TY - JOUR
T1 - Vowel variability and contrast in Childhood Apraxia of Speech
T2 - acoustics and articulation
AU - Lenoci, Giovanna
AU - Celata, Chiara
AU - Ricci, Irene
AU - Chilosi, Anna
AU - Barone, Vincenzo
N1 - Funding Information:
This work was funded by Fondazione Pisa, project “Speech motor disorders and visual feedback: 3D simulation of articulatory movements” granted to V. Barone (2017-2020).
Funding Information:
This work was supported by the Fondazione Pisa [progr. n. 132/16]. This work was funded by Fondazione Pisa, project ?Speech motor disorders and visual feedback: 3D simulation of articulatory movements? granted to V. Barone (2017-2020).
Publisher Copyright:
© 2020 The Author(s). Published with license by Taylor & Francis Group, LLC.
PY - 2020
Y1 - 2020
N2 - Phoneme production may be affected by limited speech motor control in Childhood Apraxia of Speech (CAS), with a general instability of acoustic targets across multiple repetitions of speech stimuli. This acoustic and Ultrasound Tongue Imaging (UTI) study shows that increased variability and reduction of contrast in vowel production is found in native Italian speakers with CAS, particularly as far as the height dimension is concerned. The data suggest that vowel production should play a major role in CAS diagnosis and treatment. Moreover, this study shows that a combined acoustic and articulatory approach allows direct observation of lingual dynamics together with an estimation of changes in the acoustic dimension. The two dimensions are shown not to correspond in a straightforward way in the speech of children with CAS, and encourage consideration of articulatory compensation strategies aimed at saving the acoustic identity of vowels.
AB - Phoneme production may be affected by limited speech motor control in Childhood Apraxia of Speech (CAS), with a general instability of acoustic targets across multiple repetitions of speech stimuli. This acoustic and Ultrasound Tongue Imaging (UTI) study shows that increased variability and reduction of contrast in vowel production is found in native Italian speakers with CAS, particularly as far as the height dimension is concerned. The data suggest that vowel production should play a major role in CAS diagnosis and treatment. Moreover, this study shows that a combined acoustic and articulatory approach allows direct observation of lingual dynamics together with an estimation of changes in the acoustic dimension. The two dimensions are shown not to correspond in a straightforward way in the speech of children with CAS, and encourage consideration of articulatory compensation strategies aimed at saving the acoustic identity of vowels.
KW - Childhood Apraxia of Speech
KW - Italian
KW - phonemic contrast
KW - phonetic variability
KW - ultrasound tongue imaging
KW - Vowel production
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U2 - 10.1080/02699206.2020.1853811
DO - 10.1080/02699206.2020.1853811
M3 - Article
C2 - 33322970
AN - SCOPUS:85097552088
VL - 35
SP - 1011
EP - 1035
JO - Clinical Linguistics and Phonetics
JF - Clinical Linguistics and Phonetics
SN - 0269-9206
IS - 11
ER -