Early predictors of dyslexia in Chinese children: familial history of dyslexia, language delay, and cognitive profiles / Catherine MCBRIDE-CHANG in Journal of Child Psychology and Psychiatry, 52-2 (February 2011)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 52-2 (February 2011) . - p.204-211 Titre : Early predictors of dyslexia in Chinese children: familial history of dyslexia, language delay, and cognitive profiles Type de document : Texte imprimé et/ou numérique Auteurs : Catherine MCBRIDE-CHANG, Auteur ; Fanny LAM, Auteur ; Catherine LAM, Auteur ; Becky CHAN, Auteur ; Cathy Y.-C. FONG, Auteur ; Terry T.Y. WONG, Auteur ; Simpson W.L. WONG, Auteur Année de publication : 2011 Article en page(s) : p.204-211 Langues : Anglais (eng) Mots-clés : Language impairment  genetic risk  morphological awareness  rapid automatized naming Index. décimale : PER Périodiques Résumé : Background:  This work tested the rates at which Chinese children with either language delay or familial history of dyslexia at age 5 manifested dyslexia at age 7, identified which cognitive skills at age 5 best distinguished children with and without dyslexia at age 7, and examined how these early abilities predicted subsequent literacy skills. Method:  Forty-seven at-risk children (21 who were initially language delayed and 26 with familial risk) and 47 control children matched on age, IQ, and mothers’ education were tested on syllable awareness, tone detection, rapid automatized naming, visual skill, morphological awareness, and word reading at age 5 and subsequently tested for dyslexia on a standard Hong Kong measure at age 7. Results:  Of those with an early language delay, 62% subsequently manifested dyslexia; for those with familial risk, the rate of dyslexia was 50%. Those with dyslexia were best distinguished from those without dyslexia by the age-5 measures of morphological awareness, rapid automatized naming, and word reading itself; other measures did not distinguish the groups. In a combined regression analysis across all participants, morphological awareness uniquely explained word reading accuracy and rapid automatized naming uniquely explained timed word reading at age 7, with all other measures statistically controlled. Separate stepwise regression analyses by group indicated that visual skill uniquely explained subsequent literacy skills in the at-risk group only, whereas tone and syllable awareness were unique predictors of literacy skills in the control group only. Conclusions:  Both early language delay and familial risk strongly overlap with subsequent dyslexia in Chinese children. Overall, rapid automatized naming and morphological awareness are relatively strong correlates of developmental dyslexia in Chinese; visual skill and phonological awareness may also be uniquely associated with subsequent literacy development in at-risk and typically developing children, respectively. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2010.02299.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=116 [article] Early predictors of dyslexia in Chinese children: familial history of dyslexia, language delay, and cognitive profiles [Texte imprimé et/ou numérique] / Catherine MCBRIDE-CHANG, Auteur ; Fanny LAM, Auteur ; Catherine LAM, Auteur ; Becky CHAN, Auteur ; Cathy Y.-C. FONG, Auteur ; Terry T.Y. WONG, Auteur ; Simpson W.L. WONG, Auteur . - 2011 . - p.204-211. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 52-2 (February 2011) . - p.204-211 Mots-clés : Language impairment  genetic risk  morphological awareness  rapid automatized naming Index. décimale : PER Périodiques Résumé : Background:  This work tested the rates at which Chinese children with either language delay or familial history of dyslexia at age 5 manifested dyslexia at age 7, identified which cognitive skills at age 5 best distinguished children with and without dyslexia at age 7, and examined how these early abilities predicted subsequent literacy skills. Method:  Forty-seven at-risk children (21 who were initially language delayed and 26 with familial risk) and 47 control children matched on age, IQ, and mothers’ education were tested on syllable awareness, tone detection, rapid automatized naming, visual skill, morphological awareness, and word reading at age 5 and subsequently tested for dyslexia on a standard Hong Kong measure at age 7. Results:  Of those with an early language delay, 62% subsequently manifested dyslexia; for those with familial risk, the rate of dyslexia was 50%. Those with dyslexia were best distinguished from those without dyslexia by the age-5 measures of morphological awareness, rapid automatized naming, and word reading itself; other measures did not distinguish the groups. In a combined regression analysis across all participants, morphological awareness uniquely explained word reading accuracy and rapid automatized naming uniquely explained timed word reading at age 7, with all other measures statistically controlled. Separate stepwise regression analyses by group indicated that visual skill uniquely explained subsequent literacy skills in the at-risk group only, whereas tone and syllable awareness were unique predictors of literacy skills in the control group only. Conclusions:  Both early language delay and familial risk strongly overlap with subsequent dyslexia in Chinese children. Overall, rapid automatized naming and morphological awareness are relatively strong correlates of developmental dyslexia in Chinese; visual skill and phonological awareness may also be uniquely associated with subsequent literacy development in at-risk and typically developing children, respectively. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2010.02299.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=116

