Cited by 30Language Development and DisordersAutism Spectrum Disorder ResearchChild and Animal Learning Development

Low rates of pointing in 18-month-olds at risk for autism spectrum disorder and extremely preterm infants: A common index of language delay?

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Sansavini, Alessandra, Guarini, Annalisa, Zuccarini, Mariagrazia, Lee, Jessica Zong, Faldella, Giacomo, Iverson, Jana Marie·2019·Frontiers in Psychology

Abstract

Infants with an older sibling with an Autism Spectrum Disorder diagnosis (Sibs ASD) are at high risk for language delay (LD) as well as infants born preterm, especially those with an extremely low gestational age (ELGA, GA ≤28 weeks). Gestures play a crucial role in language development and delays in gesture production may have negative cascading effects on it. The present exploratory study examined gesture production in 18-month-old infants with different underlying risks for LD. Seventy monolingual US infants (41 Sibs ASD with no eventual ASD diagnosis and 29 infants with a typically developing older sibling -Sibs TD) and 40 monolingual Italian infants (20 ELGA without major cerebral damages, congenital malformations or sensory impairments and 20 full-term - FT infants, GA ≥37 weeks) were included. Both groups were followed longitudinally from 18 to 24, 30, and 36 months (corrected for ELGA infants). A 30-minute mother-infant play session with age-appropriate toys was video recorded at 18 months of age. Deictic (requesting, pointing, showing and giving), conventional, and representational gestures spontaneously produced by infants were coded; rate per 10 minutes was calculated. LD was defined as a score ≤10th percentile on the American English or Italian version of the MacArthur-Bates CDI on at least two time points between 18 and 36 months. Fifteen Sibs ASD and 9 ELGA infants were identified as infants with LD. Sibs ASD-LD and Sibs ASD-no LD produced fewer pointing gestures compared to Sibs TD (p = .038; p = .004); ELGA-LD infants produced significantly fewer pointing gestures than ELGA-no LD (p = .024) and FT (p = .006) infants. Low rates of pointing at 18 months are a marker of LD in Sibs ASD and ELGA infants. The potential implications of reduced pointing production and characteristics of different populations at risk for LD should be considered for understanding the emergence of LD.

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Authors
Sansavini, A., Guarini, A., Zuccarini, M., Lee, J. Z., Faldella, G., & Iverson, J. M.
Affiliations
  • University of Bologna (IT)
  • University of Pittsburgh (US)
Corresponding author
Sansavini, Alessandra
Venue
Frontiers in Psychology
Published
2019-10-09
Volume
10
Pages
2131-2131
ISSN
1664-1078 (ISSN-L)
OpenAlex
W2971467334
Cited by
30
References
72
Citations by year
2026: 4 · 2025: 6 · 2024: 5 · 2023: 4 · 2022: 5 · 2021: 4 · 2020: 2
FWCI
5.00
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Psychology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Archivio istituzionale della ricerca (Alma Mater Studiorum Università di Bologna) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Ministero dell’Istruzione, dell’Università e della Ricerca
  • Autism Speaks
Topics
  • Social Sciences › Psychology › Developmental and Educational Psychology › Language Development and Disorders
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Social Sciences › Psychology › Developmental and Educational Psychology › Child and Animal Learning Development
Keywords
pointing gestures, gesture production, language delay, autism spectrum disorder, extremely low gestational age, preterm infants, older siblings, representational gestures, conventional gestures, infant language development, risk indicators

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