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2005 Fiscal Year Final Research Report Summary

PHYSIOLOGICAL AND TECHNOLOGICAL STUDIES ON THE AUDITORY SCENE ANALYSYS

Research Project

Project/Area Number 15300057
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Perception information processing/Intelligent robotics
Research InstitutionToyohashi University of Technology

Principal Investigator

HORIKAWA Junsei  Toyohashi University of Technology, Knowledge-Based Information Engineering, Professor, 工学部, 教授 (50114781)

Co-Investigator(Kenkyū-buntansha) HOSOKAWA Yutaka  Ryukyu University, Medicine, Associate professor, 医学部, 助教授 (80181501)
Project Period (FY) 2003 – 2005
Keywordsauditory scene analysis / auditory induction / segmentation and grouping of sound / sound location / primary auditory cortex / auditory belt fields / guinea pig / optical imaging
Research Abstract

Human can recognize speeches even in noisy environments where noise masks speech sounds. This phenomenon is called 'cocktail party effect' or, by Bregman, 'auditory scene analysis' (1991). He suggested in his psychophysical studies that there are several auditory mechanisms underlying this effect such as temporal induction of sounds (restoration of original sounds in the periods masked by noise), segmentation, grouping and location of sounds. These mechanisms are not fully understood physiologically. The present study is aimed to investigate physiological mechanisms of auditory scene analysis in the auditory cortex and to make a neural model. Neural mechanisms of (1) temporal induction, (2) segmentation and grouping and (3) sound location were investigated in the guinea-pig auditory cortex using an optical imaging technique of neural activity and (4) a neural model of the auditory cortex and a noise-robust speech recognition model were studied. Responses to gap-inserted pure tone appea … More red at the onset of pre- and post-gap tone. The onset response to the post-gap tone was inhibited by insertion of noise, and this inhibition was stronger in the belt fields than in the AI. These results suggest that the inhibition of the onset detection after the noise is an important mechanism for auditory induction. The response in AI and the anterior belt field followed to the amplitude-modulated sounds (AM) at high modulation frequencies (fm) but the dorsocaudal field and the caudal belt field followed to AM at low fm, and the caudal belt field elicited the larger offset responses for the higher fm. These results show that the caudal belt fields have a longer time window to process sounds, suggesting that this field is more specialized to analyze complex sounds, and show that the offset response is involved in the sound-grouping mechanisms. The caudal belt fields were found to be more sensitive to the sound location than the AI. A neural model of the auditory cortex reproduced spatiotemporal neural activity of the AI. Less

  • Research Products

    (23 results)

All 2006 2005 2004 2003

All Journal Article (21 results) Book (2 results)

  • [Journal Article] Layer-specific short-term dynamics in network activity in the central cortex.2006

    • Author(s)
      Kubota, M., Hosokawa, Y., Horikawa, J.
    • Journal Title

      NeuroRep. (in press)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] a pitchi-synchronous peak-amplitude (PS-PA) based feature extraction method for noise-robust ASR.2006

    • Author(s)
      Ghulam, M., Katsurada, K., Horikawa, J., Nitta, T.
    • Journal Title

      IEICE Trans. Inf. & Syst. (in press)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] PS-ZCPA based feature extraction with auditory masking modulation enhancement and noise reduction for robust ASR.2006

    • Author(s)
      Ghulam, M, Fukuda, T., Katsurada, K., Horikawa, J., Nitta, T.
    • Journal Title

      IEICE Trans. Inf & Syst. E89-D

      Pages: 1015-1023

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Layer-specific short-term dynamics in network activity in the central cortex.2006

    • Author(s)
      Kubota, M., Hosakawa, Y., Horikawa, J.
    • Journal Title

      NeuroRep. (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] A pitch-synchronous peak-amplitude (PS-PA) based feature extraction method for noise-robust ASR2006

    • Author(s)
      Ghulam, M., Katsurada, K., Horikawa, J., Nitta, T.
    • Journal Title

      IEICE Trans.Inf.& Syst. (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Spatiotemporal processing in the guinea pig auditory cortex.2006

    • Author(s)
      Horikawa, J., Hess, A., Hosokawa, Y., Taniguchi, I.
    • Journal Title

      Behavior and Neurodynamics for Auditory Communications (Eds. J.S.Kanwal, G.Ehret) (Cambridge University Pres)

      Pages: 189-204

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] PS-ZCPA based feature extraction with auditory masking modulation enhancement and noise reduction for robust ASR.2006

    • Author(s)
      Ghulam, M, Fukuda, T., Katsurada, K., Horikawa, J., Nitta, T.
    • Journal Title

