Discriminable dimensions of tactile raised dots in Braille graphics
| Project/Area Number |
26870863
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Experimental psychology
Rehabilitation science/Welfare engineering
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| Research Institution | Seikei University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | 視覚障害 / 点図 / 識別 / 触覚 / 点字プリンター / 視覚障害者 / 触図 / 弁別 / 弁別特性 / 凸点 / 高さ / 歩行訓練 / 視覚障害特性 / 心理物理 |
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| Outline of Final Research Achievements |
The purpose of this research was to clarify the conditions for distinguishing the height and the diameter of tactile dots of braille graphics used by persons with visual impairments. Results of psychophysical experiments revealed that the height discrimination threshold and the Weber fraction were clarified according to the changes in the tactile characteristic depending on the age and the tactile experience of persons with visual impairments. On the other hand, it was difficult to accurately discriminate the tactile dots just by changing the diameter. The data can serve as useful references for designing Braille printers.
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Report
(5 results)
Research Products
(4 results)
