[article]
| Titre : |
Predictors of longer-term development of expressive language in two independent longitudinal cohorts of language-delayed preschoolers with Autism Spectrum Disorder |
| Type de document : |
Texte imprimé et/ou numérique |
| Auteurs : |
Vanessa H. BAL, Auteur ; Megan FOK, Auteur ; Catherine LORD, Auteur ; Isabel M SMITH, Auteur ; Pat MIRENDA, Auteur ; Peter SZATMARI, Auteur ; Tracy VAILLANCOURT, Auteur ; Joanne VOLDEN, Auteur ; Charlotte WADDELL, Auteur ; Lonnie ZWAIGENBAUM, Auteur ; Terry BENNETT, Auteur ; Eric DUKU, Auteur ; Mayada ELSABBAGH, Auteur ; Stelios GEORGIADES, Auteur ; Wendy J. UNGAR, Auteur ; Anat ZAIDMAN-ZAIT, Auteur |
| Article en page(s) : |
p.826-835 |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Autism spectrum disorder language longitudinal studies motor skills conflicts of interest. |
| Index. décimale : |
PER Périodiques |
| Résumé : |
BACKGROUND: Studies estimate that 30% of individuals with autism are minimally verbal. Understanding what factors predict longer-term expressive development in children with language delays is critical to inform identification and treatment of those at-risk for persistent language impairments. The present study examined predictors of expressive language development in language-delayed preschoolers followed through later school-age and young adulthood. METHODS: Children using single words or less on the Autism Diagnostic Observation Schedule (ADOS) at approximately 3 years old were drawn from the Early Diagnosis (EDX) and Pathways in ASD longitudinal cohorts. Age-3 predictors of Age-19 ADOS language level were identified using Classification and Regression Trees (CART) in the EDX sample. Linear mixed models examined the effects of CART-identified predictors on Vineland expressive communication (VExp) trajectories from Age-3 to Age-19. The same linear mixed models were examined in the Pathways sample, identifying predictors of VExp from ages 3 to 10.5 years. RESULTS: Significantly delayed fine motor skills (T-score < 20) was the strongest CART predictor of Age-19 language. In the linear mixed models, time, Age-3 fine motor skills and initiation of joint attention (IJA) predicted VExp trajectories in the EDX sample, even when controlling for Age-3 visual receptive abilities. In the Pathways sample, time and Age-3 fine motor skills were significant predictors of VExp trajectories; IJA and cognitive skills were not significant predictors. CONCLUSIONS: Marked deficits in fine motor skills may be a salient proxy marker for identifying language-delayed children with ASD who are at risk for persistent language impairments. This finding adds to the literature demonstrating a relation between motor and language development in ASD. Investigating individual skill areas (e.g., fine motor and nonverbal problem-solving skills), rather than broader indices of developmental level (e.g., nonverbal IQ) may provide important cues to understanding longer-term language outcomes that can be targeted in early intervention. |
| En ligne : |
http://dx.doi.org/10.1111/jcpp.13117 |
| Permalink : |
https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=429 |
in Journal of Child Psychology and Psychiatry > 61-7 (July 2020) . - p.826-835
[article] Predictors of longer-term development of expressive language in two independent longitudinal cohorts of language-delayed preschoolers with Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Vanessa H. BAL, Auteur ; Megan FOK, Auteur ; Catherine LORD, Auteur ; Isabel M SMITH, Auteur ; Pat MIRENDA, Auteur ; Peter SZATMARI, Auteur ; Tracy VAILLANCOURT, Auteur ; Joanne VOLDEN, Auteur ; Charlotte WADDELL, Auteur ; Lonnie ZWAIGENBAUM, Auteur ; Terry BENNETT, Auteur ; Eric DUKU, Auteur ; Mayada ELSABBAGH, Auteur ; Stelios GEORGIADES, Auteur ; Wendy J. UNGAR, Auteur ; Anat ZAIDMAN-ZAIT, Auteur . - p.826-835. Langues : Anglais ( eng) in Journal of Child Psychology and Psychiatry > 61-7 (July 2020) . - p.826-835
| Mots-clés : |
Autism spectrum disorder language longitudinal studies motor skills conflicts of interest. |
| Index. décimale : |
PER Périodiques |
| Résumé : |
BACKGROUND: Studies estimate that 30% of individuals with autism are minimally verbal. Understanding what factors predict longer-term expressive development in children with language delays is critical to inform identification and treatment of those at-risk for persistent language impairments. The present study examined predictors of expressive language development in language-delayed preschoolers followed through later school-age and young adulthood. METHODS: Children using single words or less on the Autism Diagnostic Observation Schedule (ADOS) at approximately 3 years old were drawn from the Early Diagnosis (EDX) and Pathways in ASD longitudinal cohorts. Age-3 predictors of Age-19 ADOS language level were identified using Classification and Regression Trees (CART) in the EDX sample. Linear mixed models examined the effects of CART-identified predictors on Vineland expressive communication (VExp) trajectories from Age-3 to Age-19. The same linear mixed models were examined in the Pathways sample, identifying predictors of VExp from ages 3 to 10.5 years. RESULTS: Significantly delayed fine motor skills (T-score < 20) was the strongest CART predictor of Age-19 language. In the linear mixed models, time, Age-3 fine motor skills and initiation of joint attention (IJA) predicted VExp trajectories in the EDX sample, even when controlling for Age-3 visual receptive abilities. In the Pathways sample, time and Age-3 fine motor skills were significant predictors of VExp trajectories; IJA and cognitive skills were not significant predictors. CONCLUSIONS: Marked deficits in fine motor skills may be a salient proxy marker for identifying language-delayed children with ASD who are at risk for persistent language impairments. This finding adds to the literature demonstrating a relation between motor and language development in ASD. Investigating individual skill areas (e.g., fine motor and nonverbal problem-solving skills), rather than broader indices of developmental level (e.g., nonverbal IQ) may provide important cues to understanding longer-term language outcomes that can be targeted in early intervention. |
| En ligne : |
http://dx.doi.org/10.1111/jcpp.13117 |
| Permalink : |
https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=429 |
|
Predictors of longer-term development of expressive language in two independent longitudinal cohorts of language-delayed preschoolers with Autism Spectrum Disorder in Journal of Child Psychology and Psychiatry, 61-7 (July 2020)
