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

The neural circuit for the sound localization

Research Project

Project/Area Number 24500459
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Neurophysiology and muscle physiology
Research InstitutionKyoto University

Principal Investigator

FUKUI Iwao  京都大学, 医学(系)研究科(研究院), 准教授 (90362532)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords神経回路 / 下丘 / 音情報処理 / 聴覚 / 音源定位 / 両耳間時間時差 / ニューロン / 両耳間時間差 / シナプス
Outline of Final Research Achievements

The neural activities for the sounds with interaural time differences and interaural level differences were recorded in the inferior colliculus (IC) of chicken. There were various space coding neurons and I found that the integration were occurred among the different characteristic frequencies in IC. Furthermore, there was non-space coding neurons. These neurons were activated or inhibited by the various sound frequencies in the complex manner and seems to code the sound quality. Furthermore, I found that the characteristic frequencies that project to the NL (nucleus laminaris) neuron was different between the ipsilateral side and contralateral side. These differences in characteristic frequency enable to make the 0 us best ITD and the wide range distribution of best ITDs in NL neurons. The interaural time difference was calculated not only by the delay line but also the delay in the cochlear.

Report

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

    (4 results)

All 2013 2012

All Presentation (4 results)

  • [Presentation] 音源定位の神経回路と計算機シュミレーション2013

    • Author(s)
      福井巌・大森治紀
    • Organizer
      日本神経科学学会
    • Place of Presentation
      国立京都国際会館
    • Related Report
      2013 Research-status Report
  • [Presentation] 時間差の検出と計算機シュミレーション2013

    • Author(s)
      福井巌・大森治紀
    • Organizer
      日本生理学会大会
    • Place of Presentation
      東京
    • Related Report
      2012 Research-status Report
  • [Presentation] ニワトリ下丘の音源地図~音圧差情報と時間差情報2012

    • Author(s)
      福井巌・大森治紀
    • Organizer
      日本神経科学学会大会
    • Place of Presentation
      名古屋
    • Related Report
      2012 Research-status Report
  • [Presentation] Responses to the binaural sound cues in the MLd of chicken – interaural time and level differences –2012

    • Author(s)
      福井巌・大森治紀
    • Organizer
      北米神経科学学会大会 Neuroscience 2012
    • Place of Presentation
      ニューオリンズ
    • Related Report
      2012 Research-status Report

URL: 

Published: 2013-05-31   Modified: 2019-07-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi