Johannes C Ziegler
(10)
,
Isabelle Comte-Gervais
,
Isabelle Soares-Boucaud
,
Christophe-Loïc Gérard
,
Leo Blomert
,
Anniek Vaessen
,
Patty Gerretsen
,
Michel Ekkebus
,
Daniel Brandeis
,
Urs Maurer
,
Enrico Schulz
,
Sanne van Der Mark
,
Bertram Müller-Myhsok
(11)
,
Gerd Schulte-Körne
(12)
1
LSCP -
Laboratoire de sciences cognitives et psycholinguistique
2 Institute of Psychological Medicine and Clinical Neurosciences
3 MRC Centre for Neuropsychiatric Genetics and Genomics
4 Bioinformatics
5 MoDyCo - Modèles, Dynamiques, Corpus
6 ICHN - Imagerie cérébrale et handicaps neurologiques
7 Centre Leenaards de la Mémoire
8 LPNC - Laboratoire de Psychologie et NeuroCognition
9 C3ED - Centre d'économie et d'éthique pour l'environnement et le développement
10 LPC - Laboratoire de psychologie cognitive
11 Translational Centre for Regenerative Medicine (TRM); Department of Cell Therapy
12 Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy
2 Institute of Psychological Medicine and Clinical Neurosciences
3 MRC Centre for Neuropsychiatric Genetics and Genomics
4 Bioinformatics
5 MoDyCo - Modèles, Dynamiques, Corpus
6 ICHN - Imagerie cérébrale et handicaps neurologiques
7 Centre Leenaards de la Mémoire
8 LPNC - Laboratoire de Psychologie et NeuroCognition
9 C3ED - Centre d'économie et d'éthique pour l'environnement et le développement
10 LPC - Laboratoire de psychologie cognitive
11 Translational Centre for Regenerative Medicine (TRM); Department of Cell Therapy
12 Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy
Karin Landerl
- Function : Author
Franck Ramus
- Function : Author
- PersonId : 117
- IdHAL : franck-ramus
- ORCID : 0000-0002-1122-5913
- IdRef : 071517383
Kristina Moll
- Function : Author
Heikki Lyytinen
- Function : Author
Paavo H T Leppänen
- Function : Author
Kaisa Lohvansuu
- Function : Author
Jürgen Bartling
- Function : Author
Jennifer Bruder
- Function : Author
Sarah Kunze
- Function : Author
Nina Neuhoff
- Function : Author
Dénes Tóth
- Function : Author
Ferenc Honbolygó
- Function : Author
Valéria Csépe
- Function : Author
Caroline Bogliotti
- Function : Author
- PersonId : 1027944
- IdHAL : carolinebogliotti
- ORCID : 0000-0003-1413-1135
Stéphanie Iannuzzi
- Function : Author
Emilie Longeras
- Function : Author
Sylviane Valdois
- Function : Author
- PersonId : 753469
- IdHAL : sylviane-valdois
- ORCID : 0000-0002-4562-7267
- IdRef : 05953091X
Camille Chabernaud
- Function : Author
Florence Delteil-Pinton
- Function : Author
Johannes C Ziegler
- Function : Author
- PersonId : 12344
- IdHAL : johannes-ziegler
- ORCID : 0000-0002-2061-5729
- IdRef : 131363557
Isabelle Comte-Gervais
- Function : Author
Isabelle Soares-Boucaud
- Function : Author
Christophe-Loïc Gérard
- Function : Author
Leo Blomert
- Function : Author
Anniek Vaessen
- Function : Author
Patty Gerretsen
- Function : Author
Michel Ekkebus
- Function : Author
Daniel Brandeis
- Function : Author
Urs Maurer
- Function : Author
Enrico Schulz
- Function : Author
Sanne van Der Mark
- Function : Author
Bertram Müller-Myhsok
- Function : Author
- PersonId : 763103
- ORCID : 0000-0002-0719-101X
- IdRef : 152975233
Abstract
BACKGROUND: The relationship between phoneme awareness, rapid automatized naming (RAN), verbal short-term/working memory (ST/WM) and diagnostic category is investigated in control and dyslexic children, and the extent to which this depends on orthographic complexity. METHODS: General cognitive, phonological and literacy skills were tested in 1,138 control and 1,114 dyslexic children speaking six different languages spanning a large range of orthographic complexity (Finnish, Hungarian, German, Dutch, French, English). RESULTS: Phoneme deletion and RAN were strong concurrent predictors of developmental dyslexia, while verbal ST/WM and general verbal abilities played a comparatively minor role. In logistic regression models, more participants were classified correctly when orthography was more complex. The impact of phoneme deletion and RAN-digits was stronger in complex than in less complex orthographies. CONCLUSIONS: Findings are largely consistent with the literature on predictors of dyslexia and literacy skills, while uniquely demonstrating how orthographic complexity exacerbates some symptoms of dyslexia.