Maturation of speech-in-noise performance in children using binaural diotic and antiphasic digits-in-noise testing

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dc.contributor.advisor Swanepoel, De Wet
dc.contributor.coadvisor Mahomed Asmail, Faheema
dc.contributor.coadvisor De Sousa, Karina
dc.contributor.postgraduate Wolmarans, Jenique
dc.date.accessioned 2020-08-26T08:20:30Z
dc.date.available 2020-08-26T08:20:30Z
dc.date.created 2020-09
dc.date.issued 2019
dc.description Dissertation (MA)--University of Pretoria, 2019. en_ZA
dc.description.abstract Digits-in-noise (DIN) tests have become very popular over the past 15 years for hearing loss detection. Several recent studies have highlighted the potential utility of digits-in-noise (DIN) as a school-aged hearing test. However, age may influence test performance in children. In addition, a new antiphasic stimulus paradigm has been introduced. This study determined the maturation of speech recognition for diotic and antiphasic DIN in children and evaluated DIN self-testing in young children. A cross-sectional, quantitative, quasi-experimental research design was used in this study. Participants with confirmed normal hearing were tested with diotic and antiphasic DIN test. During the DIN test, arrangements of three spoken digits were presented in noise via headphones at varying signal-to-noise ratios (SNRs). The researcher entered each three-digit sequence the participant said on a smartphone keypad. Six hundred and twenty-one normal hearing (bilateral pure tone threshold of ≤ 20 dB HL at 1, 2, and 4kHz) children between the ages of 6-13 years with normal hearing were recruited in order to examine the comparative maturation of diotic and antiphasic performance. A further sample of 30 first grade (7-year-old) children with normal hearing were recruited to determine the validity of self-testing on a smartphone. Multiple regression analysis including age, gender, and English additional language (i.e. Person whose first language or home language is not English) showed only age to be a significant predictor for both diotic and antiphasic SRT (p < 0.05). Speech reception thresholds improved by 0.15 dB and 0.35 dB SNR per year for diotic and antiphasic SRT, respectively. Post hoc multiple age group comparisons using Bonferroni adjustment for multiple comparisons (by year) showed SRTs for young children (6 to 9 years old) differed significantly from older children (11 to 13 years old) (p < 0.05). There was no significant difference in SRT between age 10 and upward. Self- and facilitated testing in young children was significantly (p > 0.05) different for the antiphasic condition and demonstrated poor reliability in diotic and antiphasic conditions. Increasing age was significantly associated with improved SRT using diotic and antiphasic DIN. Beyond 10 years of age, SRT results of children became more adult-like. However, age effects were only significant up to 10 and 12 years for antiphasic and diotic SRT, respectively. Furthermore, between self- and facilitated testing, the SRT difference was not significant (p > 0.05). en_ZA
dc.description.availability Unrestricted en_ZA
dc.description.degree MA en_ZA
dc.description.department Speech-Language Pathology and Audiology en_ZA
dc.identifier.citation Wolmarans, J 2019, Maturation of speech-in-noise performance in children using binaural diotic and antiphasic digits-in-noise testing, MA Dissertation, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/75902> en_ZA
dc.identifier.other S2020 en_ZA
dc.identifier.uri http://hdl.handle.net/2263/75902
dc.language.iso en en_ZA
dc.publisher University of Pretoria
dc.rights © 2019 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.
dc.subject speech-in-noise recognition en_ZA
dc.subject UCTD en_ZA
dc.subject speech-in-noise recognition
dc.subject diotic, antiphasic
dc.subject speech reception threshold
dc.title Maturation of speech-in-noise performance in children using binaural diotic and antiphasic digits-in-noise testing en_ZA
dc.type Dissertation en_ZA


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