Full Text Available
Note: Clicking the button above will open the full text document at the original institutional repository in a new window.
Linear frequency transposition and word recognition abilities of children with moderate-to-severe sensorineural hearing loss
Dissertation (MCommunication Pathology)--University of Pretoria, 2010.
Saved in:
| Other Authors: | |
|---|---|
| Format: | Thesis |
| Published: |
University of Pretoria
2013
|
| Subjects: | |
| Tags: |
No Tags, Be the first to tag this record!
|
| _version_ | 1867613662925029376 |
|---|---|
| access_status_str | Open Access |
| author2 | Van Dijk, Catherine-Anne |
| author_browse | Van Dijk, Catherine-Anne |
| author_facet | Van Dijk, Catherine-Anne |
| collection | Thesis |
| dc_rights_str_mv | © 2009, 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, 2010. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/23109 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:39:43.129Z |
| 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:2263/23109 Linear frequency transposition and word recognition abilities of children with moderate-to-severe sensorineural hearing loss Van Dijk, Catherine-Anne Groenewald, Emily annerinav@yahoo.com Grobbelaar, Annerina Moderate-to-severe sensorineural hearing loss Linear frequency transposition Hearing aids Evidence-based practice Developing contexts Developed countries Children with hearing loss Audiology Advanced digital signal processing Paediatric amplification Word intelligibility by picture identification Wipi Word recognition UCTD Dissertation (MCommunication Pathology)--University of Pretoria, 2010. Conventional hearing aid circuitry is often unable to provide children with hearing loss with sufficient high frequency information in order to develop adequate oral language skills due to the risk of acoustic feedback and the narrower frequency spectrum of conventional amplification. The purpose of this study was to investigate word recognition abilities of children with moderate-to-severe hearing loss using hearing aids with linear frequency transposition. Seven children with moderate-to-severe sensorineural hearing loss between the ages of 5 years 0 months and 7 years 11 months were selected for the participant group. Word recognition assessments were first performed with the participants using their own previous generation digital signal processing hearing aids. Twenty-five-word lists from the Word Intelligibility by Picture Identification (WIPI) test were presented to the participants in three test conditions, namely: at 55 dB HL in quiet, 55 dB HL with a +5 dB signal-to-noise ratio (SNR) and at 35 dB HL. The participants were then fitted with an ISP-based hearing aid without linear frequency transposition, and the word recognition assessments were repeated with different WIPI word lists under the same conditions as the first assessment. Linear frequency transposition was then activated in the ISP-based hearing aid and different WIPI word lists were presented once more under identical conditions as the previous assessments. A 12-day acclimatization period was allowed between assessments, and all fittings were verified according to the DSL v5 fitting algorithm. Results indicated a significant increase of more than 12% in word recognition score for some of the participants when they used the ISP-based hearing aid with linear frequency transposition. A significant decrease was also seen for some of the participants when they used the ISP-based hearing aid with linear frequency transposition, but all participants presented with better word recognition scores when they used the ISP-based hearing aids without linear frequency transposition compared to their previous generation digital signal processing hearing aids. This study has shown that linear frequency transposition may improve the word recognition skills of some children with moderate-to-severe sensorineural hearing loss, and more research is needed to explore the criteria that can be used to determine candidacy for linear frequency transposition. Speech-Language Pathology and Audiology Unrestricted 2013-09-06T14:31:34Z 2010-03-11 2013-09-06T14:31:34Z 2009-09-01 2010-03-11 2010-03-11 Dissertation Grobbelaar, A 2009, Linear frequency transposition and word recognition abilities of children with moderate-to-severe sensorineural hearing loss, MCommunication Pathology dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/23109 > E10/11/ag http://hdl.handle.net/2263/23109 http://upetd.up.ac.za/thesis/available/etd-03112010-104801/ © 2009, 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 application/pdf application/pdf application/pdf application/pdf University of Pretoria |
| spellingShingle | Moderate-to-severe sensorineural hearing loss Linear frequency transposition Hearing aids Evidence-based practice Developing contexts Developed countries Children with hearing loss Audiology Advanced digital signal processing Paediatric amplification Word intelligibility by picture identification Wipi Word recognition UCTD Linear frequency transposition and word recognition abilities of children with moderate-to-severe sensorineural hearing loss |
| title | Linear frequency transposition and word recognition abilities of children with moderate-to-severe sensorineural hearing loss |
| title_full | Linear frequency transposition and word recognition abilities of children with moderate-to-severe sensorineural hearing loss |
| title_fullStr | Linear frequency transposition and word recognition abilities of children with moderate-to-severe sensorineural hearing loss |
| title_full_unstemmed | Linear frequency transposition and word recognition abilities of children with moderate-to-severe sensorineural hearing loss |
| title_short | Linear frequency transposition and word recognition abilities of children with moderate-to-severe sensorineural hearing loss |
| title_sort | linear frequency transposition and word recognition abilities of children with moderate to severe sensorineural hearing loss |
| topic | Moderate-to-severe sensorineural hearing loss Linear frequency transposition Hearing aids Evidence-based practice Developing contexts Developed countries Children with hearing loss Audiology Advanced digital signal processing Paediatric amplification Word intelligibility by picture identification Wipi Word recognition UCTD |
| url | http://hdl.handle.net/2263/23109 http://upetd.up.ac.za/thesis/available/etd-03112010-104801/ |