Oral articulatory control in childhood apraxia of speech

Research output: Contribution to journalArticle

Abstract

Purpose: The purpose of this research was to examine spatial and temporal aspects of articulatory control in children with childhood apraxia of speech (CAS), children with speech delay characterized by an articulation/ phonological impairment (SD), and controls with typical development (TD) during speech tasks that increased in word length. Method: The participants included 33 children (11 CAS, 11 SD, and 11 TD) between 3 and 7 years of age. A motion capture system was used to track jaw, lower lip, and upper lip movement during a naming task. Movement duration, velocity, displacement, and variability were measured from accurate word productions. Results: Movement variability was significantly higher in the children with CAS compared with participants in the SD and TD groups. Differences in temporal control were seen between both groups of children with speech impairment and the controls with TD during accurate word productions. As word length increased, movement duration and variability differed between the children with CAS and those with SD. Conclusions: These findings provide evidence that movement variability distinguishes children with CAS from speakers with SD. Kinematic differences between the participants with CAS and those with SD suggest that these groups respond differently to linguistic challenges.

Original languageEnglish (US)
Pages (from-to)1103-1118
Number of pages16
JournalJournal of Speech, Language, and Hearing Research
Volume58
Issue number4
DOIs
StatePublished - Aug 1 2015

Fingerprint

Apraxias
childhood
Lip
Articulation Disorders
Language Development Disorders
Childhood Apraxia of Speech
Linguistics
Group
Jaw
Biomechanical Phenomena
linguistics

ASJC Scopus subject areas

  • Speech and Hearing
  • Language and Linguistics
  • Linguistics and Language

Cite this

Oral articulatory control in childhood apraxia of speech. / Grigos, Maria I.; Moss, Aviva; Lu, Ying.

In: Journal of Speech, Language, and Hearing Research, Vol. 58, No. 4, 01.08.2015, p. 1103-1118.

Research output: Contribution to journalArticle

@article{5f17dd1083a046a08114054df6198f64,
title = "Oral articulatory control in childhood apraxia of speech",
abstract = "Purpose: The purpose of this research was to examine spatial and temporal aspects of articulatory control in children with childhood apraxia of speech (CAS), children with speech delay characterized by an articulation/ phonological impairment (SD), and controls with typical development (TD) during speech tasks that increased in word length. Method: The participants included 33 children (11 CAS, 11 SD, and 11 TD) between 3 and 7 years of age. A motion capture system was used to track jaw, lower lip, and upper lip movement during a naming task. Movement duration, velocity, displacement, and variability were measured from accurate word productions. Results: Movement variability was significantly higher in the children with CAS compared with participants in the SD and TD groups. Differences in temporal control were seen between both groups of children with speech impairment and the controls with TD during accurate word productions. As word length increased, movement duration and variability differed between the children with CAS and those with SD. Conclusions: These findings provide evidence that movement variability distinguishes children with CAS from speakers with SD. Kinematic differences between the participants with CAS and those with SD suggest that these groups respond differently to linguistic challenges.",
author = "Grigos, {Maria I.} and Aviva Moss and Ying Lu",
year = "2015",
month = "8",
day = "1",
doi = "10.1044/2015_JSLHR-S-13-0221",
language = "English (US)",
volume = "58",
pages = "1103--1118",
journal = "Journal of Speech, Language, and Hearing Research",
issn = "1092-4388",
publisher = "American Speech-Language-Hearing Association (ASHA)",
number = "4",

}

TY - JOUR

T1 - Oral articulatory control in childhood apraxia of speech

AU - Grigos, Maria I.

AU - Moss, Aviva

AU - Lu, Ying

PY - 2015/8/1

Y1 - 2015/8/1

N2 - Purpose: The purpose of this research was to examine spatial and temporal aspects of articulatory control in children with childhood apraxia of speech (CAS), children with speech delay characterized by an articulation/ phonological impairment (SD), and controls with typical development (TD) during speech tasks that increased in word length. Method: The participants included 33 children (11 CAS, 11 SD, and 11 TD) between 3 and 7 years of age. A motion capture system was used to track jaw, lower lip, and upper lip movement during a naming task. Movement duration, velocity, displacement, and variability were measured from accurate word productions. Results: Movement variability was significantly higher in the children with CAS compared with participants in the SD and TD groups. Differences in temporal control were seen between both groups of children with speech impairment and the controls with TD during accurate word productions. As word length increased, movement duration and variability differed between the children with CAS and those with SD. Conclusions: These findings provide evidence that movement variability distinguishes children with CAS from speakers with SD. Kinematic differences between the participants with CAS and those with SD suggest that these groups respond differently to linguistic challenges.

AB - Purpose: The purpose of this research was to examine spatial and temporal aspects of articulatory control in children with childhood apraxia of speech (CAS), children with speech delay characterized by an articulation/ phonological impairment (SD), and controls with typical development (TD) during speech tasks that increased in word length. Method: The participants included 33 children (11 CAS, 11 SD, and 11 TD) between 3 and 7 years of age. A motion capture system was used to track jaw, lower lip, and upper lip movement during a naming task. Movement duration, velocity, displacement, and variability were measured from accurate word productions. Results: Movement variability was significantly higher in the children with CAS compared with participants in the SD and TD groups. Differences in temporal control were seen between both groups of children with speech impairment and the controls with TD during accurate word productions. As word length increased, movement duration and variability differed between the children with CAS and those with SD. Conclusions: These findings provide evidence that movement variability distinguishes children with CAS from speakers with SD. Kinematic differences between the participants with CAS and those with SD suggest that these groups respond differently to linguistic challenges.

UR - http://www.scopus.com/inward/record.url?scp=84939553830&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84939553830&partnerID=8YFLogxK

U2 - 10.1044/2015_JSLHR-S-13-0221

DO - 10.1044/2015_JSLHR-S-13-0221

M3 - Article

C2 - 25951237

AN - SCOPUS:84939553830

VL - 58

SP - 1103

EP - 1118

JO - Journal of Speech, Language, and Hearing Research

JF - Journal of Speech, Language, and Hearing Research

SN - 1092-4388

IS - 4

ER -