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KMID : 1022420140060030033
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Phonetics and Speech Sciences
2014 Volume.6 No. 3 p.33 ~ p.40
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Alternating Motion Rate Characteristics in Children with Childhood Apraxia of Speech
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Park Jun-Beom
Ha Seung-Hee
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Abstract
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The purpose of the study was to examine alternating motion rate and its variability in children with childhood apraxia ofspeech (CAS) compared to typically developing children. Six children with CAS aged 9-12 years old and 10 children whowere age-matched participated in the study. This study measured tokens per second and variabilities of the rates during theproduction of /p* a/, /t* a/, and /k* a/. For variability measures of the rates, each participant was asked to repeat speechtasks three times and the average value of the rates and its standard deviation were obtained. The results revealed that theCAS group showed slower rate only at /k* a/ than the control group. The CAS group exhibited greater variability of AMR atall the tasks than the control group. The results suggested that variability of AMR might be a more distinctive speech featureto children with CAS than the rate of the speech task.
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KEYWORD
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childhood apraxia of speech, variability, alternating motion rate
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