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

Development of infants' communication and expression of emotion through vocalization.

Research Project

Project/Area Number 05808033
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Intelligent informatics
Research InstitutionSaitama University

Principal Investigator

SHIMIZU Yoko  Saitama University, Department of Education Associate Professor, 教育学部, 助教授 (60134326)

Co-Investigator(Kenkyū-buntansha) IMAIZUMI Satoshi  University of Tokyo, Faculty of Medicine, RILP,Associate Professor, 医学部・音声言語医学研究施設, 助教授 (80122018)
Project Period (FY) 1993 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1994: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1993: ¥1,300,000 (Direct Cost: ¥1,300,000)
Keywordsinfant / vocalization / communication / emotion / listener dependency / context dependency / acoustic characteristics / 個人差 / コンテキスト
Research Abstract

Infants' ability to express emotin through vocalizations is studied through perceptual rating experiments for voice samples recorded from ten infants at 2,6,9,12 and 17 months of age. Listening subjects were four groups with normal hearing, i.e., students, mothers, care takers, and children. Following results were obtained.
(1) The context dependency was different among the listener groups. The students biased their scores depending on the contexts without significant changes in inter-relationships between the rating scales. On the other hand, the mothers changed inter-relationships between the rating scales depending on the contexts. The mothers seemed to change perceptual weights, based on which they would hear a specific aspect of emotion, rather than simply biasing the rating scores under a certain context. Perception of emotion seemed being influenced by differences in listeners' child-rearing experiences. (2) Both the adult and child listeners perceived rich contents of emotions from the voice samples recorded even at 6 month of age. More factors were extracted from the rating scores given by the children than by the adults via factor analyzes. Children are more sensitive in perception of emotions from infants' vocalization than the adults. Children seem to perceive richer emotions from infants'vocalizations than the adults. (3) By a factor analysis for 200 voice samples recorded at 2 months of age, three factors representing emotional contrast of pleased vs. frightened, calm vs. surprising, and speaking vs. singing were extracted. Acoustical analyzes showed that these perceptual factors significantly correlate with the acoustical parameters such as F0 range, F0 variation type, F0 minimum, F0 maximum, vocalization length, and the number of segments.
These results suggest that infants even at 2 months of age can produce vocal elements necessary to express emotional contrasts that are identifiable for adult listeners.

Report

(3 results)
  • 1994 Annual Research Report   Final Research Report Summary
  • 1993 Annual Research Report
  • Research Products

    (26 results)

All Other

All Publications (26 results)

  • [Publications] 志村洋子、今泉敏、坂和真由美: "初期乳児期の音声における感性情報" 信学技報. 発表予定. (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 志村洋子、今泉敏: "Infant's Expression and Perception of Emotion through Vocalizations." Intrnational Conference on Spoken Language Processing.Proccding. Vol.4. 1703-1706 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 志村洋子、今泉敏: "初期乳児期の音声における感性情報" 信学技報. HC94-38. 9-16 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 志村洋子、今泉敏: "乳児音声における感性情報表出の発達と個人差の検討" 音声言語医学. Vol.35 No.2. 207-212 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 今泉敏、他: "Evaluation of vocal controllability by an object oriented acoustic analysis system" J.acoust.Soc.Jpn.(E). Vol.15 No.2. 113-116 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 志村洋子、今泉敏: "乳児音声の感性情報認知における聴取者・状況依存性" 音声言語医学. Vol.34 No.4. 417-424 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 志村洋子: "赤ちゃんとの話し方" ごま書房, 212 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Yoko Shimura, Satoshi Imaizumi: "Kansei information in vocalizations by 2 month old infantas : perceptual and acoustical characteristics." Technical Report of IEICE. (in press). (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Yoko Shimura, Satoshi Imaizumi: "Infant's expression and perception of emotion through vocalizations" International Conference on Spoken Language Processing. Proceeding. 1703-1706 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Yoko Shimura, Satoshi Imaizumi: ""Kansei" information in young infants' vocalizations" Technical Report of IEICE. HC94-38. 9-16 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Yoko Shimura, Satoshi Imaizumi: "Individual differences in infant development of emotion expression through vocalization" The Japan Journal of Logopedics and Phoniatrics. 35-2. 207-212 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Yoko Shimura, Satoshi Imaizumi: "Listener and context effects in perception of emotional aspects of infants' vocalization" The Japan Journal of Logopedics and Phoniatrics. 34-4. 417-424 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 志村洋子、今泉敏: "Infant's Expression and Perception of Emotion through Vocalizations." Intrnational Conference on Spoken Language Processing.Proccding. Vol.4. 1703〜1706 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 志村洋子、今泉敏: "初期乳児期の音声における感性情報" 信学技報. HC94-38. 9〜16 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 志村洋子、今泉敏: "乳児音声における 感性情報表出の発達と個人差の検討" 音声言語医学. Vol.35 No.2. 207〜212 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 志村洋子、今泉敏: "乳児音声の感性情報認知における聴取者・状況依存性" 音声言語医学. Vol.34 No.4. 417〜424 (1993)

    • Related Report
      1994 Annual Research Report
  • [Publications] 今泉敏、他: "Evaluation of vocal controllability by an object oriented acoustic analysis system" J.acoust.Soc.Jpn.(E). Vol.15 No.2. 113〜116 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 志村洋子: "発達初期段階における歌唱行動についての一考察" 音楽教育学. 第22-2号 別冊. 75〜79 (1993)

    • Related Report
      1994 Annual Research Report
  • [Publications] 志村洋子: "赤ちゃんとの話し方" ごま書房, 212 (1993)

    • Related Report
      1994 Annual Research Report
  • [Publications] 志村洋子: "発達初期段階における歌唱行動についての一考察" 音楽教育学. 22-2. 75-79 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 志村洋子、今泉敏: "乳児音声の感性情報認知における聴取者・状況依存性" 音声言語医学. 34-4. 417-424 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 志村洋子、今泉敏: "乳児音声における感性情報表出の発達と個人差の検討" 音声言語医学. 印刷中.

    • Related Report
      1993 Annual Research Report
  • [Publications] S.Imaizumi,et al.: "Acoustic Characteristics of Vibrato:Harmonic Analysis of the Singing Voice" Proc.SMAC93. (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] S.Imaizumi,et al.: "Evaluation of Vocal Controolability by an Object Oriented Acoustic Analysis System" J.Acoust.Soc.Jpn(E). 15-2. 113-116 (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] 今泉敏、他: "音響分析による声の可制御性の評価-遅いゆらぎの特性について" 信学技報. SP93-63. 47-52 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 志村洋子: "赤ちゃんとの話し方" ごま書房, 212 (1993)

    • Related Report
      1993 Annual Research Report

URL: 

Published: 1993-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi