Do children with autism spectrum disorders show a shape bias in word learning? / Saime TEK in Autism Research, 1-4 (August 2008)  

Public ISBD [article]  inAutism Research > 1-4 (August 2008) . - p.208-222 Titre : Do children with autism spectrum disorders show a shape bias in word learning? Type de document : Texte imprimé et/ou numérique Auteurs : Saime TEK, Auteur ; Gul JAFFERY, Auteur ; Letitia R. NAIGLES, Auteur ; Deborah A. FEIN, Auteur Année de publication : 2008 Article en page(s) : p.208-222 Langues : Anglais (eng) Mots-clés : shape-bias word-learning language development Index. décimale : PER Périodiques Résumé : Many children with autism spectrum disorders (ASD) acquire a sizeable lexicon. However, these children also seem to understand and/or store the meanings of words differently from typically developing children. One of the mechanisms that helps typically developing children learn novel words is the shape bias, in which the referent of a noun is mapped onto the shape of an object, rather than onto its color, texture, or size. We hypothesized that children with autistic disorder would show reduced or absent shape bias. Using the intermodal preferential looking paradigm , we compared the performance of young children with ASD and typically developing children (TYP), across four time points, in their use of shape bias. Neither group showed a shape bias at Visit 1, when half of the children in both groups produced fewer than 50 count nouns. Only the TYP group showed a shape bias at Visits 2, 3, and 4. According to the growth curve analyses, the rate of increase in the shape bias scores over time was significant for the TYP children. The fact that the TYP group showed a shape bias at 24 months of age, whereas children with ASD did not demonstrate a shape bias despite a sizeable vocabulary, supports a dissociation between vocabulary size and principles governing acquisition in ASD children from early in language development. En ligne : http://dx.doi.org/10.1002/aur.38 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=932 [article] Do children with autism spectrum disorders show a shape bias in word learning? [Texte imprimé et/ou numérique] / Saime TEK, Auteur ; Gul JAFFERY, Auteur ; Letitia R. NAIGLES, Auteur ; Deborah A. FEIN, Auteur . - 2008 . - p.208-222. Langues : Anglais (eng) in Autism Research > 1-4 (August 2008) . - p.208-222 Mots-clés : shape-bias word-learning language development Index. décimale : PER Périodiques Résumé : Many children with autism spectrum disorders (ASD) acquire a sizeable lexicon. However, these children also seem to understand and/or store the meanings of words differently from typically developing children. One of the mechanisms that helps typically developing children learn novel words is the shape bias, in which the referent of a noun is mapped onto the shape of an object, rather than onto its color, texture, or size. We hypothesized that children with autistic disorder would show reduced or absent shape bias. Using the intermodal preferential looking paradigm , we compared the performance of young children with ASD and typically developing children (TYP), across four time points, in their use of shape bias. Neither group showed a shape bias at Visit 1, when half of the children in both groups produced fewer than 50 count nouns. Only the TYP group showed a shape bias at Visits 2, 3, and 4. According to the growth curve analyses, the rate of increase in the shape bias scores over time was significant for the TYP children. The fact that the TYP group showed a shape bias at 24 months of age, whereas children with ASD did not demonstrate a shape bias despite a sizeable vocabulary, supports a dissociation between vocabulary size and principles governing acquisition in ASD children from early in language development. En ligne : http://dx.doi.org/10.1002/aur.38 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=932

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