Early lateralization of gestures in autism : right-handed points predict expressive language

Dimitrova, Nevena (Haute école de travail social et de la santé EESP Lausanne, HES-SO) ; Mohr, Christine (Université de Lausanne) ; Özçalışkan, Şeyda (Georgia State University) ; Adamson, Lauren B. (Georgia State University)

Children with autism spectrum disorder (ASD) produce fewer deictic gestures, accompanied by delays/deviations in speech development, compared to typically-developing (TD) children. We ask whether children with ASD—like TD children—show right-hand preference in gesturing and whether right-handed gestures predict their vocabulary size in speech. Our analysis of handedness in gesturing in children with ASD (n = 23, Mage = 30-months) and with TD (n = 23, Mage = 18-months) during mother–child play showed a right-hand preference for TD children—but not for children with ASD. Nonetheless, right-handed deictic gestures predicted expressive vocabulary 1 year later in both children with ASD and with TD. Handedness for gesture, both hand preference and amount of right-handed pointing, may be an important indicator of language development in autism and typical development.


Keywords:
Article Type:
scientifique
Faculty:
Travail social
Branch:
Travail social
School:
HETSL
Institute:
LaReSS - Laboratoire de Recherche Santé - Social, HETSL
Subject(s):
Travail social
Date:
2019-12
Pagination:
12 p.
Published in:
Journal of autism and developmental disorders
Numeration (vol. no.):
2019, no. 50. pp. 1147–1158
DOI:
ISSN:
1573-3432
ISBN:
1573-3432
Appears in Collection:

Note: The status of this file is: restricted


 Record created 2020-03-30, last modified 2020-10-27

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