Underlying Structure of Auditory-Visual Consonant Perception by Hearing-Impaired Children and the Influences of Syllabic Compression

1988 ◽  
Vol 31 (2) ◽  
pp. 156-165 ◽  
Author(s):  
P. A. Busby ◽  
Y. C. Tong ◽  
G. M. Clark
Keyword(s):  
Hearing Aids ◽  
Free Field ◽  
Acoustic Parameter ◽  
Hearing Impaired ◽  
Visual Signal ◽  
Underlying Structure ◽  
Choice Procedure ◽  
Release Times ◽  
Impaired Children ◽  
Hearing Impaired Children

The identification of consonants in a/-C-/a/nonsense syllables, using a fourteen-alternative forced-choice procedure, was examined in 4 profoundly hearing-impaired children under five conditions: audition alone using hearing aids in free-field (A),vision alone (V), auditory-visual using hearing aids in free-field (AV1), auditory-visual with linear amplification (AV2), and auditory-visual with syllabic compression (AV3). In the AV2 and AV3 conditions, acoustic signals were binaurally presented by magnetic or acoustic coupling to the subjects' hearing aids. The syllabic compressor had a compression ratio of 10:1, and attack and release times were 1.2 ms and 60 ms. The confusion matrices were subjected to two analysis methods: hierarchical clustering and information transmission analysis using articulatory features. The same general conclusions were drawn on the basis of results obtained from either analysis method. The results indicated better performance in the V condition than in the A condition. In the three AV conditions, the subjects predominately combined the acoustic parameter of voicing with the visual signal. No consistent differences were recorded across the three AV conditions. Syllabic compression did not, therefore, appear to have a significant influence on AV perception for these children. A high degree of subject variability was recorded for the A and three AV conditions, but not for the V condition.

Equivalent Noise Dose Obtained Through Hearing Aids in the Classrooms of Hearing-Impaired Children

1990 ◽  
Vol 21 (3) ◽  
pp. 147-150
Author(s):  
Ronald A. Wilde
Keyword(s):  
Hearing Aids ◽  
High Gain ◽  
Hearing Impaired ◽  
Deaf Children ◽  
Impaired Children ◽  
Very High ◽  
Hearing Impaired Children

A commercial noise dose meter was used to estimate the equivalent noise dose received through high-gain hearing aids worn in a school for deaf children. There were no significant differences among nominal SSPL settings and all SSPL settings produced very high equivalent noise doses, although these are within the parameters of previous projections.

Relationship of Acoustic Gain to Aided Threshold Improvement in Children

1978 ◽  
Vol 43 (3) ◽  
pp. 348-352 ◽  
Author(s):  
Robert E. Jirsa ◽  
Thomas W. Norris
Keyword(s):  
Hearing Aids ◽  
Hearing Aid ◽  
Hearing Impaired ◽  
Variable Volume ◽  
Relationship Of ◽  
Impaired Children ◽  
Hearing Impaired Children

Aided threshold improvement obtained by 12 hearing-impaired children was compared to the acoustic gain of their hearing aids using both the traditional 2-cc coupler and a variable volume coupler designed to approximate real ear volume in children. Results indicated that acoustic gain determined in the 2-cc coupler underestimated aided threshold improvement by approximately 8.7 dB. Use of the variable volume coupler to determine acoustic gain, however, adequately predicted aided improvement at comfort setting. Use of the variable volume coupler in hearing-aid fittings for children is discussed with special emphasis on preventing over-amplification.

scholarly journals Impact of early intervention of speech and language therapy among hearing impaired child

2020 ◽  
Vol 8 (7) ◽  
pp. 2641
Author(s):  
Rina Kumari ◽  
Sunita Tiwari ◽  
Arun Chatuvedi ◽  
Sunil Kumar ◽  
Nalini Rastogi
Keyword(s):  
Hearing Loss ◽  
Hearing Aids ◽  
Hearing Impaired ◽  
Verbal Response ◽  
Speech And Language ◽  
Language Therapy ◽  
Lexical Development ◽  
Speech And Language Therapy ◽  
Impaired Children ◽  
Hearing Impaired Children

Background: Hearing impairment is a factor that directly compromises the individual’s language which can affect emotional and academic defects by delayed development of communicative ability. This can vary according to the type and degree of hearing loss. Speech therapy intervention is important, along with the use of sound amplification devices, so that the child may have a chance to develop speech, consequently learning and re-habilitation to the society. Aims of the present study was performed to assess the effectiveness of early intervention of speech and language therapy after use of hearing aids to hearing impaired children on their syntactic and lexical development.Methods: This quasi-experimental study conducted on 100 children having different degree of hearing loss at department of Neurology and department of ENT, King George’s Medical University, Lucknow, Uttar Pradesh. After collecting socio-demographic data of subjects by observation, completion of questionnaires, and speech recording by audiologist; Speech and language therapy provide by audiologist for six month after providing hearing aids and improvement in their syntactic and lexical development recorded.Results: There is significant improvement in verbal response from 14% before therapy to 81% after therapy and non-verbal response before therapy was 86% and after therapy was 19%. Before giving speech and language therapy to subjects pointing score was 24%, sign language was 10% and words response was 0% which increases after therapy were 1%, 2% and 39% respectively. Early identified/intervened hearing-impaired children had a notable positive difference in all assessed lingual gains.Conclusions: This is study results definitely point to positive effects of intensive and continuous application of speech and language therapy to syntactic and lexical development of hearing impaired children.

OP267 Evidence for Health Technology Assessment: The Capability Approach

2021 ◽  
Vol 37 (S1) ◽  
pp. 10-10
Author(s):  
Wouter Rijke ◽  
Anneke Vermeulen ◽  
Helen Blom ◽  
Krista Willeboer ◽  
Emmanuel Mylanus ◽  
...  
Keyword(s):  
Hearing Aids ◽  
Capability Approach ◽  
Healthcare Services ◽  
Hearing Impaired ◽  
Conversion Factors ◽  
Model Sets ◽  
Impact Of Technology ◽  
Impaired Children ◽  
The Capability Approach ◽  
Hearing Impaired Children

IntroductionHealthcare services, such as cochlear implants and subsequent rehabilitation, aim to increase valuable activities and opportunities of those affected. Their impact may be inferred from the extent that they protect or restore capability, which reflects the real freedoms that people have to be or do things they have reason to value. Capability emerges from the dynamic interaction between available resources, individual, social, and environmental conversion factors, and functionings. This model sets the informational requirements of the capability approach.MethodsOn the basis of interviews with thirty-three hearing impaired children and thirty hearing peers, information on capability elements (values, resources, conversion factors, and functionings) was collected. Qualitative results were triangulated with standardized clinical audiological and psycholinguistic quantitative measures.ResultsHearing impaired children and their hearing peers concurred in terms of the doings and beings they valued, but differed in terms of conversion factors to realize capability. Parents of hearing impaired children played a more upfront role, hearing impairment predominated many areas of life, and communicating through hearing aids required more energy than was usually acknowledged by the people around them.ConclusionsThe capability approach offers opportunities not only to assess impact of technology on dimensions that are important to patients, but also to better understand the mechanisms that are involved in value generation.

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