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2002 Fiscal Year Final Research Report Summary

Study of Articulatory Interaction between Native and Non-native phonemes by use of EPG and Acoustic analysis

Research Project

Project/Area Number 13672021
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 補綴理工系歯学
Research InstitutionTohoku University

Principal Investigator

ITOH Hidemi  Tohoku univ, Graduate School of dentistry, Lecturer, 大学院・歯学研究科, 講師 (50005104)

Co-Investigator(Kenkyū-buntansha) IMAIZUMI Satoshi  Hiroshima Prefecturel College of Health Science, Professor, 教授 (80122018)
SAKAMOTO Uki  Tohoku univ. Graduate School of dentistry, Research assosiate, 教育学部, 教授 (40004113)
SASAKI Tomofumi  Tohoku univ. Graduate School of dentistry, Research assosiate, 歯学部附属病院, 助手 (40323034)
Project Period (FY) 2001 – 2002
KeywordsElectro-palatogram / Acoustic analysis / Perception / Cortical plasticity / Multi Dimensional scaling / Phonetic Catagorization / Native / Non-Native
Research Abstract

Palato-lingual contact pattems were analyzed for Japanese phonemes, non-native English/r/, and /l/ uttered by native Japanese speakers. Mutual similarities between the palatolingual contact patterns for the phonemes were analyzed using a phoneme map generated by a multi-dimensional scaling(MDS), and variation speed in the contact patterns was compared. Audiovisual training in non-native speech discrimination was conducted on native Japanese adults using audiovisual recordings of native English speakers articulating 90 rl word pairs, and analysis of changes in articulatory, acoustical, perception and cortical representations of native and non-native phonetic contrasts was performed. Utterances of English /r/ and /l/ recorded from two excellent speakers of English dearly separated from each other on the map. Utterances of English /l/ positioned doser to those of Japanese /r/ than those of English/r/. The variation speed in the contact pattems was also closer to that of Japanese /r/ than English /r/ for the excellent speakers of English. These results indicated that perceptual categorization of articulatory movements and resulting phonetic sounds is listenerdependent in a language-specific way, but categorization can be plastically modified even in adulthood through training.
Based on these findings, the usefulness of acoustic approaches for proper assessment of communicative values of articulations of disordered is discussed. These results suggested that articulatory analyses of palatolimgual contact patterns provide useful information on the language acquisition.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 伊藤 秀美: "構音評価における音響分析の意義"音声言語医学. 43. 147-153 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 伊藤 秀美: "母語・非母語調音の干渉;パラトグラムによる英語・音と日本語子音の解析"電気情報通信学会・信学技報. SP2001-152. 53-58 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 佐々木 具文: "舌接触口蓋床義歯を装着した舌切除2症例の長期観察"音声言語医学. 43. 270-279 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 佐々木 具文: "上顎口蓋S状隆起部の形態変化が舌および下顎の構音機能に与える影響"第46回日本音声言語医学会・抄録集. 46. 83-86 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Itoh: "Movement-Related Magnetic Field to Tongue Protrusion"Neuro Image. 14. 924-935 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 伊藤 秀美: "舌切除患者と入れ歯"東京理科大学科学フォーラム. 3. 17-22 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Itoh Hidemi: "Acoustic Approaches for Assessment for Arficulation"Jpn.J.Logop,phoniatr. 41. 147-153 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Itoh Hidemi: "Articulatong interaction between native and non-native phonemes"Technical report of IEICE. sp2001-152. 53-58 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sasaki Tomofumi: "Long-tenn observation of Two Grossectomy patients with lingually attached prosthesis"Jpn,J.Logop,phoniatr. 43. 270-279 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sasaki Tomofumi: "Effect of the S-Shaped Curve on Lingual articulation and Mandibular Movement During Sound Production"Jpn,J.Logop,phoniatr. 46(S). 83-86 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hidemi Itoh: "Movement-Related Magnetic Held to Tongue Protnusion"Neurolmage. 14. 924-935 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Itoh Hidemi: "Dentures and Glossectomy patients"Scientic Fonim of Science of Univ.of Tokyo. 3. 17-22 (2003)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2004-04-14  

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