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Extended frequency amplification, speech recognition and functional performance in children with mild to severe sensorineural hearing loss
Dissertation (MCommunication Pathology)--University of Pretoria, 2012.
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| Format: | Thesis |
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University of Pretoria
2013
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| _version_ | 1867613543374782464 |
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| access_status_str | Open Access |
| author2 | Pottas, Lidia |
| author_browse | Pottas, Lidia |
| author_facet | Pottas, Lidia |
| collection | Thesis |
| dc_rights_str_mv | © 2012 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MCommunication Pathology)--University of Pretoria, 2012. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/30077 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:37:49.221Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/30077 Extended frequency amplification, speech recognition and functional performance in children with mild to severe sensorineural hearing loss Pottas, Lidia Le Roux, Talita claudsmuller@gmail.com Muller, Claudia Aural/oral performance of children Teach Wipi Peach Extended high frequency amplification Evidence-based approach Word intelligibility Picture identification Paediatric audiologist Hearing instruments Speech recognition Functional performance Children Mild to severe sensory neural hearing UCTD Dissertation (MCommunication Pathology)--University of Pretoria, 2012. A substantial body of research points to the benefits of fitting hearing instruments that provides extended high frequency amplification. Most published research were done on adults or in controlled laboratory settings. It is therefore necessary for peadiatric audiologists to critically assess the effects that this extended high frequency amplification has on the individual child fitted with hearing instruments. A quantitative research method was selected to explore the possible correlations between extended high frequency amplification and the influence this extended high frequency amplification has on speech recognition and functional performance in children with mild to severe sensory neural hearing loss. A quasiexperimental design was selected. This design accommodated a one-group (single-system) pre-test versus post-test design. Baseline assessments were done and all participants were subjected to pre- and post-intervention assessments. Six participants were fitted with hearing instruments which provided extended high frequency amplification. A baseline assessment was done with current hearing instruments after which participants were assessed with the hearing instruments with extended high frequency amplification. Aided audiological assessments were done without the extended high frequencies after which participants were evaluated with the added high frequencies. Speech recognition testing and functional performance questionnaires were used to compare the outcomes obtained with and without the extended high frequency amplification. A t-test was used for hypothesis testing to determine if extended range amplification increased speech recognition abilities and functional performance, and if these increases were statistically significant. Results were varied where some participants performed better and some performed worse with the added extended range amplification during speech recognition testing and functional performances observed at home. These varied results were statistically insignificant. However, statistically significant evidence was obtained to indicate that extended high frequency amplification increased the functional performance observed at school. The study concluded that the paediatric audiologist should know the effect fitting hearing instruments capable of extended high frequency amplification have on speech recognition abilities and functional performances. Fitting hearing instruments with extended high frequency amplification should however be done with caution because not all children benefited from extended bandwidth amplification. This underlines the importance of following a strict evidence-based approach that incorporates objective and subjective assessment approaches. This will provide the paediatric audiologist with real world evidence of the success of the amplification strategy that is followed. Speech-Language Pathology and Audiology Unrestricted 2013-09-07T17:53:39Z 2013-01-10 2013-09-07T17:53:39Z 2012-09-06 2012 2012-12-03 Dissertation Muller, C 2012, Extended frequency amplification, speech recognition and functional performance in children with mild to severe sensorineural hearing loss, MCommunication Pathology, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/30077 > F12/9/303/ag http://hdl.handle.net/2263/30077 http://upetd.up.ac.za/thesis/available/etd-12032012-131800/ © 2012 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | Aural/oral performance of children Teach Wipi Peach Extended high frequency amplification Evidence-based approach Word intelligibility Picture identification Paediatric audiologist Hearing instruments Speech recognition Functional performance Children Mild to severe sensory neural hearing UCTD Extended frequency amplification, speech recognition and functional performance in children with mild to severe sensorineural hearing loss |
| title | Extended frequency amplification, speech recognition and functional performance in children with mild to severe sensorineural hearing loss |
| title_full | Extended frequency amplification, speech recognition and functional performance in children with mild to severe sensorineural hearing loss |
| title_fullStr | Extended frequency amplification, speech recognition and functional performance in children with mild to severe sensorineural hearing loss |
| title_full_unstemmed | Extended frequency amplification, speech recognition and functional performance in children with mild to severe sensorineural hearing loss |
| title_short | Extended frequency amplification, speech recognition and functional performance in children with mild to severe sensorineural hearing loss |
| title_sort | extended frequency amplification speech recognition and functional performance in children with mild to severe sensorineural hearing loss |
| topic | Aural/oral performance of children Teach Wipi Peach Extended high frequency amplification Evidence-based approach Word intelligibility Picture identification Paediatric audiologist Hearing instruments Speech recognition Functional performance Children Mild to severe sensory neural hearing UCTD |
| url | http://hdl.handle.net/2263/30077 http://upetd.up.ac.za/thesis/available/etd-12032012-131800/ |