Comorbidities in preschool children at family risk of dyslexia / Debbie GOOCH in Journal of Child Psychology and Psychiatry, 55-3 (March 2014)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 55-3 (March 2014) . - p.237-246 Titre : Comorbidities in preschool children at family risk of dyslexia Type de document : texte imprimé Auteurs : Debbie GOOCH, Auteur ; Charles HULME, Auteur ; Hannah M. NASH, Auteur ; Margaret J. SNOWLING, Auteur Article en page(s) : p.237-246 Langues : Anglais (eng) Mots-clés : Comorbidity  language disorder  dyslexia  motor skills  executive function Index. décimale : PER Périodiques Résumé : Background Comorbidity among developmental disorders such as dyslexia, language impairment, attention deficit/hyperactivity disorder and developmental coordination disorder is common. This study explores comorbid weaknesses in preschool children at family risk of dyslexia with and without language impairment and considers the role that comorbidity plays in determining children's outcomes. Method The preschool attention, executive function and motor skills of 112 children at family risk for dyslexia, 29 of whom also met criteria for language impairment, were assessed at ages 3½ and 4½ years. The performance of these children was compared to the performance of children with language impairment and typically developing controls. Results Weaknesses in attention, executive function and motor skills were associated with language impairment rather than family risk status. Individual differences in language and executive function are strongly related during the preschool period, and preschool motor skills predicted unique variance (4%) in early reading skills over and above children's language ability. Conclusion Comorbidity between developmental disorders can be observed in the preschool years: children with language impairment have significant and persistent weaknesses in motor skills and executive function compared to those without language impairment. Children's early language and motor skills are predictors of children's later reading skills. En ligne : http://dx.doi.org/10.1111/jcpp.12139 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=226 [article] Comorbidities in preschool children at family risk of dyslexia [texte imprimé] / Debbie GOOCH, Auteur ; Charles HULME, Auteur ; Hannah M. NASH, Auteur ; Margaret J. SNOWLING, Auteur . - p.237-246. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 55-3 (March 2014) . - p.237-246 Mots-clés : Comorbidity  language disorder  dyslexia  motor skills  executive function Index. décimale : PER Périodiques Résumé : Background Comorbidity among developmental disorders such as dyslexia, language impairment, attention deficit/hyperactivity disorder and developmental coordination disorder is common. This study explores comorbid weaknesses in preschool children at family risk of dyslexia with and without language impairment and considers the role that comorbidity plays in determining children's outcomes. Method The preschool attention, executive function and motor skills of 112 children at family risk for dyslexia, 29 of whom also met criteria for language impairment, were assessed at ages 3½ and 4½ years. The performance of these children was compared to the performance of children with language impairment and typically developing controls. Results Weaknesses in attention, executive function and motor skills were associated with language impairment rather than family risk status. Individual differences in language and executive function are strongly related during the preschool period, and preschool motor skills predicted unique variance (4%) in early reading skills over and above children's language ability. Conclusion Comorbidity between developmental disorders can be observed in the preschool years: children with language impairment have significant and persistent weaknesses in motor skills and executive function compared to those without language impairment. Children's early language and motor skills are predictors of children's later reading skills. En ligne : http://dx.doi.org/10.1111/jcpp.12139 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=226

Developmental dyslexia: predicting individual risk / Paul A. THOMPSON in Journal of Child Psychology and Psychiatry, 56-9 (September 2015)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 56-9 (September 2015) . - p.976-987 Titre : Developmental dyslexia: predicting individual risk Type de document : texte imprimé Auteurs : Paul A. THOMPSON, Auteur ; Charles HULME, Auteur ; Hannah M. NASH, Auteur ; Debbie GOOCH, Auteur ; Emma HAYIOU-THOMAS, Auteur ; Margaret J. SNOWLING, Auteur Article en page(s) : p.976-987 Langues : Anglais (eng) Mots-clés : Familial (family) risk  dyslexia  reading disability  language skills  executive motor  early identification Index. décimale : PER Périodiques Résumé : Background Causal theories of dyslexia suggest that it is a heritable disorder, which is the outcome of multiple risk factors. However, whether early screening for dyslexia is viable is not yet known. Methods The study followed children at high risk of dyslexia from preschool through the early primary years assessing them from age 3 years and 6 months (T1) at approximately annual intervals on tasks tapping cognitive, language, and executive-motor skills. The children were recruited to three groups: children at family risk of dyslexia, children with concerns regarding speech, and language development at 3;06 years and controls considered to be typically developing. At 8 years, children were classified as ‘dyslexic’ or not. Logistic regression models were used to predict the individual risk of dyslexia and to investigate