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Visually impaired people have difficulties in perceiving environmental informationincluding the size of a space and the presence of objects, by means of visual information. Particularly,auditory-trained visually impaired people can recognize 3-D spatial information bymeans of environmental sounds. However, a systematic learning method of auditory spatialperception for walking training has not been sufficiently established because of insufficient informationregarding visually impaired people's movement in the real environment; most acquirethis ability through practical experience. In this report, the authors aimed at demonstrating themobility of visually impaired people, for example, which acoustical factors can be used in someliving situations and in what kind of environmental situations do they find it difficult to perceivesilent objects. Results indicated the following facts: Totally visually impaired people tend toget more spatial information from auditory cues than do not-totally visually impaired people.Regarding available auditory cues, items of rotating the head in order to listen carefully to environmentalsounds, and hitting floors forcefully with a white cane or foot to increase the volumeof reflected or reverberated sounds were the cues most often selected by the totally visuallyimpaired participants who can perceive obstacles with auditory information.
- NTUT Education of Disabilities
NTUT Education of Disabilities 10, 9-15, 2012-03-00
The Committee for Promotion of Academic and Social Contribution, National University Corporation Tsukuba University of Technology