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Estimation of Physical Pathology of Articulatory Disorder Using Articulatory Simulator and Medical Information

Research Project

Project/Area Number 19H03976
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 59010:Rehabilitation science-related
Research InstitutionOsaka University

Principal Investigator

Nozaki Kazunori  大阪大学, 歯学部附属病院, 准教授 (40379110)

Co-Investigator(Kenkyū-buntansha) 野原 幹司  大阪大学, 歯学研究科, 准教授 (20346167)
坂本 尚久  神戸大学, システム情報学研究科, 准教授 (20402745)
吉永 司  豊橋技術科学大学, 工学(系)研究科(研究院), 助教 (50824190)
和田 成生  大阪大学, 基礎工学研究科, 教授 (70240546)
山田 朋美  大阪大学, 歯学研究科, 助教 (70452448)
笹井 正思  大阪大学, 歯学部附属病院, 助教 (90283796)
阪井 丘芳  大阪大学, 歯学研究科, 教授 (90379082)
滝口 哲也  神戸大学, 都市安全研究センター, 教授 (40397815)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2021: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2020: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2019: ¥12,870,000 (Direct Cost: ¥9,900,000、Indirect Cost: ¥2,970,000)
Keywords構音 / 数値計算 / 空力音響 / 構音障害 / 調音結合 / 医療情報 / 機械学習 / 可視化 / 解剖学的形態 / 病理 / 深層学習 / シミュレーション / 空力音 / 統計的形状 / 自己教師あり学習 / 舌癌 / 口唇口蓋裂
Outline of Research at the Start

構音障害は器質的な口腔領域の変化が音の発生過程に影響を及ぼすことで発生し,臨床現場では医学的知識を基に直感的且つ経験的にリハビリテーションを行うことで改善を図っているが,口腔形状の変化と聞き取られる音との関係が線形ではないため,直感的な対応が困難である.そこで本研究では,医療情報と音の発生メカニズムを基盤として,そこに潜む障害の病理を見つけ出し,それを制御するための知識を構築し,医療情報を媒体として基礎(研究)と臨床(リハビリテーション)が融合した予測医療の実現を目指す.

Outline of Final Research Achievements

Using a simple model of [s] articulation that reproduces raising near the tip of the tongue, we found that hysteresis exists between the total sound pressure level and the velocity of tongue raising during syllable articulation with [s]. We found that individual differences in the acoustic spectral characteristics of [s] and [sh] result from the distance of constriction between the maxillary central incisor and the anterior maxillary tongue.
Of clinical significance, we numerically analyzed the effect on [s] sound of the different angles of inclination of the maxillary full denture central incisor tooth axis, and found a mechanism by which the frequency band of 8-12 kHz is reduced when the angle is large. In addition, the effectiveness of neural network-based self-supervised learning for patients with cleft lip and palate and tongue cancer was confirmed in terms of the feasibility of speech recognition that reflects the patient's speech characteristics.

Academic Significance and Societal Importance of the Research Achievements

社会を構成する人々が健康で文化的な生活を営む上で、音声言語による会話は重要なヒトの機能の一つである。そのため、構音障害をもつ方々のリハビリテーションを支援する理論やデバイスの開発が,ダイバーシティ&インクルージョンの観点からも急務である。本研究成果は、音声言語を構成する全ての音素や単語を網羅していないが、構音障害の理解とリハビリテーションにつながるアプローチの仕方は、その他の音声言語研究に有効であろう。特に空力音響学に基づいた構音障害が生じるメカニズムの解明は、これまで医療関係者が経験則からでも想定することが困難であった、非線形物理現象を理解する上で貴重な指標となると予想される。

Report

(3 results)
  • 2021 Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (23 results)

All 2021 2020 2019 Other

All Int'l Joint Research (1 results) Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (17 results) (of which Int'l Joint Research: 7 results) Remarks (1 results)

  • [Int'l Joint Research] グルノーブル大学(フランス)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Hysteresis of aeroacoustic sound generation in the articulation of [s]2020

    • Author(s)
      Yoshinaga Tsukasa、Nozaki Kazunori、Iida Akiyoshi
    • Journal Title

      Physics of Fluids

      Volume: 32 Issue: 10 Pages: 105114-105114

    • DOI

      10.1063/5.0020312

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Acoustic modeling of fricative /s/ for an oral tract with rectangular cross-sections2020

    • Author(s)
      Yoshinaga T.、Van Hirtum A.、Nozaki K.、Wada S.
    • Journal Title

      Journal of Sound and Vibration

      Volume: 476 Pages: 115337-115337

    • DOI

      10.1016/j.jsv.2020.115337

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A simplified vocal tract model for articulation of [s]: The effect of tongue tip elevation on [s]2019

    • Author(s)
      Yoshinaga Tsukasa、Nozaki Kazunori、Wada Shigeo
    • Journal Title

      PLOS ONE

      Volume: 14 Issue: 10 Pages: e0223382-e0223382

    • DOI

      10.1371/journal.pone.0223382

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Aeroacoustic analysis on individual characteristics in sibilant fricative production2019

    • Author(s)
      Yoshinaga Tsukasa、Nozaki Kazunori、Wada Shigeo
    • Journal Title

