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Research on the Relationship among Contact Force, Finger Movements, and Reading Speed of Braille Readers and on Revising Braille Instruction Methods

Research Project

Project/Area Number 16091217
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionThe National Institute of Special Education

Principal Investigator

WATANABE Tetsuya  The National Institute of Special Education, Department for Educational Support Research, Senior Researcher (10342958)

Co-Investigator(Kenkyū-buntansha) OOUCHI Susumu  National Institute of Special Education, Department for Policy and Planning, Research Director (40321591)
Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥11,600,000 (Direct Cost: ¥11,600,000)
Fiscal Year 2006: ¥4,300,000 (Direct Cost: ¥4,300,000)
Fiscal Year 2005: ¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 2004: ¥3,500,000 (Direct Cost: ¥3,500,000)
KeywordsBlind Person / Braille / Contact Pressure / Reading Speed / Finger Movement / 6-Axis Force Sensor / Braille Instruction Method / 単語親密度 / 感圧導電性インク / 触読 / 運指 / 指導法
Research Abstract

The purpose of our study is (1) to investigate the relation among contact pressure (contact force), finger movements, and the reading skill of braille (reading speed) and (2) to revise braille instruction methods based on above-mentioned experimental results.
In 2004, we introduced a pressure measurement system using pressure sensitive conductive ink. From 2004 to early 2005, we performed experiments using this system with skilled braille readers as subjects and observed (1) small but frequent variance of contact pressure within one line and (2) reduced pressure during the sweeps from the end of one line to the beginning of the next line.
However, periodic calibration over weeks showed their instability behaviors so that we cannot be confident enough in these quantitative data.
To obtain trustworthy pressure data, we adopted an optical 6-axis force-torque sensor in late 2005. Two calibrations over one month proved high accuracy and time stability of the new system.
By using this system, we carried out a series of experiments with thirty-two braille users as subjects. Quantitative data demonstrate that unskilled readers show fluctuating but light contact force whereas that of skilled readers are comparatively strong and varies greatly from person to person; these observations are incompatible with the proposition by preceding studies. We analyzed the relationship among braille reading speed, contact force, tactile movements, and attributes of the subjects thoroughly and found that braille reading speed is related to the age when braille was learned and the frequency of braille usage but not to tactile movements.
Our future work is to revise braille instruction methods based on these new findings to reduce cognitive workload of braille learners.

Report

(4 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (20 results)

All 2007 2006 2005

All Journal Article (20 results)

  • [Journal Article] 点字触読時の接触力測定方法の確立とその応用-接触力と点字触読速度の関係-2007

    • Author(s)
      渡辺哲也, 大内進, 金子健, 山口俊光, 島田茂伸, 下条誠
    • Journal Title

      電子情報通信学会論文誌D Vol. J90-D, No. 3

      Pages: 253-267

    • NAID

      110007385871

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 点字触読時の接触力測定方法の確立とその応用-接触力と点字触読速度の関係-2007

    • Author(s)
      渡辺哲也, 大内進, 金子健, 山口俊光, 島田茂伸, 下条誠
    • Journal Title

      電子情報通信学会論文誌D Vol.J90-D, No.3

      Pages: 253-267

    • NAID

      110007385871

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Development of a Measuring System of Contact Force during Braille Reading Using an Optical 6-Axis Force Sensor2006

    • Author(s)
      Tetsuya Watanabe, Susumu Oouchi, Toshimitsu Yamaguchi, Makoto Shimojo, Shigenobu Shimada
    • Journal Title

      IEEE 2006 International Conference of the Engineering in Medicine and Biology Society

      Pages: 4936-4940

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Practical Use of the Interactive Tactile Display System at a School for the Blind2006

    • Author(s)
      Tetsuya Watanabe, Makoto Kobayashi, Shoichiro Ono, Keiko Yokoyama
    • Journal Title

      Current Developments in Technology-Assisted Education (2006), A. Mendez-Vilas, A. Solano Martin, J. Mesa Gonzalez, and J. A. Mesa Gonzalez Ed, FORMATEX、pp., Badajoz, Spain 2

      Pages: 1111-1115

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 点字触読速度・接触力・触運動と触読者の属性との関係2006

    • Author(s)
      渡辺哲也, 大内進, 金子健, 山口俊光, 下条誠, 島田茂伸
    • Journal Title

      電子情報通信学会技術報告 Vol. 106, No. 612

      Pages: 67-72

    • NAID

      110006249179

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 点字触読時の接触カー読みが速いと軽く, 遅いと強いのか? -2006

    • Author(s)
      渡辺哲也, 大内進, 金子健, 山口俊光, 下条誠, 島田茂伸
    • Journal Title

      ヒューマンインタフェースシンポジウム2006論文集

      Pages: 649-654

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Development of a Measuring System of Contact Force during Braille Reading Using an Optical 6 - Axis Force Sensor2006

    • Author(s)
      Tetsuya Watanabe, Susumu Oouchi, Toshimitsu Yamaguchi, Makoto Shimojo, Shigenobu Shimada
    • Journal Title

