TY - JOUR
T1 - Frequency of consonant articulation errors in dysarthric speech
AU - Kim, Heejin
AU - Martin, Katie
AU - Hasegawa-Johnson, Mark
AU - Perlman, Adrienne
N1 - Funding Information:
This work was supported by the National Institutes of Health grant R21 DC008090A. The authors thank Dr Jon Gunderson for coordinating subject recruitment through the Disability Resources and Educational Services at the University of Illinois, and Simone Frame for assisting with data collection. We also thank Mary Sesto and Kate Vanderheiden at the University of Wisconsin-Madison for their help with data collection in the Madison area. We are particularly grateful to the subjects for their participation.
PY - 2010/10
Y1 - 2010/10
N2 - This paper analyses consonant articulation errors in dysarthric speech produced by seven American-English native speakers with cerebral palsy. Twenty-three consonant phonemes were transcribed with diacritics as necessary in order to represent non-phoneme misarticulations. Error frequencies were examined with respect to six variables: articulatory complexity, place of articulation, and manner of articulation of the target phoneme; and change in articulatory complexity, place, and manner resulting from the misarticulation. Results showed that target phonemes with high articulatory complexity were most often misarticulated, independent of intelligibility, but low-intelligibility speakers reduced the complexity of target consonants more frequently. All speakers tended to misarticulate to the adjacent place of the target place, but this pattern was most prominent for high-intelligibility speakers. Low- and mid-intelligibility speakers produced more manner errors than high-intelligibility speakers. Based on these results, a two-part model of consonant articulation errors is proposed for CP-associated spastic dysarthia.
AB - This paper analyses consonant articulation errors in dysarthric speech produced by seven American-English native speakers with cerebral palsy. Twenty-three consonant phonemes were transcribed with diacritics as necessary in order to represent non-phoneme misarticulations. Error frequencies were examined with respect to six variables: articulatory complexity, place of articulation, and manner of articulation of the target phoneme; and change in articulatory complexity, place, and manner resulting from the misarticulation. Results showed that target phonemes with high articulatory complexity were most often misarticulated, independent of intelligibility, but low-intelligibility speakers reduced the complexity of target consonants more frequently. All speakers tended to misarticulate to the adjacent place of the target place, but this pattern was most prominent for high-intelligibility speakers. Low- and mid-intelligibility speakers produced more manner errors than high-intelligibility speakers. Based on these results, a two-part model of consonant articulation errors is proposed for CP-associated spastic dysarthia.
KW - Articulation errors
KW - Articulatory complexity
KW - Consonants
KW - Dysarthria
KW - Intelligibility
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U2 - 10.3109/02699206.2010.497238
DO - 10.3109/02699206.2010.497238
M3 - Article
C2 - 20831376
AN - SCOPUS:77956573085
SN - 0269-9206
VL - 24
SP - 759
EP - 770
JO - Clinical Linguistics and Phonetics
JF - Clinical Linguistics and Phonetics
IS - 10
ER -