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06-12-2018 | Original Paper

Atypicalities of Gesture Form and Function in Autistic Adults

Auteurs: A. de Marchena, E. S. Kim, A. Bagdasarov, J. Parish-Morris, B. B. Maddox, E. S. Brodkin, R. T. Schultz

Gepubliceerd in: Journal of Autism and Developmental Disorders | Uitgave 4/2019

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Abstract

While well-represented on clinical measures, co-speech gesture production has never been formally studied in autistic adults. Twenty-one verbally fluent autistic adults and 21 typically developing controls engaged in a controlled conversational task. Group differences were observed in both semantic/pragmatic and motoric features of spontaneously produced co-speech gestures. Autistic adults prioritized different functions of co-speech gesture. Specifically, they used gesture more than controls to facilitate conversational turn-taking, demonstrating a novel nonverbal strategy for regulating conversational dynamics. Autistic adults were more likely to gesture unilaterally than bilaterally, a motoric feature of gesture that was individually associated with autism symptoms. Co-speech gestures may provide a link between nonverbal communication symptoms and known differences in motor performance in autism.
Bijlagen
Alleen toegankelijk voor geautoriseerde gebruikers
Voetnoten
1
“Autistic person” is the term preferred by many adult self-advocates on the autism spectrum (e.g., Kenny et al. 2016; Lydia 2015), and will therefore be used throughout this paper.
 
2
On the ADOS-2, Module 4, one of the algorithm items (A10) specifically assesses co-speech gestures, thus, to check for circularity, we ran the same analyses with all algorithm items, except A10, as the dependent variable, and the pattern of results was identical.
 
3
We note that all autistic adults in the current sample had recently participated in the TUNE In social skills intervention. Conversational turn-taking skills were explicitly addressed and practiced as part of this treatment, although gestures were not specifically targeted. It is possible that some adults in this sample spontaneously learned to use gestures to regulate turn taking as part of their involvement in this treatment.
 
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Metagegevens
Titel
Atypicalities of Gesture Form and Function in Autistic Adults
Auteurs
A. de Marchena
E. S. Kim
A. Bagdasarov
J. Parish-Morris
B. B. Maddox
E. S. Brodkin
R. T. Schultz
Publicatiedatum
06-12-2018
Uitgeverij
Springer US
Gepubliceerd in
Journal of Autism and Developmental Disorders / Uitgave 4/2019
Print ISSN: 0162-3257
Elektronisch ISSN: 1573-3432
DOI
https://doi.org/10.1007/s10803-018-3829-x

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