In this paper, some developmental characteristics of a population of hearing-impaired children are described. The 79 children described are all those born in Greater Manchester in the years 1977-1980 with a mean bilateral sensorineural hearing loss of 25 dB HL or more in the better ear and without additional handicaps or bilingualism in the home. The subjects attended clinics in which comprehensive monitoring of their development was carried out by means of audiological, psychological and linguistic testing and video-recordings of mother-child interaction. In this cross-sectional study of their first clinic attendance at the ages of between 3 and 7, the measures used to define their levels of language ability and intelligence are described. As a means of dealing with the wide range of values, the children were blocked into groups according to their spontaneous language level and the results are reported groupwise.
In this cross-sectional study, some characteristics of the maternal language of a large group of hearing-impaired children are described (n = 74). The children had mean bilateral sensori-neural hearing loss of 25-123 dB HL in the better ear; they were monolingual, suffered no additional handicaps, and at the time of the study were aged 3-7 years old. The language data reported here were obtained by transcribing video-recorded play sessions. Both quantitative and syntactic analyses were applied to the maternal language. The aims of the study were: (1) to describe the distribution of the measures; (2) to establish whether any relationships exist between the children's characteristics (language level, degree of hearing loss, social class, IQ) on the one hand and the type of language used by the mother on the other; and (3) to draw comparisons with maternal language to hearing children. The implications of the findings are discussed and suggestions for further investigation are given.
DSP hearing aids without low electromagnetic interference processors should not be fitted to clients if personal FM systems are expected to be used. Manufacturers of DSP aids should be encouraged to use low electromagnetic interference processors in their DSP hearing aid design. Meanwhile, FM systems should be used with DSP hearing aids in such a way as to ensure high received radio signal levels, and FM receivers should be switched off when not in use.
The practicalities of fabricating earmoulds for young babies (under the age of 3 months) have been investigated. The results indicate that earmoulds can be satisfactorily fabricated provided there are changes in approach in the fabrication procedure. This applies in both the ear impression taking and in the format of the final earmould.
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