• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Auditory processing processes in bilateral cochlear implant users

Research Project

Project/Area Number 20K11183
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 59010:Rehabilitation science-related
Research InstitutionNagoya University

Principal Investigator

Yoshida Tadao  名古屋大学, 医学系研究科, 准教授 (90567017)

Co-Investigator(Kenkyū-buntansha) 曽根 三千彦  名古屋大学, 医学系研究科, 教授 (30273238)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords人工内耳 / 聴覚検査 / 両側装用 / 聴覚
Outline of Research at the Start

成人の人工内耳両側装用は2017年に人工内耳適応基準が改定になったことを受け増加傾向にあるが、その実際の効果についてはまだ明らかとなっていない。人工内耳機器にも現状では健聴者の聴覚能と比較して限界があるのも事実である。
本研究では、高度から重度の感音難聴患者が人工内耳を両側に装用することによって生じる潜在的効果および表情認識によって読話能力が評価可能であるかどうかについて検討を行う。両側装用のさらなる利点、欠点を明らかにすることで人工内耳の機器選択、プログラムの開発、リハビリテーションの技術向上に貢献すると考えられる。

Outline of Final Research Achievements

In a comparison of bilateral and unilateral implantation in sequential bilateral cochlear implant surgery cases more than 6 months after implantation, SRT was better in bilateral implantation, but the first side tended to be slightly better. However, in the interactive spatial listening test, there was no difference in the direction of the noise. However, in the interactive spatial listening test, binaural hearing aid users showed better discrimination of the minimum angle. Additive and squelch effects due to binaural use were observed, but limited effects were suggested for SRM. This is a new finding that the effect of noise on hearing is important, and that an environment in which the effect of noise on the good hearing ear is minimal is better.

Academic Significance and Societal Importance of the Research Achievements

両耳聴効果とされる両耳加算効果、頭部遮蔽効果、両耳スケルチ、方向感などについいて人工内耳の両側装用の効果が得られる傾向にあった。新たな知見として両側人工内耳装用下では、雑音の方向を変えて比較した検査では効果が限定的である可能性が示唆された。これは人工内耳装用者の言葉の聞き取りは音の到来方向の差よりも良聴耳への雑音の有無が重要であり、ターゲット音の聞き取りには良聴耳に雑音が少ない環境が良いのではないかと考えられた。良聴耳、不良聴耳が存在する場合、リハビリテーションの方法を雑音下の聞き取りにより重点を置いた内容が必要と考えられ、今後の人工内耳リハビリテーションの取り組みに活かされると考えられた。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (13 results)

All 2023 2022 2021 2020

All Journal Article (8 results) (of which Peer Reviewed: 7 results,  Open Access: 3 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Evaluation of the Listening Environment of Bilateral Cochlear Implant Users through Data Logging: A Comparison of Bilateral Simultaneous and Sequential Implantation2023

    • Author(s)
      Yoshida Tadao、Hara Daisuke、Kobayashi Masumi、Sugimoto Satofumi、Fukunaga Yukari、Sone Michihiko
    • Journal Title

      Otology & Neurotology

      Volume: 44 Issue: 8 Pages: e560-e565

    • DOI

      10.1097/mao.0000000000003955

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Presence of endolymphatic hydrops on listening difficulties in patients with normal hearing level2023

    • Author(s)
      Yoshida Tadao、Kobayashi Masumi、Sugimoto Satofumi、Fukunaga Yukari、Hara Daisuke、Naganawa Shinji、Sone Michihiko
    • Journal Title

      Acta Oto-Laryngologica

      Volume: 143 Issue: 2 Pages: 163-169

    • DOI

      10.1080/00016489.2023.2182450

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Labyrinthine calcification in ears with otitis media and antineutrophil cytoplasmic antibody-associated vasculitis (OMAAV): A report of two cases2023

    • Author(s)
      Yoshida Tadao、Kobayashi Masumi、Sugimoto Satofumi、Naganawa Shinji、Sone Michihiko
    • Journal Title

      Auris Nasus Larynx

      Volume: 50 Issue: 2 Pages: 299-304

    • DOI

      10.1016/j.anl.2022.01.004

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Impact of endolymphatic hydrops on DPOAE in subjects with normal to mild hearing loss2022

    • Author(s)
      Inagaki Kei、Yoshida Tadao、Kobayashi Masumi、Sugimoto Satofumi、Fukunaga Yukari、Hara Daisuke、Naganawa Shinji、Sone Michihiko
    • Journal Title

      Laryngoscope Investigative Otolaryngology

      Volume: 8 Issue: 1 Pages: 262-268

    • DOI

      10.1002/lio2.998

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 17O-labeled water distribution in the human inner ear: Insights into lymphatic dynamics and vestibular function2022

    • Author(s)
      Yoshida Tadao、Naganawa Shinji、Kobayashi Masumi、Sugimoto Satofumi、Katayama Naomi、Nakashima Tsutomu、Kato Yutaka、Ichikawa Kazushige、Yamaguchi Hiroshi、Nishida Kazuki、Sone Michihiko
    • Journal Title

      Frontiers in Neurology

      Volume: 13 Pages: 01-15

    • DOI

      10.3389/fneur.2022.1016577

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of the blood-perilymph barrier in ears with endolymphatic hydrops.2021

    • Author(s)
      Yoshida T, Kobayashi M, Sugimoto S, Teranishi M, Naganawa S, Sone M.
    • Journal Title

      Acta Otolaryngol

      Volume: 141 Issue: 8 Pages: 736-741

    • DOI

      10.1080/00016489.2021.1957500

    • NAID

      120007183214

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Cochlear implantation in patient with Charcot-Marie-Tooth disease2021

    • Author(s)
      Kobayashi Masumi、Yoshida Tadao、Sugimoto Satofumi、Teranishi Masaaki、Hara Daisuke、Kimata Yukari、Sone Michihiko
    • Journal Title

      Auris Nasus Larynx

      Volume: 48 Issue: 2 Pages: 327-330

    • DOI

      10.1016/j.anl.2020.03.003

    • NAID

      120007183204

    • Related Report
      2020 Research-status Report
  • [Journal Article] Effects of endolymphatic hydrops on acoustic energy absorbance2020

    • Author(s)
      Kobayashi Masumi、Yoshida Tadao、Sugimoto Satofumi、Shimono Mariko、Teranishi Masaaki、Naganawa Shinji、Sone Michihiko
    • Journal Title

      Acta Oto-Laryngologica

      Volume: 140 Issue: 8 Pages: 618-623

    • DOI

      10.1080/00016489.2020.1754460

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] MRI による17O標識水の内耳動態評価2022

    • Author(s)
      吉田忠雄
    • Organizer
      第32回日本耳科学会学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] 聴覚情報処理障害例におけるMRI内リンパ水腫評価2022

    • Author(s)
      吉田忠雄
    • Organizer
      第67回日本聴覚医学会学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] 内耳造影MRI施行症例の蓄積から何がわかったか2022

    • Author(s)
      吉田忠雄
    • Organizer
      第81回日本めまい平衡医学会学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] Cochlear Implant Surgery in the Elderly2021

    • Author(s)
      Tadao Yoshida
    • Organizer
      13th Asia Pacific Symposium on Cochlear Implants and Related Sciences
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Labyrinthine calcification in ears with otitis media and antineutrophil cytoplasmic antibody-associated vasculitis (OMAAV): a report of two cases2021

    • Author(s)
      Tadao Yoshida
    • Organizer
      7th East Asian symposium on Otology
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi