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Neural substrate for fluent speech in persons who stutter

Research Project

Project/Area Number 22700569
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Rehabilitation science/Welfare engineering
Research InstitutionNational Institute for Physiological Sciences

Principal Investigator

OKAZAKI Shuntaro  生理学研究所, 大脳皮質機能研究系, 特別協力研究員 (80455378)

Project Period (FY) 2010 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords聴覚 / 発話 / 吃音 / 脳・神経 / 流暢性
Research Abstract

A slight delay in auditory feedback(delayed auditory feedback or DAF) or choral speaking with others ameliorate the stuttering. However, the basic mechanism for fluent speech in persons who stutter under these conditions has remained unclear. Here we investigated the open-loop characteristics of speech control by presenting a recorded speech instead of real-time feedback. Persons who stutter(PWS) and who do not stutter(PWNS) were instructed to speak when they heard the recorded speech(as a pseudo auditory feedback) with variable onset asynchrony(preceded or delayed). We found that the utterance became synchronized to the auditory feedback, regardless of the instruction to ignore it. This result suggests that there is anticipatory speech control using the history of auditory feedback, resulting in the fluent speech in PWS under DAF or choral speech.

Report

(3 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • Research Products

    (6 results)

All 2011 2010 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (3 results) Remarks (1 results)

  • [Journal Article] Effects of delayed auditory feedback on the vocal time-reproduction2010

    • Author(s)
      S Okazaki, K Mori, C Cai
    • Journal Title

      Acoustical letter

      Volume: 31 Pages: 408-410

    • NAID

      130000727358

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Effects of delayed auditory feedback on the vocal time-reproduction.2010

    • Author(s)
      S Okazaki, K Mori, C Cai
    • Journal Title

      Acoustical letter

      Volume: 31 Pages: 408-410

    • NAID

      130000727358

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] Asynchronous auditory feedback paces speech2011

    • Author(s)
      S Okazaki, K Mori, C Cai, M Okada
    • Organizer
      9th Oxford Dysfluency Conference
    • Place of Presentation
      St Catherine' College, Oxford, UK
    • Year and Date
      2011-09-03
    • Related Report
      2011 Final Research Report
  • [Presentation] Asynchronous auditory feedback paces speech2011

    • Author(s)
      Shuntaro Okazaki, Koichi Mori, Chang Cai, Minae Okada
    • Organizer
      9^<th> Oxford Dysfluency Conference
    • Place of Presentation
      St Catherine' College, Oxford, UK
    • Year and Date
      2011-09-03
    • Related Report
      2011 Annual Research Report
  • [Presentation] Asynchronous auditory feedback paces speech2010

    • Author(s)
      岡崎俊太郎,森浩一,蔡暢
    • Organizer
      聴覚研究会
    • Place of Presentation
      同志社大学(京都府)
    • Year and Date
      2010-05-14
    • Related Report
      2011 Final Research Report 2010 Annual Research Report
  • [Remarks] 講演:岡崎俊太郎,「吃音と聴覚」,京都言友会吃音改善研究会例会, 2011年1月16日

    • Related Report
      2011 Final Research Report

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Published: 2010-08-23   Modified: 2016-04-21  

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