how risk factors accumulate to predict poor literacy outcomes. Results Family-risk status was a stronger predictor of dyslexia at 8 years than low language in preschool. Additional predictors in the preschool years include letter knowledge, phonological awareness, rapid automatized naming, and executive skills. At the time of school entry, language skills become significant predictors, and motor skills add a small but significant increase to the prediction probability. We present classification accuracy using different probability cutoffs for logistic regression models and ROC curves to highlight the accumulation of risk factors at the individual level. Conclusions Dyslexia is the outcome of multiple risk factors and children with language difficulties at school entry are at high risk. Family history of dyslexia is a predictor of literacy outcome from the preschool years. However, screening does not reach an acceptable clinical level until close to school entry when letter knowledge, phonological awareness, and RAN, rather than family risk, together provide good sensitivity and specificity as a screening battery. En ligne : http://dx.doi.org/10.1111/jcpp.12412 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=267 [article] Developmental dyslexia: predicting individual risk [texte imprimé] / Paul A. THOMPSON, Auteur ; Charles HULME, Auteur ; Hannah M. NASH, Auteur ; Debbie GOOCH, Auteur ; Emma HAYIOU-THOMAS, Auteur ; Margaret J. SNOWLING, Auteur . - p.976-987. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 56-9 (September 2015) . - p.976-987 Mots-clés : Familial (family) risk  dyslexia  reading disability  language skills  executive motor  early identification Index. décimale : PER Périodiques Résumé : Background Causal theories of dyslexia suggest that it is a heritable disorder, which is the outcome of multiple risk factors. However, whether early screening for dyslexia is viable is not yet known. Methods The study followed children at high risk of dyslexia from preschool through the early primary years assessing them from age 3 years and 6 months (T1) at approximately annual intervals on tasks tapping cognitive, language, and executive-motor skills. The children were recruited to three groups: children at family risk of dyslexia, children with concerns regarding speech, and language development at 3;06 years and controls considered to be typically developing. At 8 years, children were classified as ‘dyslexic’ or not. Logistic regression models were used to predict the individual risk of dyslexia and to investigate how risk factors accumulate to predict poor literacy outcomes. Results Family-risk status was a stronger predictor of dyslexia at 8 years than low language in preschool. Additional predictors in the preschool years include letter knowledge, phonological awareness, rapid automatized naming, and executive skills. At the time of school entry, language skills become significant predictors, and motor skills add a small but significant increase to the prediction probability. We present classification accuracy using different probability cutoffs for logistic regression models and ROC curves to highlight the accumulation of risk factors at the individual level. Conclusions Dyslexia is the outcome of multiple risk factors and children with language difficulties at school entry are at high risk. Family history of dyslexia is a predictor of literacy outcome from the preschool years. However, screening does not reach an acceptable clinical level until close to school entry when letter knowledge, phonological awareness, and RAN, rather than family risk, together provide good sensitivity and specificity as a screening battery. En ligne : http://dx.doi.org/10.1111/jcpp.12412 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=267

Dyslexia and Developmental Language Disorder: comorbid disorders with distinct effects on reading comprehension / Margaret J. SNOWLING in Journal of Child Psychology and Psychiatry, 61-6 (June 2020)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 61-6 (June 2020) . - p.672-680 Titre : Dyslexia and Developmental Language Disorder: comorbid disorders with distinct effects on reading comprehension Type de document : texte imprimé Auteurs : Margaret J. SNOWLING, Auteur ; Marianna E. HAYIOU-THOMAS, Auteur ; Hannah M. NASH, Auteur ; Charles HULME, Auteur Article en page(s) : p.672-680 Langues : Anglais (eng) Mots-clés : Developmental Language Disorder  Reading comprehension  decoding  dyslexia  language Index. décimale : PER Périodiques Résumé : BACKGROUND: Reading comprehension draws on both decoding and linguistic comprehension, and poor reading comprehension can be the consequence of a deficit in either of these skills. METHODS: Using outcome data from the longitudinal Wellcome Language and Reading Project, we identified three groups of children at age 8 years: children with dyslexia (N = 21) who had deficits in decoding but not oral language, children with Developmental Language Disorder (DLD; N = 38) whose decoding skills were in the normal range, and children who met criteria for both dyslexia and DLD (N = 29). RESULTS: All three groups had reading comprehension difficulties at the ages of 8 and 9 years relative to TD controls though those of the children with dyslexia were mild (relative to TD controls, d = 0.51 at age 8, d = 0.60 at age 8); while the most severe problems were found in the comorbid dyslexia + DLD group (d = 1.79 at age 8, d = 2.06 at age 9) those with DLD also had significant difficulties (d = 1.56 at age 8, d = 1.56 at age 9). CONCLUSIONS: These findings confirm that children with dyslexia or DLD are at-risk for reading comprehension difficulties but for different reasons, because of weak decoding in the case of dyslexia or weak oral language skills in the case of DLD. Different forms of intervention are required for these groups of children, targeted to their particular area(s) of weakness. En ligne : http://dx.doi.org/10.1111/jcpp.13140 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=426 [article] Dyslexia and Developmental Language Disorder: comorbid disorders with distinct effects on reading comprehension [texte imprimé] / Margaret J. SNOWLING, Auteur ; Marianna E. HAYIOU-THOMAS, Auteur ; Hannah M. NASH, Auteur ; Charles HULME, Auteur . - p.672-680. