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Development of Infrared Hearing Aid

Research Project

Project/Area Number 15K12069
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Perceptual information processing
Research InstitutionDoshisha University

Principal Investigator

kobayasi kohta  同志社大学, 生命医科学部, 准教授 (40512736)

Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords補聴器 / 聴性脳幹反応 / 赤外線レーザー刺激 / 人工感覚器 / 蝸牛 / 赤外線レーザー / スナネズミ / 新型補聴器 / 周波数追従反応 / 難聴 / 人工臓器 / 人工内耳 / ピッチ知覚
Outline of Final Research Achievements

Cochlear implants are widely used to restore hearing, but implanting an electrode needs a major surgical intervention. The purpose of this study was to explore the possibility of using the laser, which generate compound action potentials from neurons without contacting tissues, as less invasive alternative for a hearing aid, and we specifically targeted 1) to establish the scheme for stimulating cochlear nerves by infrared laser and 2) to develop a speech-coding scheme for laser stimulation to convey intelligible speech. As results, stimulating the cochlear nerve through the round window successfully evoked the neural activity resembling auditory brainstem responses, and the response can be modified by changing the repetition rate and intensity of the laser. In addition, we created a click-modulated speech sound to simulate infrared laser stimulation, and the sound was partially intelligible. In total, our results suggest that an infrared laser could restore speech perception.

Report

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

    (12 results)

All 2018 2017 2016 2015

All Journal Article (6 results) (of which Peer Reviewed: 4 results,  Open Access: 4 results,  Acknowledgement Compliant: 2 results) Presentation (5 results) (of which Int'l Joint Research: 4 results) Book (1 results)

  • [Journal Article] Demonstration of a novel speech-coding method for single-channel cochlear stimulation2018

    • Author(s)
      Tamai, Yuta Hiryu, Shizuko Kobayasi, Kohta I.
    • Journal Title

      同志社大学ハリス理化学研究報告

      Volume: 58 Issue: 4 Pages: 224-229

    • DOI

      10.14988/pa.2017.0000016914

    • NAID

      120006394927

    • ISSN
      21895937
    • URL

      https://doshisha.repo.nii.ac.jp/records/26012

    • Year and Date
      2018-01-31
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Infrared neural stimulation evokes auditory brain stem responses following the acoustic feature of speech sounds2017

    • Author(s)
      Tamai, Yuta Shinpo, Yuka Horinouchi, Kensuke Hiryu, Shizuko Kobayasi, Kohta I.
    • Journal Title

      同志社大学ハリス理化学研究報告

      Volume: 57 Issue: 4 Pages: 254-261

    • DOI

      10.14988/pa.2017.0000015336

    • NAID

      120006023596

    • ISSN
      21895937
    • URL

      https://doshisha.repo.nii.ac.jp/records/24946

    • Year and Date
      2017-01-31
    • Related Report
      2017 Annual Research Report 2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Acoustic characteristics used by Japanese macaques for individual discrimination2017

    • Author(s)
      Furuyama Takafumi、Kobayasi Kohta I.、Riquimaroux Hiroshi
    • Journal Title

      The Journal of Experimental Biology

      Volume: 220 Pages: 3571-3578

    • DOI

      10.1242/jeb.154765

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Role of vocal tract characteristics in individual discrimination by Japanese macaques (Macaca fuscata)2016

    • Author(s)
      Takafumi Furuyama, Kohta I. Kobayasi, Hiroshi Riquimaroux
    • Journal Title

      Scientific Reports

      Volume: 6 Pages: 1-8

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Speech perception created by noninvasive direct cochlear stimulation2016

    • Author(s)
      Yuta Tamai,Yuka Shinpo,Kensuke Horinouchi, Makoto Arimura,Sizuko Hiryu,Kohta I. Kobayashi
    • Journal Title

      聴覚研究会資料

      Volume: 46 Pages: 465-470

    • Related Report
      2016 Research-status Report
    • Acknowledgement Compliant
  • [Journal Article] Optic method for stimulating cochlear nerve in Mongolian gerbi2015

    • Author(s)
      Yuta TAMAI, Suguru MATSUI, kota I. KOBAYASI, Hiroshi RIQUIMAROUX
    • Journal Title

      日本音響学会聴覚研究会資料

      Volume: 45 Pages: 135-139

    • Related Report
      2015 Research-status Report
    • Acknowledgement Compliant
  • [Presentation] Auditory brainstem responses recorded from inferior colliculus in Miniopterus fuliginosus2017

    • Author(s)
      T. FURUYAMA, K. HASE, S. HIRYU, K. I. KOBAYASI
    • Organizer
      Society for Neuroscience
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Amplification of auditory brainstem response by simultaneous infrared laser stimulation to cochlea2017

    • Author(s)
      K. HORINOUCHI, Y. TAMAI, S. HIRYU, K. I. KOBAYASHI
    • Organizer
      Society for Neuroscience
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] How to create the intelligible speech perception by cochlear nerve stimulation?2016

    • Author(s)
      Yuta Tamai, Shizuko Hiryu, Kohta I. Kobayasi
    • Organizer
      Society for Neuroscience
    • Place of Presentation
      San Diego, USA
    • Year and Date
      2016-11-12
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] レーザー補聴器の開発:電気生理学と音響心理学による検討2016

    • Author(s)
      玉井湧太,松井優,飛龍志津子,小林耕太
    • Organizer
      電子情報通信学会
    • Place of Presentation
      九州大学
    • Year and Date
      2016-03-15
    • Related Report
      2015 Research-status Report
  • [Presentation] Action potential generated by optical stimulation to the round window in Mongolian gerbil2015

    • Author(s)
      Yuta Tamai, Suguru Matsui, kohta I. kobayasi, Hiroshi Riquimaroux
    • Organizer
      Tokyo Lectures in Language Evolution
    • Place of Presentation
      東京大学
    • Year and Date
      2015-04-11
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Book] 勝てる脳、負ける脳 一流アスリートの脳内で起きていること2017

    • Author(s)
      内田 暁、小林 耕太
    • Total Pages
      224
    • Publisher
      集英社
    • ISBN
      4087210073
    • Related Report
      2017 Annual Research Report

URL: 

Published: 2015-04-16   Modified: 2019-03-29  

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