Naturalistic Language Recordings Reveal "Hypervocal" Infants at High Familial Risk for Autism.

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TitleNaturalistic Language Recordings Reveal "Hypervocal" Infants at High Familial Risk for Autism.
Publication TypeJournal Article
Year of Publication2018
AuthorsSwanson, MR, Shen, MD, Wolff, JJ, Boyd, B, Clements, M, Rehg, J, Elison, JT, Paterson, S, Parish-Morris, J, J Chappell, C, Hazlett, HC, Emerson, RW, Botteron, K, Pandey, J, Schultz, RT, Dager, SR, Zwaigenbaum, L, Estes, AM, Piven, J
Corporate AuthorsIBIS Network
JournalChild Dev
Volume89
Issue2
Paginatione60-e73
Date Published2018 Mar
ISSN1467-8624
Abstract

Children's early language environments are related to later development. Little is known about this association in siblings of children with autism spectrum disorder (ASD), who often experience language delays or have ASD. Fifty-nine 9-month-old infants at high or low familial risk for ASD contributed full-day in-home language recordings. High-risk infants produced more vocalizations than low-risk peers; conversational turns and adult words did not differ by group. Vocalization differences were driven by a subgroup of "hypervocal" infants. Despite more vocalizations overall, these infants engaged in less social babbling during a standardized clinic assessment, and they experienced fewer conversational turns relative to their rate of vocalizations. Two ways in which these individual and environmental differences may relate to subsequent development are discussed.

DOI10.1111/cdev.12777
Alternate JournalChild Dev
PubMed ID28295208
PubMed Central IDPMC5592123
Grant ListU54 HD083091 / HD / NICHD NIH HHS / United States
P30 ES010126 / ES / NIEHS NIH HHS / United States
U54 EB005149 / EB / NIBIB NIH HHS / United States
P30 HD003110 / HD / NICHD NIH HHS / United States
T32 HD040127 / HD / NICHD NIH HHS / United States
K99 MH108700 / MH / NIMH NIH HHS / United States
U54 HD086984 / HD / NICHD NIH HHS / United States
K01 MH101653 / MH / NIMH NIH HHS / United States
R01 HD055741 / HD / NICHD NIH HHS / United States