1997 Fiscal Year Final Research Report Summary
Analysis of articulatory dynamics in esophageal speakers and its application for speech rehabilitation
| Project/Area Number |
08671983
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Otorhinolaryngology
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| Research Institution | Kitasato University |
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Principal Investigator |
HIROSE Hajime Kitasato University School of Allied Health Sciences, Professor, 医療衛生学部, 教授 (80010031)
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| Co-Investigator(Kenkyū-buntansha) |
KOIKE Minako Kitasato University School of Allied Health Sciences, Lecturer, 医療衛生学部, 講師 (50276177)
HIRAYAMA Masatoshi Kitasato University School of Medicine, Lecturer, 医学部, 講師 (00208860)
KOBAYASHI Noriko Kitasato University School of Allied Health Sciences, Professor, 医療衛生学部, 教授 (30195797)
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| Project Period (FY) |
1996 – 1997
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| Keywords | esophageal speech / articulatory dynamics / fricatives / electropalatography / linguo-palatal contact / 舌・口蓋接触パタン |
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| Research Abstract |
In order to elucidate the articulatory characteristics of esophageal speakers, speech discrimination tests were performed on the recorded samples of skilled and unskilled esophageal speakers. It was found that the discrimination score was low for voiceless stops or fircative /h/ even in skilled subjects. For the analysis of articulatory dynamics of esophageal speakers, a palatal mold was obtained and artificial palate was prepared for electropalatograhy for each subject. The same procedure was also taken in normal subjects to obtain control data samples. Electropalatographic data in esophageal speakers indicated that the area of linguo-palatal contact for fricatives was significantly narrower compared with normal subjects. It was also found that intra-oral pressure during the production of voiceless sounds tended to be higher in esophageal speakers. These results suggested that there was a special articulatory adjustment in esophageal speakers to produce some type of consonants effectively with small amount of air supply. It was concluded that this type of articulatory adjustment must be adopted for the articulatory training for esophageal speakers during the course of rehabilitaion.
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