Word recognition and cognitive profiles of Chinese pre-school children at risk for dyslexia through language delay or familial history of dyslexia / Catherine MCBRIDE-CHANG in Journal of Child Psychology and Psychiatry, 49-2 (February 2008)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 49-2 (February 2008) . - p.211–218 Titre : Word recognition and cognitive profiles of Chinese pre-school children at risk for dyslexia through language delay or familial history of dyslexia Type de document : Texte imprimé et/ou numérique Auteurs : Catherine MCBRIDE-CHANG, Auteur ; Fanny LAM, Auteur ; Catherine LAM, Auteur ; Sylvia DOO, Auteur ; Simpson W.L. WONG, Auteur ; Yvonne Y.Y. CHOW, Auteur Année de publication : 2008 Article en page(s) : p.211–218 Langues : Anglais (eng) Mots-clés : Language-impairment genetic-risk dyslexia Chinese-children lexical-tone Index. décimale : PER Périodiques Résumé : This study sought to identify cognitive abilities that might distinguish Hong Kong Chinese kindergarten children at risk for dyslexia through either language delay or familial history of dyslexia from children who were not at risk and to examine how these abilities were associated with Chinese word recognition. The cognitive skills of interest were syllable awareness, tone detection, rapid automatised naming, visual skill, and morphological awareness. Method: We recruited 36 children whose sibling had been previously diagnosed with dyslexia (familial risk group) and 36 children who were initially reported to have difficulties in preschool literacy acquisition by either teachers or parents and subsequently found to demonstrate clinical at-risk factors in aspects of language by paediatricians (language delayed group); the mean age of these groups was approximately 61 months. Thirty-six children with no such risk factors were matched by age, IQ, and parents’ education to the at-risk groups. All children were tested on cognitive skills and Chinese word recognition. Results: Compared to the controls, children in the language delayed group scored significantly lower on all measures, whereas children in the familial risk group performed significantly worse only on tone detection, morphological awareness, and Chinese word recognition. In regression analyses, word recognition was best explained by morphological awareness, tone detection and visual skill. Conclusions: Language-related measures are strongly associated with early reading development and impairment in Hong Kong Chinese children. Tests of tone detection and morphological awareness may be important clinical tools for diagnosing risk for reading problems in young Chinese children. In contrast, Chinese language delay may be associated with broader cognitive impairments as found previously in various Indo-European languages (e.g., Bishop & Snowling, 2004). En ligne : http://dx.doi.org/10.1111/j.1469-7610.2007.01837.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=321 [article] Word recognition and cognitive profiles of Chinese pre-school children at risk for dyslexia through language delay or familial history of dyslexia [Texte imprimé et/ou numérique] / Catherine MCBRIDE-CHANG, Auteur ; Fanny LAM, Auteur ; Catherine LAM, Auteur ; Sylvia DOO, Auteur ; Simpson W.L. WONG, Auteur ; Yvonne Y.Y. CHOW, Auteur . - 2008 . - p.211–218. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 49-2 (February 2008) . - p.211–218 Mots-clés : Language-impairment genetic-risk dyslexia Chinese-children lexical-tone Index. décimale : PER Périodiques Résumé : This study sought to identify cognitive abilities that might distinguish Hong Kong Chinese kindergarten children at risk for dyslexia through either language delay or familial history of dyslexia from children who were not at risk and to examine how these abilities were associated with Chinese word recognition. The cognitive skills of interest were syllable awareness, tone detection, rapid automatised naming, visual skill, and morphological awareness. Method: We recruited 36 children whose sibling had been previously diagnosed with dyslexia (familial risk group) and 36 children who were initially reported to have difficulties in preschool literacy acquisition by either teachers or parents and subsequently found to demonstrate clinical at-risk factors in aspects of language by paediatricians (language delayed group); the mean age of these groups was approximately 61 months. Thirty-six children with no such risk factors were matched by age, IQ, and parents’ education to the at-risk groups. All children were tested on cognitive skills and Chinese word recognition. Results: Compared to the controls, children in the language delayed group scored significantly lower on all measures, whereas children in the familial risk group performed significantly worse only on tone detection, morphological awareness, and Chinese word recognition. In regression analyses, word recognition was best explained by morphological awareness, tone detection and visual skill. Conclusions: Language-related measures are strongly associated with early reading development and impairment in Hong Kong Chinese children. Tests of tone detection and morphological awareness may be important clinical tools for diagnosing risk for reading problems in young Chinese children. In contrast, Chinese language delay may be associated with broader cognitive impairments as found previously in various Indo-European languages (e.g., Bishop & Snowling, 2004). En ligne : http://dx.doi.org/10.1111/j.1469-7610.2007.01837.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=321

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