      The Journal of the Acoustical Society of America

      Volume: 146 Issue: 2 Pages: 1239-1251

    • DOI

      10.1121/1.5122793

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] 口唇口蓋裂者の音声認識のためのデータ拡張方式の検討2021

    • Author(s)
      冨士原健斗, 高島遼一, 杉山千尋, 田中信和, 野原幹司, 野崎一徳, 滝口哲也
    • Organizer
      日本音響学会2021年春季研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] In-situ可視化向け適応的視点選択2020

    • Author(s)
      山岡義明, 坂本尚久, 野中丈士, 吉永司, 野崎一徳
    • Organizer
      第34回 数値流体力学シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] Aeroacoustic simulation on a simplified vocal tract model with tongue movement for the articulation of [s]2020

    • Author(s)
      Yoshinaga T., Nozaki K., Yokoyama, H. and Iida A.
    • Organizer
      Proceedings of 12th International Conference on Voice Physiology and Biomechanics (ICVPB2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Relationships between turbulent flow configuration and sound source location of Japanese sibilant fricatives2020

    • Author(s)
      Yoshinaga T., Nozaki K., and Iida A.
    • Organizer
      Proceedings of 12th International Seminar on Speech Production (ISSP2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Aeroacoustic simulation on sibilant fricative production using a volume penalization method2020

    • Author(s)
      Yoshinaga T., Nozaki K., Yokoyama, H. and Iida A.
    • Organizer
      Proceedings of 14th World Congress in Computational Mechanics (WCCM) and ECCOMAS Congress 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] リード式人工声帯の空力音響シミュレーション2020

    • Author(s)
      吉永司, Rafia Inaam, 荒井隆行, 横山博史, 飯田明由
    • Organizer
      日本音響学会秋季研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 人工声帯の流体―構造-音響連成シミュレーション2020

    • Author(s)
      吉永司, Rafia Inaam, 荒井隆行, 横山博史, 飯田明由
    • Organizer
      第 34 回数値流体力学シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] A framework for simulation of sibilant fricatives using implicit compressible flow solver2019

    • Author(s)
      Lu, Hsuehjui; Li, Chunggang; Iida, Akiyoshi; Yoshinaga, Tsukasa; Nozaki, Kazunori; Tsubokura, Makoto
    • Organizer
      APS Division of Fluid Dynamics (Fall) 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of vocal tract geometrical differences on flow and sound of sibilant fricatives2019

    • Author(s)
      Tsukasa Yoshinaga, Kazunori Nozaki, Shigeo Wada, Akiyoshi Iida
    • Organizer
      Acoustical Society of America
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 摩擦音/s/及び/sh/発音の被験者の違いを表す口腔単純形状モデルの構築2019

    • Author(s)
      吉永司, 野崎一徳, 和田成生
    • Organizer
      システム制御情報学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 構音障害に関する物理的に非線形な病理の解明に向けた取り組み2019

    • Author(s)
      野崎一徳, 山田朋美, 笹井正志, 岡真太郎, 林美加子
    • Organizer
      システム制御情報学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 摩擦子音構音時の鼻咽頭閉鎖機能における物理的戦略2019

    • Author(s)
      野崎一徳, 杉山千尋, 畠中耕平, 中川真智子, 阪井丘芳, 野原幹司, 苅安誠, 山城隆, 古郷幹彦
    • Organizer
      流体工学部門講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 大規模数値計算結果の時空間分布変化を考慮した適応的 In-Situ 可視化2019

    • Author(s)
      山岡義昭, 林賢悟, 坂本尚久, 野中丈士, 吉永司, 野崎一徳
    • Organizer
      流体工学部門講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Individual Differences of Airflow and Sound Generation in the Vocal Tract of Sibilant /s/2019

    • Author(s)
      Tsukasa Yoshinaga, Kazunori Nozaki, Shigeo Wada
    • Organizer
      Interspeech2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] In-Situ Adaptive Timestep Control and Visualization based on the Spatio-Temporal Variations of the Simulation Results2019

    • Author(s)
      Yoshiaki Yamaoka, Kengo Hayashi, Naohisa Sakamoto, Jorji Nonaka
    • Organizer
      In Situ Infrastructures for Enabling Extreme-scale Analysis and Visualization (ISAV2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Adaptive Spatial and Temporal Sampling for In-situ Visualization2019

    • Author(s)
      Yoshiaki Yamaoka, Naohisa Sakamoto, Jorji Nonaka
    • Organizer
      The 2nd R-CCS International Symposium, Poster presentation
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] In-situ可視化向け適応的時間サンプリング法2019

    • Author(s)
      山岡 義昭, 林 賢悟, 坂本 尚久, 野中 丈士, 吉永 司, 野崎 一徳
    • Organizer
      第33回数値流体力学シンポジウム (CFD33)
    • Related Report
      2019 Annual Research Report
  • [Remarks] 「ヒ」と「シ」の発音を混同するメカニズムをリアルタイムMRIとスーパーコンピュータにより解明

    • URL

      https://www.eurekalert.org/pub_releases_ml/2021-04/tuot-4040721.php

    • Related Report
      2020 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

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