可聴周波数と視覚的コンテクストが難聴者の環境音識別に与える影響について : 事例の分析をもとに

概要

論文の詳細を見る
The purpose of the present study was to investigate how people with hearing impairments identify environmental sounds. Individuals with hearing impairments took environmental sound identification tests under two conditions: (a) only auditory information, and (b) both auditory and contextual (visual) information. The results revealed that when focusing on auditory information, participants tended to be very good at using temporal information. Moreover, both aided audiogram configurations and a hearing threshold level of 2kHz compared to other frequencies were noted as possible factors enabling identification of environmental sounds. Furthermore, strategies used by individuals with hearing impairments for identifying environmental sounds when contextual information exists can be classified into three types: (a) relying on auditory information as a clue, while not being good at utilizing contextual information, (b) relying on contextual information as a clue, while not being able to understand environmental sounds from only auditory information, and (c) utilizing both auditory and contextual information as clues, and using the information properly according to the situation.
2011-03-31