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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

盲文阅读器接触力、手指动作与阅读速度关系的研究及盲文教学方法的修订

基本信息

批准号：
16091217
负责人：
WATANABE Tetsuya
金额：
$ 7.42万
依托单位：
The National Institute of Special Education
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research on Priority Areas
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2006
项目状态：
已结题

项目摘要

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.

本研究的目的是（1）探讨接触压力（接触力）、手指运动与盲文阅读技能（阅读速度）之间的关系;（2）根据上述实验结果修正盲文教学方法。从2004年到2005年初，我们使用该系统进行了实验，熟练的盲文读者作为受试者，观察到（1）一行内接触压力的小但频繁的变化，（2）从一行结束到下一行开始的扫描期间压力降低。几周的周期性校准显示了它们的不稳定行为，使得我们不能对这些定量数据足够自信。为了获得可靠的压力数据，我们在2005年底采用了光学6轴力-扭矩传感器。经过一个多月的两次标定，证明该系统具有较高的准确度和时间稳定性。定量数据表明，不熟练的阅片者显示出波动但轻微的接触力，而熟练的阅片者的接触力相对较强，并且因人而异;这些观察结果与先前研究的主张不一致。我们深入分析了盲文阅读速度、接触力、触觉动作和受试者属性之间的关系，发现盲文阅读速度与学习盲文的年龄和使用盲文的频率有关，而与触觉动作无关。

项目成果

期刊论文数量（40）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Practical Use of the Interactive Tactile Display System at a School for theBlind

互动触觉显示系统在盲人学校的实际应用

DOI：
发表时间：
2006
期刊：
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
影响因子：
0
作者：
Tetsuya Watanabe;Makoto Kobayashi;Shoichiro Ono;Keiko Yokoyama
通讯作者：
Keiko Yokoyama

Development of a Measuring System of Contact Force during Braille Reading Using an Optical 6-Axis Force Sensor

使用光学六轴力传感器开发盲文阅读过程中接触力测量系统

DOI：
发表时间：
2006
期刊：
IEEE 2006 International Conference of the Engineering in Medicine and Biology Society
影响因子：
0
作者：
Tetsuya Watanabe;Susumu Oouchi;Toshimitsu Yamaguchi;Makoto Shimojo;Shigenobu Shimada
通讯作者：
Shigenobu Shimada

Relationship among Braille Reading Speed, Contact Force, Tactile Movements and Attributes of the Braille Readers

盲文阅读者盲文阅读速度、接触力、触觉运动与属性之间的关系

DOI：
发表时间：
2006
期刊：
Technical Report of Institute of Electronics, Information, and Communication Engineers Vol. 106, No. 612
影响因子：
0
作者：
Tetsuya Watanabe;Susumu Oouchi;Toshimitsu Yamaguchi;Makoto Shimojo;Shigenobu Shimada
通讯作者：
Shigenobu Shimada

点字触読速度・接触力・触運動と触読者の属性との関係

盲文触觉阅读速度、接触力、触觉运动与触觉阅读器属性之间的关系

DOI：
发表时间：
2006
期刊：
電子情報通信学会技術報告 Vol. 106, No. 612
影响因子：
0
作者：
渡辺哲也;大内進;金子健;山口俊光;下条誠;島田茂伸
通讯作者：
島田茂伸

Development of a Measuring System of Contact Force during Braille Reading Using an Optical 6 - Axis Force Sensor

使用光学六轴力传感器开发盲文阅读过程中接触力测量系统

DOI：
发表时间：
2006
期刊：
IEEE 2006 International Conference of the Engineering in Medicine and Biology Society
影响因子：
0
作者：
Tetsuya Watanabe;Susumu Oouchi;Toshimitsu Yamaguchi;Makoto Shimojo;Shigenobu Shimada
通讯作者：
Shigenobu Shimada