Evaluation of effect of tactile alphabet size on identification for people without rich tactile experiences and verification of aging effect

Tactile characters aid in providing information to visually impaired persons. The Japanese Standards Association enacted basic design methods for embossed tactile patterns in March 2011. However, data on the appropriate size of tactile alphabets are not necessarily enough available. The purpose of t...

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Main Authors: Kouki DOI, Yuki KAIHATSU, Wataru TOYODA, Takahiro NISHIMURA, Hiroshi FUJIMOTO
Format: Article
Language:Japanese
Published: The Japan Society of Mechanical Engineers 2017-05-01
Series:Nihon Kikai Gakkai ronbunshu
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/transjsme/83/850/83_16-00470/_pdf/-char/en
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author Kouki DOI
Yuki KAIHATSU
Wataru TOYODA
Takahiro NISHIMURA
Hiroshi FUJIMOTO
author_facet Kouki DOI
Yuki KAIHATSU
Wataru TOYODA
Takahiro NISHIMURA
Hiroshi FUJIMOTO
author_sort Kouki DOI
collection DOAJ
description Tactile characters aid in providing information to visually impaired persons. The Japanese Standards Association enacted basic design methods for embossed tactile patterns in March 2011. However, data on the appropriate size of tactile alphabets are not necessarily enough available. The purpose of this study was to evaluate the influence of the size of a tactile alphabet on identification and to investigate the perceptible size for people without rich tactile experiences. The participants of this study were 15 young people and 15 old people who were unfamiliar with tactile characters intended for visually impaired people. They were asked to discriminate tactile alphabets of six different sizes by using their forefingers without the aid of eyesight. The results showed that the younger and older participants were able to discriminate the presented stimuli faster and more accurately as the stimulus size was increased. Concretely, when the size was 28 mm, each participants regardless of young or older groups could identify the tactile character accurately and quickly. In addition, a trend was seen in that the older group needed larger tactile alphabet sizes than the younger group. We determined the relationship between the tactile alphabet size and discrimination ability of younger and older people without rich tactile experiences.
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spelling doaj.art-8766ca42dde44b74846c5506fb03267e2022-12-22T02:47:26ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612017-05-018385016-0047016-0047010.1299/transjsme.16-00470transjsmeEvaluation of effect of tactile alphabet size on identification for people without rich tactile experiences and verification of aging effectKouki DOI0Yuki KAIHATSU1Wataru TOYODA2Takahiro NISHIMURA3Hiroshi FUJIMOTO4Department of Policy and Planning, National Institute of Special Needs EducationGraduate School of Human Sciences, Waseda UniversityFaculty of Science and Technology, Seikei UniversityDepartment of Policy and Planning, National Institute of Special Needs EducationFuculty of Human Sciences, Waseda UniversityTactile characters aid in providing information to visually impaired persons. The Japanese Standards Association enacted basic design methods for embossed tactile patterns in March 2011. However, data on the appropriate size of tactile alphabets are not necessarily enough available. The purpose of this study was to evaluate the influence of the size of a tactile alphabet on identification and to investigate the perceptible size for people without rich tactile experiences. The participants of this study were 15 young people and 15 old people who were unfamiliar with tactile characters intended for visually impaired people. They were asked to discriminate tactile alphabets of six different sizes by using their forefingers without the aid of eyesight. The results showed that the younger and older participants were able to discriminate the presented stimuli faster and more accurately as the stimulus size was increased. Concretely, when the size was 28 mm, each participants regardless of young or older groups could identify the tactile character accurately and quickly. In addition, a trend was seen in that the older group needed larger tactile alphabet sizes than the younger group. We determined the relationship between the tactile alphabet size and discrimination ability of younger and older people without rich tactile experiences.https://www.jstage.jst.go.jp/article/transjsme/83/850/83_16-00470/_pdf/-char/entactile charactertactile alphabetaccessible designdiscriminabilitytactile perception
spellingShingle Kouki DOI
Yuki KAIHATSU
Wataru TOYODA
Takahiro NISHIMURA
Hiroshi FUJIMOTO
Evaluation of effect of tactile alphabet size on identification for people without rich tactile experiences and verification of aging effect
Nihon Kikai Gakkai ronbunshu
tactile character
tactile alphabet
accessible design
discriminability
tactile perception
title Evaluation of effect of tactile alphabet size on identification for people without rich tactile experiences and verification of aging effect
title_full Evaluation of effect of tactile alphabet size on identification for people without rich tactile experiences and verification of aging effect
title_fullStr Evaluation of effect of tactile alphabet size on identification for people without rich tactile experiences and verification of aging effect
title_full_unstemmed Evaluation of effect of tactile alphabet size on identification for people without rich tactile experiences and verification of aging effect
title_short Evaluation of effect of tactile alphabet size on identification for people without rich tactile experiences and verification of aging effect
title_sort evaluation of effect of tactile alphabet size on identification for people without rich tactile experiences and verification of aging effect
topic tactile character
tactile alphabet
accessible design
discriminability
tactile perception
url https://www.jstage.jst.go.jp/article/transjsme/83/850/83_16-00470/_pdf/-char/en
work_keys_str_mv AT koukidoi evaluationofeffectoftactilealphabetsizeonidentificationforpeoplewithoutrichtactileexperiencesandverificationofagingeffect
AT yukikaihatsu evaluationofeffectoftactilealphabetsizeonidentificationforpeoplewithoutrichtactileexperiencesandverificationofagingeffect
AT watarutoyoda evaluationofeffectoftactilealphabetsizeonidentificationforpeoplewithoutrichtactileexperiencesandverificationofagingeffect
AT takahironishimura evaluationofeffectoftactilealphabetsizeonidentificationforpeoplewithoutrichtactileexperiencesandverificationofagingeffect
AT hiroshifujimoto evaluationofeffectoftactilealphabetsizeonidentificationforpeoplewithoutrichtactileexperiencesandverificationofagingeffect