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Auditory temporal resolution using categorical perception with or without hearing loss

Research Project

Project/Area Number 23791883
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Otorhinolaryngology
Research InstitutionNiigata University

Principal Investigator

AIZAWA Naotaka  新潟大学, 医歯学系, 助教 (60464012)

Project Period (FY) 2011-04-28 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2013: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords聴覚時間分解能 / カテゴリー知覚 / Gap検知 / ギャップ検知閾 / 有声開始時間(VOT)
Outline of Final Research Achievements

Acoustic stimulus presentation was designed as mentioned below. Acoustic stimuli of 500ms were included gaps ranging from 5 to 70 ms in duration were placed in two positions in wideband noise bursts with the leading noise of 5ms and the trailing noise. Of sound A and B, the gap duration was defined as 5ms and 70ms. The gap duration of Sound X was variable from 5 to 70ms at 5ms intervals. Gap detection was studied using sound presentation of A-B-X and B-A-X to young humans without hearing loss, when sound X was recognized as sound B. Threshold of gap detection was resulted in 25ms in both methods A-B-X and B-A-X. This result is similar to that of categorical perception using /ba/-/pa/ sound stimuli. Therefore, it was considered these acoustic stimuli using wideband noise with gap was appreciate to measurement of acoustic temporal resolution.

Report

(5 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (4 results)

All 2014 2013

All Presentation (4 results)

  • [Presentation] ネコの一次聴覚野における時間分解能の検討2014

    • Author(s)
      相澤 直孝
    • Organizer
      日本聴覚医学会 内耳ひずみ研究会
    • Place of Presentation
      東京都 慶應大学病院大会議室
    • Year and Date
      2014-07-03
    • Related Report
      2014 Annual Research Report
  • [Presentation] 白色雑音を用いたGap検知閾の測定2013

    • Author(s)
      相澤 直孝
    • Organizer
      日本耳鼻咽喉科学会総会ならびに学術講演会
    • Place of Presentation
      札幌市
    • Related Report
      2013 Research-status Report
  • [Presentation] 白色雑音を用いたGap検知閾の測定2013

    • Author(s)
      相澤 直孝
    • Organizer
      日本聴覚医学会 聴覚歪研究会
    • Place of Presentation
      東京都
    • Related Report
      2013 Research-status Report
  • [Presentation] 白色雑音を用いたGap検知閾の測定2013

    • Author(s)
      相澤直孝
    • Organizer
      第114回日本耳鼻咽喉科学会総会・学術講演会
    • Place of Presentation
      札幌市
    • Related Report
      2012 Research-status Report

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Published: 2011-08-05   Modified: 2019-07-29  

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