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The clinical value of the auditory steady state response for early diagnosis and amplification for infants (0-8 months) with hearing loss
Dissertation (Master of Communication Pathology)--University of Pretoria, 2007.
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University of Pretoria
2013
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| _version_ | 1867613465466634240 |
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| access_status_str | Open Access |
| author2 | Groenewald, Emily |
| author_browse | Groenewald, Emily |
| author_facet | Groenewald, Emily |
| collection | Thesis |
| dc_rights_str_mv | © 2006, 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 (Master of Communication Pathology)--University of Pretoria, 2007. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/23362 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:36:34.949Z |
| 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:2263/23362 The clinical value of the auditory steady state response for early diagnosis and amplification for infants (0-8 months) with hearing loss Groenewald, Emily Swanepoel, De Wet s85243435@tuks.co.za Stroebel, Deidre Objective tests Estimate behavioral thresholds Auditory brainstem response Assr measured thresholds Assr predicted thresholds Frequency specific Auditory evoked potentials. Test battery Validation of hearing aids Auditory steady state response UCTD Dissertation (Master of Communication Pathology)--University of Pretoria, 2007. There has always been a need for objective tests that assess auditory function in infants, young children, and/or any patient whose development level precludes the use of behavioral audiometric techniques. Although the Auditory Brainstem Response (ABR) is seen as the ‘gold standard’ in the field of objective audiometry, it presents with its own set of limitations. The Auditory Steady State Response (ASSR) has gained considerable attention and is seen as a promising addition to the AEP ‘family’ to address some of the limitations of the ABR. The ASSR promises to estimate all categories of hearing loss (mild to profound) in a frequency specific manner. It also indicates to the possibility to validate hearing aid fittings by determining functional gain of hearing aids by determining unaided and aided ASSR thresholds. An exploratory research design was selected in order to compare unaided thresholds, obtained through the use of three different procedures – ABR, ASSR and behavioral thresholds. Aided thresholds were also obtained and compared with two procedures – the aided ASSR (measured and predicted) and aided behavioral threshold. The results indicated that both the ABR (tone burst and click) and ASSR provided a reasonable estimation of the subsequently obtained behavioral audiograms. The ASSR, however, approximated the behavioral thresholds closer than the ABR and were furthermore able to quantify hearing thresholds accurately for subjects with severe and profound hearing losses. The result indicated further that the ASSR can be instrumental in the validation process of hearing aid fittings in infants. These results demonstrated however, that the ASSR measured thresholds underestimate the aided behavioral thresholds and the aided ASSR predicted thresholds overestimate the aided behavioral thresholds. The research concluded that the ASSR is useful in estimating frequency-specific behavioral thresholds accurately in infants and validating hearing aid fittings. Until evidence is sufficient to recommend the ASSR as primary electrophysiological measure of hearing in infants, the ASSR should be used in conjunction with the ABR – following a test battery approach in the diagnostic process of hearing loss in infants. The ASSR further shows great promise in validating hearing aid fittings, but this specific application of the ASSR needs further research evidence on large groups to validate the procedure. Speech-Language Pathology and Audiology unrestricted 2013-09-06T15:09:42Z 2007-03-22 2013-09-06T15:09:42Z 2006-04-25 2007-03-22 2007-03-22 Dissertation Stroebel, D 2006, The clinical value of the auditory steady state response for early diagnosis and amplification for infants (0-8 months) with hearing loss, Master dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/23362 > http://hdl.handle.net/2263/23362 http://upetd.up.ac.za/thesis/available/etd-03222007-190636/ © 2006, 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 application/pdf application/pdf application/pdf University of Pretoria |
| spellingShingle | Objective tests Estimate behavioral thresholds Auditory brainstem response Assr measured thresholds Assr predicted thresholds Frequency specific Auditory evoked potentials. Test battery Validation of hearing aids Auditory steady state response UCTD The clinical value of the auditory steady state response for early diagnosis and amplification for infants (0-8 months) with hearing loss |
| title | The clinical value of the auditory steady state response for early diagnosis and amplification for infants (0-8 months) with hearing loss |
| title_full | The clinical value of the auditory steady state response for early diagnosis and amplification for infants (0-8 months) with hearing loss |
| title_fullStr | The clinical value of the auditory steady state response for early diagnosis and amplification for infants (0-8 months) with hearing loss |
| title_full_unstemmed | The clinical value of the auditory steady state response for early diagnosis and amplification for infants (0-8 months) with hearing loss |
| title_short | The clinical value of the auditory steady state response for early diagnosis and amplification for infants (0-8 months) with hearing loss |
| title_sort | clinical value of the auditory steady state response for early diagnosis and amplification for infants 0 8 months with hearing loss |
| topic | Objective tests Estimate behavioral thresholds Auditory brainstem response Assr measured thresholds Assr predicted thresholds Frequency specific Auditory evoked potentials. Test battery Validation of hearing aids Auditory steady state response UCTD |
| url | http://hdl.handle.net/2263/23362 http://upetd.up.ac.za/thesis/available/etd-03222007-190636/ |