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Examination of an articulation assessment method that uses acoustic analysis

Research Project

Project/Area Number 15K11371
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Orthodontics/Pediatric dentistry
Research InstitutionShowa University

Principal Investigator

SUGIYAMA Tomomi  昭和大学, 歯学部, 講師 (20433823)

Co-Investigator(Kenkyū-buntansha) 小田 訓子 (池田訓子)  昭和大学, 歯学部, 講師 (70365708)
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2017: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords口腔機能 / 構音発達 / 構音障害 / 音響分析 / 舌圧
Outline of Final Research Achievements

Subjects comprised 32 unimpaired children with no discernible problems in development, 5 children diagnosed with dysarthria due to ankyloglossia by a speech-language-hearing therapist, and 4 children who visited our hospital with cleft lip and palate.Subjects stood in a soundproof room and were recorded a total of three times speaking test sounds that were <s> ,<sh> and <a> . The recorded speech was input into the Multi-Speech software. and consonant parts were spliced out by visual inspection. Next, unbiased estimation was used to render a power spectrum from the cepstrum method for smoothing the logarithm spectrum.
Results and Discussion: Comparison of the maximum frequency peaks of <s> and <sh> articulations for all subjects revealed that the peak for <s> articulation was higher than that for <sh> articulation.Frequencies oftended to be lower in children with ankyloglossia or cleft lip and palate than those in unimpaired children.

Academic Significance and Societal Importance of the Research Achievements

従来は言語と口腔の関係について検討する報告は非常に少なく、聴覚印象での検討、MR法を利用した構音機能の検討や構音時の舌接触部位を利用した診断法などがある。従来の方法では構音特徴を定量化してとらえることが困難であったため、指導の評価は聴覚印象に頼ることが多く、舌・口唇など口腔機能の客観的評価を行う方法はとられていなかった。本研究によって、器質性構音障害患者の評価を術前・術後で行い、治療の有用性・リハビリの必要性について明らかにすることができた。また、機能性構音障害患者に対しては、形態異常がないにもかかわらず、明らかに健常とは異なる音響学的特徴があり、治療が必要であることが明らかとなった。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (3 results)

All 2018 2017 2016

All Presentation (3 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] 対応に苦慮したEEC症候群の1例2018

    • Author(s)
      杉山 智美
    • Organizer
      日本小児歯科学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Examination of an articulation assessment method that uses acoustic analysis2017

    • Author(s)
      Tomomi Sugiyama、Kuniko Oda
    • Organizer
      IAPD Chili 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 小児における側音化構音の診断法の検討2016

    • Author(s)
      杉山智美、小田訓子
    • Organizer
      日本小児歯科学会
    • Place of Presentation
      山梨県甲府市
    • Related Report
      2016 Research-status Report

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Published: 2015-04-16   Modified: 2020-03-30  

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