Temporal features of articulation from childhood to adolescence: An electropalatographic investigation

This study was designed to investigate the development of articulatory timing from mid-childhood to late adolescence. Productions of sentences containing t , l , s , and k were produced by 48 children and adults (aged 6-38 years) and captured using the Reading Electropalatography3 (EPG3) system. Mea...

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Bibliographic Details
Published in:Clinical linguistics & phonetics 2007-06, Vol.21 (6), p.481-499
Main Authors: Cheng, Hei Yan, Murdoch, Bruce E., Goozée, Justine V.
Format: Article
Language:English
Subjects:
Adolescent
Adult
Age Differences
Age Factors
Articulation (Speech)
Child
Children
coarticulation
Diagnostic Tests
Electrodiagnosis
England (Reading)
EPG
Female
Humans
Language Acquisition
Language Development
Late Adolescents
Linguistics
Male
motor control
Palate - physiology
Phonation - physiology
Phonemes
Phonetics
Psycholinguistics
Psychology of language
Psychomotor Skills
Reading
Reference Values
Sentences
Signal Processing, Computer-Assisted
Skill Development
Sound Spectrography
Speech Communication
Speech development
Speech production and perception
Speech Production Measurement
tongue
Tongue - physiology
variability
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Summary:This study was designed to investigate the development of articulatory timing from mid-childhood to late adolescence. Productions of sentences containing t , l , s , and k were produced by 48 children and adults (aged 6-38 years) and captured using the Reading Electropalatography3 (EPG3) system. Mean duration of the sentences and the approach, closure stable constriction, and release phases of consonant articulation were calculated. In addition, temporal coordination of lingual gestures and the intra-subject articulatory timing variation were investigated across the ages. Results reveal some distinct differences in duration and temporal coordination of lingual gestures between 6- to 7-year-olds and mature speakers, with continual refinement of articulatory control indicated into late adolescence. Differences in articulatory stability, in contrast, were not significant. The present findings may form a platform for development of a more descriptive model of motor speech development.
ISSN:0269-9206
1464-5076
DOI:10.1080/02699200701325043