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Auditory-visual speech processing -elucidation of its brain mechanisms, pathologies and plastic changes-

Research Project

Project/Area Number 24390386
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Otorhinolaryngology
Research InstitutionTohoku University

Principal Investigator

Kawase Tetsuaki  東北大学, 医工学研究科, 教授 (50169728)

Co-Investigator(Kenkyū-buntansha) NAKASATO NOBUKAZU  東北大学, 大学院医学系研究科, 教授 (80207753)
KANNO AKITAKE  東北大学, 加齢医学研究所, 助教 (20578968)
SAKAMOTO SHUICHI  東北大学, 電気通信研究所, 准教授 (60332524)
Project Period (FY) 2012-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2012: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Keywords脳磁図 / 視聴覚統合 / 時間窓 / 聴覚野 / 難聴 / 人工内耳 / 聴覚リハビリ / 視聴覚統合処理
Outline of Final Research Achievements

Effects of visual speech on early auditory evoked fields were examined using a helmet-shaped magnetoencephalography. Significant visual-speech effects on P50m (shortening of latency and reduction of amplitude) were observed in both hemispheres, but those on N100m were observed only in the left hemisphere. The present results may indicate that the left hemispheric dominance of lip-reading effects, which is well known at the level of the superior temporal sulcus, begins to be apparent from around the N100m level, although the lip-reading effects could be observed at the P50m level. Moreover, visual speech effects on N100m observed in the left hemisphere were maintained as long as the temporal asynchrony between A/V stimuli was within 100 ms, but not with audio lag of -500 and +500 ms; i.e., the temporal window (a limited range in which A/V perceptual binding occurs) observed in the N100m in the left hemisphere was well-correlated with that in psychophysical measurements.

Report

(5 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • Research Products

    (9 results)

All 2015 2014 2013 2012

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (8 results) (of which Invited: 2 results)

  • [Journal Article] Positive auditory cortical responses in patients with absent brainstem response2014

    • Author(s)
      Kawase T, Kanno A, Takata Y, Nakasato N, Kawashima R, Kobayashi T
    • Journal Title

      Clinical Neurophysiology

      Volume: 125 Issue: 1 Pages: 234-240

    • DOI

      10.1016/j.clinph.2013.06.184

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Presentation] 聴性誘発脳磁界に観察されるlip-reading効果の「時間窓」2015

    • Author(s)
      川瀬 哲明, 八幡 湖, 高梨 芳崇, 坂本 修一, 中里 信和, 香取 幸夫
    • Organizer
      日本聴覚医学会
    • Place of Presentation
      京王プラザホテル(東京・新宿)
    • Year and Date
      2015-10-23
    • Related Report
      2015 Annual Research Report
  • [Presentation] 視覚情報提示による聴覚誘発磁界の変化 視覚情報提示のタイミングの影響について2015

    • Author(s)
      川瀬 哲明, 高田 志穂, 八幡 湖, 高梨 芳崇, 奥村 有理, 菅野 彰剛, 中里 信和, 川島 隆太, 香取 幸夫
    • Organizer
      日本耳鼻咽喉科学会総会
    • Place of Presentation
      東京国際フォーラム
    • Year and Date
      2015-05-22
    • Related Report
      2015 Annual Research Report
  • [Presentation] 視覚情報提示による聴覚誘発磁界の変化2014

    • Author(s)
      八幡 湖、川瀬哲明、坂本修一、中里信和、香取幸夫
    • Organizer
      日本聴覚医学会総会
    • Place of Presentation
      海峡メッセ下関(下関市)
    • Year and Date
      2014-11-27 – 2014-11-28
    • Related Report
      2014 Annual Research Report
  • [Presentation] 視聴覚統合処理における脳磁場解析2014

    • Author(s)
      八幡 湖、川瀬哲明、坂本修一、中里信和、香取幸夫
    • Organizer
      日本音声言語医学会
    • Place of Presentation
      アクロス福岡(福岡市)
    • Year and Date
      2014-10-09 – 2014-10-10
    • Related Report
      2014 Annual Research Report
  • [Presentation] 視覚情報提示による聴覚誘発磁場への影響2014

    • Author(s)
      八幡 湖、川瀬哲明、菅野彰剛、坂本修一、中里信和、川島隆太、香取幸夫
    • Organizer
      日本聴覚医学会 ERA・OAE研究会
    • Place of Presentation
      慶應大学病院(東京都)
    • Year and Date
      2014-07-06
    • Related Report
      2014 Annual Research Report
  • [Presentation] Current status of auditory prostheses2014

    • Author(s)
      Tetsuaki Kawase
    • Organizer
      Innovative Research for Biosis-Abiosis Intelligent Interface Symposium (2014)
    • Place of Presentation
      Sendai (Tohoku University)
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Auditory steady state response (ASSR) observed in magnetoencephalography - possible functional significance of ASSR originated from cortex-2013

    • Author(s)
      Tetsuaki Kawase
    • Organizer
      20th International Federation of Oto-Rhino-Laryngological Society (IFOS)
    • Place of Presentation
      Korea, Seoul (COEX convention center)
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Visual benefit in bimodal training with highly distorted speech sound2012

    • Author(s)
      Sato M, Kawase T, Sakamoto S, Suzuki Y, Kobayashi T.
    • Organizer
      The 13^<th> International Multisensory Research Forum
    • Place of Presentation
      Oxford, UK
    • Year and Date
      2012-06-22
    • Related Report
      2012 Annual Research Report

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Published: 2012-04-24   Modified: 2019-07-29  

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