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Investigations of perceptual quality determinants in broadband sounds and its decoding mechanisms in the brain

Research Project

Project/Area Number 17K13964
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Experimental psychology
Research InstitutionKumamoto University

Principal Investigator

Nishimura Masataka  熊本大学, 大学院生命科学研究部(医), 助教 (80613398)

Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords時間 / タイミング / オペラント条件付 / 精度 / 音声知覚 / 行動実験 / 計算実験 / 時間精度 / デコーディング / 精度柔軟性 / 音の質感 / 実験系心理学 / 感覚 / 知覚 / 感性
Outline of Final Research Achievements

The only way to read out the perception in our brain is observations of reactions evoked by the perception, such as motor activities corresponding to the perception. To facilitate the investigations of perceptual quality determinants in broadband sounds and its decoding mechanisms in the brain, it was necessary to establish the behavioural method which enables the observer to precisely read out the animal’s perception. To this end, we developed a task system which can precisely measure animal’s action times with 0.1 ms precision and established a novel behavioural task to encourage animals to perform actions at the suitable timings corresponding to the sensory cues. The behavioural results, unexpectedly, demonstrated that dynamic changes in the timing precision during the task in guinea pigs. This novel finding has been reported as a research article in the peer-reviewed international journal, Scientific Reports.

Academic Significance and Societal Importance of the Research Achievements

我々ヒトにとって、運動のタイミング精度が静的なものでなく動的なもの(集中や注意のレベルで変化するもの)であることは経験的に感じていることである。タイミング精度を変化・向上させるためのメカニズムはいくつか考えうるものの、我々の脳がいずれのメカニズムでタイミング精度を変化させるのかは現時点で不明である。
本研究の当初の目的とは異なる知見ではあるものの、動的なタイミング精度の変化・向上が実験動物であるモルモットでも見られることが明らかになったことで、動物の脳の中で何が起きてタイミング精度が変化するのかを生理学的実験によって明らかにしていくための基盤が構築できたと言える。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (8 results)

All 2021 2020 2019 2018 2017

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (5 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Postnatal development of subfields in the core region of the mouse auditory cortex2021

    • Author(s)
      Feian Chen, Makoto Takemoto, Masataka Nishimura, Ryohei Tomioka, Wen-Jie Song
    • Journal Title

      Hearing Research

      Volume: 400 Pages: 108138-108138

    • DOI

      10.1016/j.heares.2020.108138

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dynamic changes of timing precision in timed actions during a behavioural task in guinea pigs2020

    • Author(s)
      Nishimura Masataka、Wang Chi、Shu Reika、Song Wen-Jie
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 20079-20079

    • DOI

      10.1038/s41598-020-76953-y

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Organization of auditory areas in the superior temporal gyrus of marmoset monkeys revealed by real-time optical imaging2017

    • Author(s)
      Nishimura Masataka, Takemoto Makoto, Song Wen-Jie
    • Journal Title

      Brain Structure and Function

      Volume: 223(4) Issue: 4 Pages: 1599-1614

    • DOI

      10.1007/s00429-017-1574-0

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 適応的条件付パラメータによる動物音声知覚の高精度復号の実現2019

    • Author(s)
      西村方孝, 宋文杰
    • Organizer
      2019年6月度 聴覚研究会 ASJ-H
    • Related Report
      2019 Research-status Report
  • [Presentation] A Newly-Developed Timing Production Task For Guinea Pigs To Mimic Decodable Quick Actions of Human2019

    • Author(s)
      Masataka Nishimura, Chi Wang, Yuta Shiromi, Wen-Jie Song
    • Organizer
      ARO 42nd Annual MidWinter Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Serveral-minute lasting extreme precision observed in a sub-second timing production task in guinea pigs2018

    • Author(s)
      Chi Wang, Yuta Shiromi, Wen-Jie Song, Masataka Nishimura
    • Organizer
      Neuroscience 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Serveral-minute lasting extreme precision observed in a sub-second timing production task in guinea pigs2018

    • Author(s)
      Wang Chi, Yuta Shiromi, Wen-Jie Song, Masataka Nishimura
    • Organizer
      Neuroscience2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Impacts of Millisecond-order Onset Timing Difference of High Frequency Component in Spectrally Complex Sounds on Cortrical Activity and Sensation2017

    • Author(s)
      Masataka Nishimura, Wen-Jie Song
    • Organizer
      ARO 2017 MidWinter Meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2022-01-27  

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