1999 年 4 巻 4 号 p. 181-184
The purpose of this study is to clarify the nature of information receiving and lost-behavior of perceptional impairments based on analyzing experiments in public environment. Though auditory impairments have similar mature to health person, they have the tendency to be lost and repeat the same simple behavior without understanding their situation by auditory by auditory information. Visual impairments have the tendency to prefer taking information from objects and machines which they can predict easily to sign when they are lost in a way.