intra-speaker variability, electropalatometry, articulation
Electropalatometry is a useful clinical and research tool for measuring linguapalatal contact. The goal of this study was to examine intra-speaker variability in performance. Twenty individuals spoke VCV nonsense words using a schwa in the initial position, the 15 palatal consonants, and three corner vowels, /ɑ/, /i/, /u/. A variability index was created to examine speaker consistency.
Different aspects of articulation (i.e. place, manner, voicing, coarticulation) were compared. Significant differences for variability were found for place of articulation in the /i/ vowel context and for manner of articulation in the /ɑ/ vowel context. Also for the /ɑ/ vowel, significant differences were found between the commonly misarticulated /l/, /r/, and /s/. The data reveal differences in production variability across sounds within an individual, as well as from one speaker to another. This knowledge of typical performance may guide the interpretation of data from disordered speakers in future studies.
Original Publication Citation
Dromey, C. & Sanders, M. (2009). Intra-speaker variability in palatometric measures of consonant articulation. Journal of Communication Disorders 42, 397-407.
BYU ScholarsArchive Citation
Dromey, Christopher and Sanders, Marybeth, "Intra-speaker Variability in Palatometric Measures of Consonant Articulation" (2009). Faculty Publications. 1780.
David O. McKay School of Education
© 2009 Elsevier Inc. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ This is the author's submitted version of this article. The definitive version can be found at http://dx.doi.org/10.1016/j.jcomdis.2009.05.001
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