title: A Retrospective Video Analysis of Canonical Babbling and Volubility in Infants with Fragile X Syndrome at 9-12 Months of Age.
abstract: An infant's vocal capacity develops significantly during the first year of life. Research suggests early measures of pre-speech development, such as canonical babbling and volubility, can differentiate typical versus disordered development. This study offers a new contribution by comparing early vocal development in 10 infants with Fragile X syndrome and 14 with typical development. Results suggest infants with Fragile X syndrome produce fewer syllables and have significantly lower canonical babbling ratios compared to infants who are typically developing. Furthermore, the particular measures of babbling were strong predictors of group membership, adding evidence regarding the possible utility of these markers in early identification.
authors.affiliation: The Department of Speech-Language Pathology, Duquesne University, 409 Fisher Hall, 701 Forbes Avenue, Pittsburgh, PA, 15282, USA. belardik@duq.edu.
authors.forename: Katie
authors.initials: K
authors.lastname: Belardi
authors.affiliation: The Department of Allied Health Sciences, The University of North Carolina - Chapel Hill, Bondurant Hall, CB #7190, Chapel Hill, NC, 27599-7190, USA.
authors.forename: Linda R
authors.initials: LR
authors.lastname: Watson
authors.affiliation: The Department of Allied Health Sciences and The Office of Research, The University of North Carolina - Chapel Hill, Bondurant Hall, CB #7122, Chapel Hill, NC, 27599-7122, USA.
authors.forename: Richard A
authors.initials: RA
authors.lastname: Faldowski
authors.affiliation: The Carolina Institute for Developmental Disabilities, The University of North Carolina - Chapel Hill, CB #7255, Chapel Hill, NC, 27599-7255, USA.
authors.forename: Heather
authors.initials: H
authors.lastname: Hazlett
authors.affiliation: The Department of Allied Health Sciences, The University of North Carolina - Chapel Hill, Bondurant Hall, CB #7190, Chapel Hill, NC, 27599-7190, USA.
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Crais
authors.affiliation: The Department of Allied Health Sciences and The Office of Research, The University of North Carolina - Chapel Hill, Bondurant Hall, CB #7122, Chapel Hill, NC, 27599-7122, USA.
authors.forename: Grace T
authors.initials: GT
authors.lastname: Baranek
authors.affiliation: The Department of Allied Health Sciences, The University of North Carolina - Chapel Hill, Bondurant Hall, CB #7190, Chapel Hill, NC, 27599-7190, USA.
authors.forename: Cara
authors.initials: C
authors.lastname: McComish
authors.affiliation: Department of Audiology and Speech Pathology, University of Tennessee Health Science Center, 434 South Stadium Hall, Knoxville, TN, 37996, USA.
authors.forename: Elena
authors.initials: E
authors.lastname: Patten
authors.affiliation: The University of Memphis, 807 Jefferson Avenue, Memphis, TN, 28105, USA.|Konrad Lorenz Institute for Evolution and Cognition Research, Klosterneuburg, Austria.
authors.forename: D Kimbrough
authors.initials: DK
authors.lastname: Oller
mesh_terms: D005260:Female; D005600:Fragile X Syndrome / Q000523:psychology*; D006801:Humans; D007223:Infant; D007804:Language Development; D008297:Male; D012189:Retrospective Studies; D014743:Videotape Recording
keywords: Canonical babbling; Fragile X syndrome; Language development