補聴器と読話の併用効果について
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概要
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The purpose of this study is to explore to what extent those who wear hearing aid use speechreading for their communication and also relationship between speech-reading ability and the severity of hard of hearing. For this purpose the author attempted the discrimination test using 5-lists of 3-syllable words to 100 hearing-aided cases of the sensory-neural hard of hearing individuals.The following are the five test situations employed.1) Speech-reading alone (silent)2) Unaided hearing alone3) Aided hearing alone4) Unaided combination (auditory and visual)5) Aided combination (auditory and visual)The results obtained are as follows :1) 81% of the individuals under the tests showed the effectiveness of the aided combination, which was remarkable in the crses with a hearing loss of between 71 and 80 dB.2) Among the educated in speech-reading, there were found some individuals who are not making satisfactory use of the auditory cue because of their over dependence upon the ability of speech-reading.3) Even in the uneducated in speech-reading, the compensatory aquirement of its ability was seen, and their speech discrimination was performed preformed predominantly by the auditory cue for those with a hearing loss between 80dB and by the visual cue for those with a loss exceeding this value.4) The speech discrimination tests described here are believed to be useful for determining the application of a hearing aid to severe cases of the sensory-neural hard of hearing individuals.
- 社団法人 日本耳鼻咽喉科学会の論文