      IEICE Trans.Inf.& Syst. E89-D

      Pages: 1015-1023

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Spatio-temporal pattern of responses to pure tones and frequency modulated sounds in the guinea pig auditory cortex.2005

    • Author(s)
      Taniguchi, I., Sugimoto, S., Hess, A., Horikawa, J., Hosokawa, Y., Scheich, H.
    • Journal Title

      Auditory Cortex - Towards a Synthesis of Human and Animal Research (Lawrence Erlbaum Associates)

      Pages: 315-330

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Optical imaging of binaural interaction in multiple fields of the guinea pig auditory cortex.2004

    • Author(s)
      Hosokawa, Y., Sugimoto, S., Kubota, M., Taniguchi, I., Horikawa, J.
    • Journal Title

      NeuroRep. 15

      Pages: 1093-1097

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] A noise-robust feature extraction method based on pitch-synchronous ZCPA for ASR.2004

    • Author(s)
      Ghulam, M., Fukuda, T., Horikawa, J., Nitta, T.
    • Journal Title

      ICSLP Vol.I

      Pages: 133-136

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 音の補完に関わる聴覚皮質神経構造2004

    • Author(s)
      堀川順生, 宮本章弘, 遠藤祐介
    • Journal Title

      日本音響学会講演論文集 秋季 I

      Pages: 515-516

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] A pitch synchronous ZCPA(PS-ZCPA)-based feature extraction method with auditory masking effect.2004

    • Author(s)
      Ghulam, M., Horikawa, J., Nitta, T.
    • Journal Title

      日本音響学会講演論文集 秋季 I

      Pages: 65-66

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] A pitch synchronous auditory feature extraction method for robust ASR.2004

    • Author(s)
      Ghulam, M., Horikawa, J., Nitta, T.
    • Journal Title

      日本音響学会講演論文集 春季 I

      Pages: 149-150

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 頑健な音声認識のためのピッチ同期ZCPAに基づく特徴抽出法2004

    • Author(s)
      ムハマット グラム, 堀川順生, 新田恒雄
    • Journal Title

      信学技報 SP2004-12

      Pages: 13-18

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Neural mechanisms of temporal induction of sounds in the guinea-pig auditory cortex observed by an optical recording technique.2004

    • Author(s)
      Horikawa, J., Miyamoto, A., Endo, Y.
    • Journal Title

      Acust.Soc.Jpn.Autumun. I

      Pages: 515-516

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] The pitch synchronous ZCPA (PS-ZCPA)-based feature extraction method with auditory masking effect.2004

    • Author(s)
      Ghulam, M., Horikawa, J., Nitta, T.
    • Journal Title

      Acust.Soc.Jpn.Autumun. I

      Pages: 65-66

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] A pitch synchronous auditory feature extraction method for robust ASR.2004

    • Author(s)
      Ghulam, M., Horikawa, J., Nitta, T.
    • Journal Title

      Acust.Soc.Jpn.Soring. I

      Pages: 149-66150

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] A pitch-syncronous ZCPA-based feature extraction method for robust ASR.2004

    • Author(s)
      Ghulam, M., Horikawa, J., Nitta, T.
    • Journal Title

      IEICE SP2004-12

      Pages: 13-18

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] 聴覚皮質の生理学的研究の動向2003

    • Author(s)
      堀川順生
    • Journal Title

      信学技報 TL2003-19

      Pages: 19-24

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] A pitch-synchronous auditory-based feature extraction method for robust ASR.2003

    • Author(s)
      Ghulam, M., Fukuda, T., Katsurada, K., Horikawa, J., Nitta, T.
    • Journal Title

      IEICE Trans. Inf. & Syst. E86-A

      Pages: 1-8

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Recent progress in the studies of physiological mechanisms of auditory cortex.2003

    • Author(s)
      Horikawa, J.
    • Journal Title

      IEICE TL2003-19

      Pages: 19-24

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] Spatiotemporal processing in the guinea pig auditory cortex. In Eds. J.S. Kanwal and G. Ehret "Behavior and Neurodynamics for Auditory Communication"2006

    • Author(s)
      Horikawa, J., Hess, A., Hosokawa, Y., Taniguchi, I.
    • Total Pages
      361
    • Publisher
      Cambridge University Press
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] Spatio-temporal pattern of responses to pure tones and frequency modulated sounds in the guinea pig auditory cortex. In "Auditory Cortex - Towards a Synthesis of Human and Animal Research"2005

    • Author(s)
      Taniguchi, I., Sugimoto, S., Hess, A., Horikawa, J., Hosokawa, Y., Scheich, H.
    • Total Pages
      600
    • Publisher
      Lawrence Erlbaum Associates
    • Description
      「研究成果報告書概要(和文)」より

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Published: 2007-12-13  

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