      IEEE 2006 International Conference of the Engineering in Medicine and Biology Society

      Pages: 4936-4940

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Practical Use of the Interactive Tactile Display System at a School for the Blind2006

    • Author(s)
      Tetsuya Watanabe, Motoko Kobayashi, Shoichiro Ono, Keiko Yokoyama
    • Journal Title

      Current Developments in Technology - Assisted Education, A. Mendez - Vilas, A. Solano Martin, J. Mesa Gonzalez, and J. A. Mesa Gonzalez Ed(Badajoz, Spain) (FORMATEX)

      Pages: 1111-1115

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Relationship among Braille Reading Speed, Contact Force, Tactile Movements and Attributes of the Braille Readers2006

    • Author(s)
      Tetsuya Watanabe, Susumu Oouchi, Toshimitsu Yamaguchi, Makoto Shimojo, Shigenobu Shimada
    • Journal Title

      Technical Report of Institute of Electronics, Information, and Communication Engineers Vol. 106, No. 612

      Pages: 67-72

    • NAID

      110006249179

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Contact Force during Braille Reading - The faster, the lighter? -2006

    • Author(s)
      Tetsuya Watanabe, Susumu Oouchi, Toshimitsu Yamaguchi, Makoto Shimojo, Shigenobu Shimada
    • Journal Title

      Proceedings of Human Interface Symposium 2006

      Pages: 649-654

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Practical Use of the Interactive Tactile Display System at a School for theBlind2006

    • Author(s)
      Tetsuya Watanabe, Makoto Kobayashi, Shoichiro Ono, Keiko Yokoyama
    • Journal Title

      Current Developments in Technology-Assisted Education (2006) (A. Mendez-Vilas, A. Solano Martin, J. Mesa Gonzalez, and J.A. Mesa Gonzalez Ed) (FORMATEX, Badajoz, Spain) 2

      Pages: 1111-1115

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 点字触読速度・接触力・触運動と触読者の属性との関係2006

    • Author(s)
      渡辺哲也, 大内進, 金子健, 山口俊光, 下条誠, 島田茂伸
    • Journal Title

      電子情報通信学会技術報告 Vol.106, No.612

      Pages: 67-72

    • NAID

      110006249179

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 点字触読時の接触力-読みが速いと軽く,遅いと強いのか?-2006

    • Author(s)
      渡辺哲也, 大内進, 金子健, 山口俊光, 下条誠, 島田茂伸
    • Journal Title

      ヒューマンインタフェースシンポジウム2006論文集

      Pages: 649-654

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 6軸力センサを用いた点字読み時の触圧測定の試み2006

    • Author(s)
      渡辺哲也, 大内進, 金子健, 山口俊光, 下条誠, 島田茂伸
    • Journal Title

      電子情報通信学会技術報告 Vol.106, No.57

      Pages: 33-40

    • NAID

      10018153598

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 点字読み速度と触圧の関係について面圧力分布測定システムを使った点字読みの触圧測定2005

    • Author(s)
      渡辺哲也, 大内進, 金子健, 山口俊光, 下条誠, 島田茂伸
    • Journal Title

      電子情報通信学会技術報告 Vol. 105, No. 479

      Pages: 69-74

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Establishment of a Method of Measuring Contact Force during Braille Reading and its Application - Relationship between Contact Force and Reading Speed2005

    • Author(s)
      Tetsuya Watanabe, Susumu Oouchi, Toshimitsu Yamaguchi, Shigenobu Shimada, Makoto Shimojo
    • Journal Title

      Journal of Institute of Electronics, Information, and Communication Engineers Vol. J88-D-I, No. 4

      Pages: 891-899

    • NAID

      110007385871

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Relation between Speed and Pressure during Braille Reading : Measurement of Pressure of Fingers using a Surface Pressure Measurement System2005

    • Author(s)
      Tetsuya Watanabe, Susumu Oouchi, Toshimitsu Yamaguchi, Makoto Shimojo, Shigenobu Shimada
    • Journal Title

      Technical Report of Institute of Electronics, Information, and Communication Engineers Vol. 105, No. 479

      Pages: 69-74

    • NAID

      110003488657

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 点字読み速度と触圧の関係について-面圧力分布測定システムを使った触圧の測定-2005

    • Author(s)
      渡辺哲也
    • Journal Title

      電子情報通信学会技術研究報告 105巻479号

      Pages: 69-74

    • NAID

      110003488657

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 面圧力分布測定システムを使った点字読みの触圧測定2005

    • Author(s)
      渡辺哲也
    • Journal Title

      電子情報通信学会技術研究報告 105巻186号

      Pages: 51-56

    • NAID

      110003224477

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 点字の触読に関する文献研究と新しい触圧測定装置の導入2005

    • Author(s)
      渡辺 哲也, 大内 進
    • Journal Title

      障害者・高齢者のコミュニケーション機能に関する基礎的研究2004年度第1回成果報告会資料

      Pages: 39-44

    • Related Report
      2004 Annual Research Report

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Published: 2004-04-01   Modified: 2018-03-28  

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