Measurement of hearing threshold in multi-handicapped children.
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概要
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It is known that hearing threshold of multi-handicaped children is difficult to determine by tests which require children's cooperation.The purpose of this study was to find out how to measure hearing threshold of multi-handicapped children.The subjects were 41 children aged from 2 years and 4 months to 11 years and 10 months. All of them were mentally retarded, accompanying with one or more of the following handicaps: visual, auditory, emotional and physical handicaps. Their mental level was not determined by standard intelligence tests.Conditioned orientation reflex audiometry was administered by an audiologist who was excellent to perform audiometry over a period of 5 years at intervals of 4 to 6 months.The results showed that: (1) COR audiometry was an effective test for measuring hearing thresholds of multi-handicapped children; (2) thresholds found at the first test tended to be higher than those at later tests, and that the lower thresholds at the second tests were mostly maintained in the following tests; (3) the criterion to determine hearing fluctuation was derived for frequencies 250, 500, 1000, 2000, and 4000Hz.
- 日本聴覚医学会の論文
日本聴覚医学会 | 論文
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