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The Effects of Realism, Color, and Type of Content on Identification of Graphic Symbol

  • Journal of Special Education: Theory and Practice
  • Abbr : JSPED
  • 2010, 11(2), pp.387-399
  • Publisher : Research Institute of the Korea Special Education
  • Research Area : Social Science > Education

Choi, Yang-Gyu 1 Song Ki Bum 1

1대구대학교

Accredited

ABSTRACT

The purpose of this study was to examine the effects of realism, color, and type of content of graphic symbols on target pointing in communication boards. For such purpose, the experiment was performed for measuring and evaluating the reaction time and accuracy of target symbol identification. 29 adults participated in the experiment. As experimental materials, 117 symbols were selected from PMLS symbols. The symbols consisted of 3 level realism(line-drawing vs. realitic vs. photographic), 2 color types(color vs. black-white), 3 types of meaning(object, action, state). The findings of this study showed that the reaction time and accuracy of colored or object symbols were significantly shorter than those of the uncolored symbols and the symbols representing action or state. The results suggested that AAC system using the colored symbols appropriately might be more effective. In final section, the guidelines for the effective AAC system design and the follow-up researches were discussed.

Citation status

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