@article{63799cc5b83545f898ac82a30c870e3a,
title = "Naturalistic Language Recordings Reveal “Hypervocal” Infants at High Familial Risk for Autism",
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.",
author = "{the IBIS Network} and Swanson, {Meghan R.} and Shen, {Mark D.} and Wolff, {Jason J.} and Brian Boyd and Mark Clements and James Rehg and Elison, {Jed T.} and Sarah Paterson and Julia Parish-Morris and Chappell, {J. Chad} and Hazlett, {Heather C.} and Emerson, {Robert W.} and Kelly Botteron and Juhi Pandey and Schultz, {Robert T.} and Dager, {Stephen R.} and Lonnie Zwaigenbaum and Estes, {Annette M.} and Joseph Piven and D. Shaw and R. McKinstry and J. Constantino and J. Pruett and C. Evans and L. llins and B. Pike and V. Fonov and P. Kostopoulos and S. Das and G. Gerig and M. Styner and H. Gu",
note = "Publisher Copyright: {\textcopyright} 2017 The Authors. Child Development {\textcopyright} 2017 Society for Research in Child Development, Inc. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.",
year = "2018",
month = mar,
day = "1",
doi = "10.1111/cdev.12777",
language = "English",
volume = "89",
pages = "e60--e73",
journal = "Child Development",
issn = "0009-3920",
number = "2",
}