Preliminary Investigation of the Optimal Size on Tactile Pictogram for Visually Impaired Persons

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Other Title
  • 中途視覚障害者の移動支援に役立つ触知ピクトグラムの最適サイズの予備的検討

Description

The purpose of this study was to investigate the optimal size of tactile pictograms for visually impaired persons. Thirty blindfolded subjects actively touched haptic stimuli from embossed Japanese Industrial Standard (JIS) - type pictograms of five sizes (30 mm2, 60 mm2, 90 mm2, 120 mm2, and 150 mm2). <br>We assessed the haptic performance (percentage of correct answers, reaction time, complexity, incomprehensiveness, and confidence) and examined the association between haptic performance and cognitive functions (intelligence and visual memory). Our results showed that haptic performance on the 120 mm2 and 150 mm2 sizes outperformed those on the other sizes. However, we ascertained that the percentage of correct answers and reaction times on the 120 mm2 size were affected by visual memory. Thus, it appears that the optimal size for tactile pictograms for visually impaired persons is the size ranging from 120 mm2 to 150 mm2.

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Details 詳細情報について

  • CRID
    1390282680388113408
  • NII Article ID
    130005252767
  • DOI
    10.11247/jssdj.63.3_29
  • ISSN
    21865221
    09108173
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
    • KAKEN
  • Abstract License Flag
    Disallowed

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