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Gepubliceerd in: Journal of Autism and Developmental Disorders 7/2021

03-10-2020 | Original Paper

Visual Traces of Language Acquisition in Toddlers with Autism Spectrum Disorder During the Second Year of Life

Auteurs: Serene Habayeb, Tawny Tsang, Celine Saulnier, Cheryl Klaiman, Warren Jones, Ami Klin, Laura A. Edwards

Gepubliceerd in: Journal of Autism and Developmental Disorders | Uitgave 7/2021

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Abstract

Infants show shifting patterns of visual engagement to faces over the first years of life. To explore the adaptive implications of this engagement, we collected eye-tracking measures on cross-sectional samples of 10–25-month-old typically developing toddlers (TD;N = 28) and those with autism spectrum disorder (ASD;N = 54). Concurrent language assessments were conducted and relationships between visual engagement and expressive and receptive language were analyzed between groups, and within ASD subgroups. TD and ASD toddlers exhibited greater mouth- than eye-looking, with TD exhibiting higher levels of mouth-looking than ASD. Mouth-looking was positively associated with expressive language in TD toddlers, and in ASD toddlers who had acquired first words. Mouth-looking was unrelated to expressive language in ASD toddlers who had not yet acquired first words.
Bijlagen
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Voetnoten
1
Nonverbal developmental quotient = {[(Fine Motor Age Equivalent Score + Visual Reception Age Equivalent Score)/2]/Chronological Age (months)}*100.
 
2
Note that this analysis was both hypothesized to be of importance—and only possible—within the ASD sample as only 3 of our TD toddlers had not yet acquired first words.
 
3
Associations between eye- and mouth-looking in the ASD-Words and ASD-No Words subgroups were similar to that of the overall ASD and TD groups (ASD-Words r = − 0.80, p < .001; ASD-No Words r = − 0.82, p < .001, respectively).
 
4
Although preliminary analyses to formally test for this variation (one-way ANOVAs of eye- and mouth-looking by Mullen expressive item 11 score) found no significant effects (TD-eye: F(2,21) = 0.94, p = 0.406; TD-mouth: F(2,21) = 1.34, p = 0.284; ASD-eye: F(3,47) = 1.23, p = 0.310; ASD-mouth: F(3,47) = 0.72, p = 0.547) we retain this limitation as we might be underpowered to detect effects when splitting our samples into the 4 Mullen expressive language item 11 categories, particularly in the case of our 28 TD toddlers.
 
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Metagegevens
Titel
Visual Traces of Language Acquisition in Toddlers with Autism Spectrum Disorder During the Second Year of Life
Auteurs
Serene Habayeb
Tawny Tsang
Celine Saulnier
Cheryl Klaiman
Warren Jones
Ami Klin
Laura A. Edwards
Publicatiedatum
03-10-2020
Uitgeverij
Springer US
Gepubliceerd in
Journal of Autism and Developmental Disorders / Uitgave 7/2021
Print ISSN: 0162-3257
Elektronisch ISSN: 1573-3432
DOI
https://doi.org/10.1007/s10803-020-04730-x