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 61-6 (June 2020) . - p.672-680 Mots-clés : Developmental Language Disorder  Reading comprehension  decoding  dyslexia  language Index. décimale : PER Périodiques Résumé : BACKGROUND: Reading comprehension draws on both decoding and linguistic comprehension, and poor reading comprehension can be the consequence of a deficit in either of these skills. METHODS: Using outcome data from the longitudinal Wellcome Language and Reading Project, we identified three groups of children at age 8 years: children with dyslexia (N = 21) who had deficits in decoding but not oral language, children with Developmental Language Disorder (DLD; N = 38) whose decoding skills were in the normal range, and children who met criteria for both dyslexia and DLD (N = 29). RESULTS: All three groups had reading comprehension difficulties at the ages of 8 and 9 years relative to TD controls though those of the children with dyslexia were mild (relative to TD controls, d = 0.51 at age 8, d = 0.60 at age 8); while the most severe problems were found in the comorbid dyslexia + DLD group (d = 1.79 at age 8, d = 2.06 at age 9) those with DLD also had significant difficulties (d = 1.56 at age 8, d = 1.56 at age 9). CONCLUSIONS: These findings confirm that children with dyslexia or DLD are at-risk for reading comprehension difficulties but for different reasons, because of weak decoding in the case of dyslexia or weak oral language skills in the case of DLD. Different forms of intervention are required for these groups of children, targeted to their particular area(s) of weakness. En ligne : http://dx.doi.org/10.1111/jcpp.13140 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=426

Language profiles and literacy outcomes of children with resolving, emerging, or persisting language impairments / Margaret J. SNOWLING in Journal of Child Psychology and Psychiatry, 57-12 (December 2016)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 57-12 (December 2016) . - p.1360-1369 Titre : Language profiles and literacy outcomes of children with resolving, emerging, or persisting language impairments Type de document : texte imprimé Auteurs : Margaret J. SNOWLING, Auteur ; Fiona J. DUFF, Auteur ; Hannah M. NASH, Auteur ; Charles HULME, Auteur Article en page(s) : p.1360-1369 Langues : Anglais (eng) Mots-clés : Language disorder  reading  language  specific language impairment Index. décimale : PER Périodiques Résumé : Background Children with language impairment (LI) show heterogeneity in development. We tracked children from pre-school to middle childhood to characterize three developmental trajectories: resolving, persisting and emerging LI. Methods We analyzed data from children identified as having preschool LI, or being at family risk of dyslexia, together with typically developing controls at three time points: t1 (age 3;09), t3 (5;08) and t5 (8;01). Language measures are reported at t1, t3 and t5, and literacy abilities at t3 and t5. A research diagnosis of LI (irrespective of recruitment group) was validated at t1 by a composite language score derived from measures of receptive and expressive grammar and vocabulary; a score falling 1SD below the mean of the typical language group on comparable measures at t3 and t5 was used to determine whether a child had LI at later time points and then to classify LIs as resolving, persisting or emerging. Results Persisting preschool LIs were more severe and pervasive than resolving LIs. Language and literacy outcomes were relatively poor for those with persisting LI, and relatively good for those with resolving LI. A significant proportion of children with average language abilities in preschool had LIs that emerged in middle childhood – a high proportion of these children were at family risk of dyslexia. There were more boys in the persisting and resolving LI groups. Children with early LIs which resolved by the start of formal literacy instruction tended to have good literacy outcomes; children with late-emerging difficulties that persisted developed reading difficulties. Conclusions Children with late-emerging LI are relatively common and are hard to detect in the preschool years. Our findings show that children whose LIs persist to the point of formal literacy instruction frequently experience reading difficulties. En ligne : http://dx.doi.org/10.1111/jcpp.12497 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=297 [article] Language profiles and literacy outcomes of children with resolving, emerging, or persisting language impairments [texte imprimé] / Margaret J. SNOWLING, Auteur ; Fiona J. DUFF, Auteur ; Hannah M. NASH, Auteur ; Charles HULME, Auteur . - p.1360-1369. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 57-12 (December 2016) . - p.1360-1369 Mots-clés : Language disorder  reading  language  specific language impairment Index. décimale : PER Périodiques Résumé : Background Children with language impairment (LI) show heterogeneity in development. We tracked children from pre-school to middle childhood to characterize three developmental trajectories: resolving, persisting and emerging LI. Methods We analyzed data from children identified as having preschool LI, or being at family risk of dyslexia, together with typically developing controls at three time points: t1 (age 3;09), t3 (5;08) and t5 (8;01). Language measures are reported at t1, t3 and t5, and literacy abilities at t3 and t5. A research diagnosis of LI (irrespective of recruitment group) was validated at t1 by a composite language score derived from measures of receptive and expressive grammar and vocabulary; a score falling 1SD below the mean of the typical language group on comparable measures at t3 and t5 was used to determine whether a child had LI at later time points and then to classify LIs as resolving, persisting or emerging. Results Persisting preschool LIs were more severe and pervasive than resolving LIs. Language and literacy outcomes were relatively poor for those with persisting LI, and relatively good for those with resolving LI. A significant proportion of children with average language abilities in preschool had LIs that emerged in middle childhood – a high proportion of these children were at family risk of dyslexia. There were more boys in the persisting and resolving LI groups. Children with early LIs which resolved by the start of formal literacy instruction tended to have good literacy outcomes; children with late-emerging difficulties that persisted developed reading difficulties. Conclusions Children with late-emerging LI are relatively common and are hard to detect in the preschool years. Our findings show that children whose LIs persist to the point of formal literacy instruction frequently experience reading difficulties. En ligne : http://dx.doi.org/10.1111/jcpp.12497 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=297

Preschool language profiles of children at family risk of dyslexia: continuities with specific language impairment / Hannah M. NASH in Journal of Child Psychology and Psychiatry, 54-9 (September 2013)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 54-9 (September 2013) . - p.958-968 Titre : Preschool language profiles of children at family risk of dyslexia: continuities with specific language impairment Type de document : texte imprimé Auteurs : Hannah M. NASH, Auteur ; Charles HULME, Auteur ; Debbie GOOCH, Auteur ; Margaret J. SNOWLING, Auteur Article en page(s) : p.958-968 Langues : Anglais (eng) Mots-clés : Dyslexia  pre-school  SLI  language Index. décimale : PER Périodiques Résumé : Background Children at family risk of dyslexia have been reported to show phonological deficits as well as broader language delays in the preschool years. Method The preschool language skills of 112 children at family risk of dyslexia (FR) at ages 3½ and 4½ were compared with those of children with SLI and typically developing (TD) controls. Results Children at FR showed two different profiles: one third of the group resembled the children with SLI and scored poorly across multiple domains of language including phonology. As a group, the remaining children had difficulties on tasks tapping phonological skills at T1 and T2. At the individual level, we confirmed that some FR children had both phonological and broader oral language difficulties (compared with TD controls), some had only phonological difficulties and some appeared to be developing typically. Conclusions We have highlighted the early overlap between family risk of dyslexia and SLI. A family history of dyslexia carries an increased risk for SLI and the two disorders both show an increased incidence of phonological deficits which appear to a proximal risk factor for developing a reading impairment. En ligne : http://dx.doi.org/10.1111/jcpp.12091 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=212 [article] Preschool language profiles of children at family risk of dyslexia: continuities with specific language impairment [texte imprimé] / Hannah M. NASH, Auteur ; Charles HULME, Auteur ; Debbie GOOCH, Auteur ; Margaret J. SNOWLING, Auteur . - p.958-968. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 54-9 (September 2013) . - p.958-968 Mots-clés : Dyslexia  pre-school  SLI  language Index. décimale : PER Périodiques Résumé : Background Children at family risk of dyslexia have been reported to show phonological deficits as well as broader language delays in the preschool years. Method The preschool language skills of 112 children at family risk of dyslexia (FR) at ages 3½ and 4½ were compared with those of children with SLI and typically developing (TD) controls. Results Children at FR showed two different profiles: one third of the group resembled the children with SLI and scored poorly across multiple domains of language including phonology. As a group, the remaining children had difficulties on tasks tapping phonological skills at T1 and T2. At the individual level, we confirmed that some FR children had both phonological and broader oral language difficulties (compared with TD controls), some had only phonological difficulties and some appeared to be developing typically. Conclusions We have highlighted the early overlap between family risk of dyslexia and SLI. A family history of dyslexia carries an increased risk for SLI and the two disorders both show an increased incidence of phonological deficits which appear to a proximal risk factor for developing a reading impairment. En ligne : http://dx.doi.org/10.1111/jcpp.12091 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=212

The development of executive function and language skills in the early school years / Debbie GOOCH in Journal of Child Psychology and Psychiatry, 57-2 (February 2016)  

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