Comprehensible Pictograms for Hearing-Impaired Persons:- Proposal for Improvements in Public Information Symbols from the Viewpoint of Hearing-Impaired Persons -

概要

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In this research, we show how public information symbols should be improved for easy understanding by hearing-impaired (HI) persons. We conducted two investigations to clarify how HI persons interpret the meaning of pictograms, and the relationship they form between meanings and shapes. First, we asked HI students and hearing students the meaning of public information symbols. Second, we asked HI students to modify the pictograms they often misunderstood. It is thought that HI children and students have difficulty grasping things abstractly. Our results show that HI persons tend to literally link shapes to meanings. For example, they misunderstood the symbol for "No admittance" as "Keep moving" or "No Males." And they modified this symbol to show a person entering a doorway or stepping over a fence or line. Pictograms generally convey broad meanings and implications by their symbolic iconography. However, our research reveals that HI persons have difficulty interpreting broad meanings from a concrete shape.