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

Evolution of auditory time-window: a comparative study using ERP

Research Project

Project/Area Number 17K00202
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Cognitive science
Research InstitutionNiigata University

Principal Investigator

Itoh Kosuke  新潟大学, 脳研究所, 特任准教授 (30345516)

Co-Investigator(Kenkyū-buntansha) 酒多 穂波  新潟大学, 脳研究所, 特任助教 (50804548)
松田 将門  新潟大学, 医歯学総合病院, 副臨床検査技師長 (30838652)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords聴覚 / 進化 / 霊長類 / 音楽 / 言語 / 脳 / 事象関連電位
Outline of Final Research Achievements

Auditory information is integrated over time for obtaining neural representations of auditory events in the brain. The time window of integration is a critical parameter of auditory processing that determines how sounds are represented in the brain and in perception.
This project revealed that the time scale of auditory integration, as evidenced by non-invasively recorded scalp auditory evoked potentials (AEP), is elongated in humans as compared to monkeys. Longer time scales of integration would allow neural representations of complex auditory features that characterize speech and music.

Academic Significance and Societal Importance of the Research Achievements

言語や音楽といったヒト特有の脳機能が、なぜ、どのように進化したか、よく分かっていない。本研究は、この進化において、大脳の聴覚野が果たした役割を検討した。
物理的な音は連続的だが、言語や音楽は、音節な音符などの不連続な要素の連なりである。つまり、大脳の聴覚野は、連続的な音信号を、一定の時間幅で、不連続な意味要素に区切る役割を果たしている。この時間幅がどの程度の長さかによって、言語や音楽のあり方は、まったく変わったものになる・
本研究は、脳波によって人とサルの聴覚野の機能を比較することで、この時間幅がヒトで延長していることを示す、世界で初めての実験的証拠を得た。

Report

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

    (9 results)

All 2020 2019 2018 2017

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

  • [Journal Article] Evolutionary Elongation of the Time Window of Integration in Auditory Cortex: Macaque vs. Human Comparison of the Effects of Sound Duration on Auditory Evoked Potentials2019

    • Author(s)
      Itoh Kosuke、Nejime Masafumi、Konoike Naho、Nakamura Katsuki、Nakada Tsutomu
    • Journal Title

      Frontiers in Neuroscience

      Volume: 13 Pages: 1-1

    • DOI

      10.3389/fnins.2019.00630

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Auditory T-Complex Reveals Reduced Neural Activities in the Right Auditory Cortex in Musicians With Absolute Pitch2019

    • Author(s)
      Matsuda Masato、Igarashi Hironaka、Itoh Kosuke
    • Journal Title

      Frontiers in Neuroscience

      Volume: 13 Pages: 1-1

    • DOI

      10.3389/fnins.2019.00809

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Primate non-invasive EEG: a window into human brain evolution2020

    • Author(s)
      Kosuke Itoh
    • Organizer
      he 10th BRI International Symposium: Advanced Brain Imaging for the Future
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] コモンマーモセットにおける頭皮上聴覚誘発電位の無麻酔・無侵襲記録2019

    • Author(s)
      伊藤浩介, 岩沖晴彦 , 鴻池菜保 , 五十嵐博中, 中村克樹
    • Organizer
      第42回日本神経科学会大会 NEURO2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] コモンマーモセットにおける聴覚情報処理に関わる神経応答2019

    • Author(s)
      鴻池 菜保, 三輪 美樹, 伊藤 浩介, 中村 克樹
    • Organizer
      第42回日本神経科学会大会 NEURO2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] Evolutionary elongation of the time window of auditory cortical processing2018

    • Author(s)
      Kosuke Itoh
    • Organizer
      Post-Symposium of the 33rd Annual Meeting of the International Society for Psychophysics: Perception and the Brain
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 頭皮上脳波記録で探る聴覚皮質機能の進化2017

    • Author(s)
      伊藤浩介
    • Organizer
      第47回ホミニゼーション研究会「言語の生物学と進化」
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 聴覚機能の進化:ヒトとアカゲザルにおける無侵襲頭皮上聴覚誘発電位記録による検討2017

    • Author(s)
      藤浩介、禰占雅史、鴻池菜保、中村克樹、中田力
    • Organizer
      日本基礎心理学会第36回大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Musical chord change detection in the macaque monkey is hindered by insertion of silent gaps between chords: a scalp ERP study2017

    • Author(s)
      Itoh K, Nejime M, Konoike N, Nakamura K, Nakada T
    • Organizer
      Society for Neuroscience 47th Annual Meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi