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2004 Fiscal Year Final Research Report Summary

Change of Brain Blood Flow during Masticatory Movement and Bodily Movement

Research Project

Project/Area Number 14370648
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 補綴理工系歯学
Research InstitutionThe Nippon Dental University

Principal Investigator

SHIGA Hiroshi  The Nippon Dental University, School of Dentistry at Tokyo, Professor, 歯学部, 教授 (50226114)

Co-Investigator(Kenkyū-buntansha) KOBAYASHI Yoshinori  The Nippon Dental University, School of Dentistry at Tokyo, Professor, 歯学部, 教授 (20095102)
ARAKAWA Ichiro  The Nippon Dental University, School of Dentistry at Tokyo, Assistant Professor, 歯学部, 講師 (00277592)
YOKOYAMA Masaoki  The Nippon Dental University, School of Dentistry at Tokyo, Assistant Professor, 歯学部, 講師 (60312071)
Project Period (FY) 2002 – 2004
KeywordsMasticatory movement / Bodily movement / Brain blood flow / Near infrared spectroscopy
Research Abstract

The purpose of this experiment was to clarify the effect of masticatory movement and other bodily movements on the brain blood flow using NIRS (near infrared spectroscopy). First, the brain blood flow analyzing system able to evaluate both visually and quantitatively the changes in the brain blood flow related to masticatory movement and other bodily movements was developed. Second, healthy subjects were asked to perform masticatory movement, finger tapping movement and opening and closing of the hand movement for 30 seconds each. The brain blood flow increased for all movements and the amount of increase was the greatest for the masticatory movement, followed by the finger tapping movement and by the opening and closing of the hand movement. Third, health subjects were asked to chew chewing gum on their habitual and non-habitual chewing sides for 2 minute respectively. The amount of change in blood flow was significantly larger for the habitual chewing side than for the non-habitual chewing side. Fourth, the subjects were asked to chew the four types of gumi-jelly (5%, the order of 6.5%, 8%, and 9.5% gelatin) and the three types of gumi-jelly (sweet, common, bitter) on their habitual chewing side for 20 seconds. The amount of brain blood flow were the lowest for the 5% gelatin gumi-jelly and significantly increased in the order of 6.5%, 8%, and 9.5%. The amounts of brain blood flow were the highest for the common gumi-jelly and significantly decreased in the sweet and bitter gumi-jelly. From these results it was suggested that mastication activated brain activities and that the habitual chewing side had a stronger effect than the non-habitual chewing side and that hardness and taste of the food affected the increase and decrease in the amount of brain blood flow.

  • Research Products

    (18 results)

All 2005 2004 2003

All Journal Article (18 results)

  • [Journal Article] Effect of Posture while Chewing on Brain Blood Flow2005

    • Author(s)
      Yoshinori Kobayashi et al.
    • Journal Title

      Journal of Dental Research 84(Special Issue A)

      Pages: 3611

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 咀嚼時の脳内血流と姿勢との関係2005

    • Author(s)
      小林義典 他
    • Journal Title

      日本補綴歯科学会雑誌 49・113回特別

      Pages: 84

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 味の異なるグミゼリー咀嚼前後の脳内血流2005

    • Author(s)
      志賀 博 他
    • Journal Title

      日本補綴歯科学会雑誌 49・113回特別

      Pages: 122

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Effect of Posture while Chewing on Brain Blood Flow2005

    • Author(s)
      Yoshinori Kobayashi, Masaoki Yokoyama, Hiroshi Shiga, Shingo Ohuchi
    • Journal Title

      Journal of Dental Research (Special Issue A) 84

      Pages: 3611

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Relationship between Posture and Brain Blood Flow during Chewing2005

    • Author(s)
      Yoshinori Kobayashi, Shingo Ohuchi, Hiroshi Shiga, Mika Unno, Kazue Mizuuchi
    • Journal Title

      Journal of Japan Prosthodontic Society (Special Issue 113) 49

      Pages: 84

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Brain Blood Flow of Chewing Gumi-jelly with Different Flavor2005

    • Author(s)
      Hiroshi Shiga, Yoshinori Kobayashi, Ichiro Arakawa, Masaoki Yokoyama, Seiji Hirota
    • Journal Title

      Journal of Japan Prosthodontic Society (Special Issue 113) 49

      Pages: 122

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Relationship between Masticatory Movement and Brain Blood Flow2004

    • Author(s)
      Hiroshi Shiga et al.
    • Journal Title

      Journal of Dental Research 83(Special Issue A)

      Pages: 2480

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Relationship between Hardness of Food and Brain Blood Flow2004

    • Author(s)
      Hiroshi Shiga et al.
    • Journal Title

      52nd Annual Meeting of the Japanese Association for Dental Research, Program and Abstracts of Papers

      Pages: 104

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 咀嚼と脳血流,姿勢との関係2004

    • Author(s)
      小林義典 他
    • Journal Title

      第14回日本全身咬合学会学術大会プログラム抄録集

      Pages: 27

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 近赤外分光装置(NIR0300^R)による脳内血流分析システムの開発2004

    • Author(s)
      志賀 博 他
    • Journal Title

      日本顎口腔機能学会雑誌 11

      Pages: 7-13

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 近赤外分光装置によるチューインガム咀嚼時の脳内血流の変化2004

    • Author(s)
      志賀 博 他
    • Journal Title

      日本咀嚼学会雑誌 14

      Pages: 68-73

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Relationship between Masticatory Movement and Brain Blood Flow2004

    • Author(s)
      Hiroshi Shiga, Yoshinori Kobayashi, Yasuharu Shonai, Takuya Kuroki
    • Journal Title

      Journal of Dental Research (Special Issue A) 83

      Pages: 2480

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Relationship between Hardness of Food and Brain Blood Flow2004

    • Author(s)
      Hiroshi Shiga, Yoshinori Kobayashi, Ichiro Arakawa, Masaoki Yokoyama, Mika Unno
    • Journal Title

      52nd Annual Meeting of the Japanese Association for Dental Research, Program and Abstracts of Papers

      Pages: 104

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Mastication and Brain Blood Flow, In Relation with Body Positions2004

    • Author(s)
      Yoshinori Kobayashi, Hiroshi Shiga, Shingo Ohuchi, Ichiro Arakawa, Masaoki Yokoyama
    • Journal Title

      Proceedings of 14th Meeting of Japanese Academy of Occulusion and Health

      Pages: 27

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Development of brain blood flow analysis system using near infrared spectroscopy (NIRO300^<【O!R】>)2004

    • Author(s)
      Hiroshi Shiga, Yoshinori Kobayashi, Ichiro Arakawa, MasaokiYokoyama
    • Journal Title

      Journal of Japanese Society of Stomatognathic Function 11

      Pages: 7-13

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] The change of brain blood flow when chewing chewing-gum using NIRS2004

    • Author(s)
      Hiroshi Shiga, Yoshinori Kobayashi, Ichiro Arakawa, Masaoki Yokoyama
    • Journal Title

      Journal of Japanese Society for Mastication Science and Health Promotion 14

      Pages: 68-73

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] 近赤外分光装置NIR0300^Rによる脳内血流分析システムの開発2003

    • Author(s)
      志賀 博 他
    • Journal Title

      日本補綴歯科学会雑誌 47・109回特別

      Pages: 119

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Development of Analyzing System of Cerebral Blood Flow Using Near-Infrared Spectroscopy NIRO300^<【O!R】>2003

    • Author(s)
      Hiroshi Shiga, Yoshinori Kobayashi, Ichiro Arakawa, Masaoki Yokoyama
    • Journal Title

      Journal of Japan Prosthodontic Society (Special Issue 109) 47

      Pages: 119

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2007-12-13  

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