Time-compressed speech discrimination of children grouped as high and low risk on a reading-readiness test was examined. Children were grouped according to performance on a measure of reading-readiness skills. All passed a hearing screening at fifteen decibels for octave frequencies 250-4000 Hz. The Word Intelligibility by Picture Identification (WIPI) comprised the time-compressed speech task, in a sound field at seventy decibels Sound Pressure Level and zero degrees azimuth. The protocol for administration of the time-compressed speech task was sixty per cent time compression, then zero per cent time compression. Significant effects appeared for time compression ratio and test group. Average difference was twelve per cent and approximately eight per cent at zero.

A dissertation submitted in fulfilment of the requirements for the degree of Master of Arts in Audiology in the faculty of Humanities, University of the Witwatersrand, January 2017 / Background: The benefits of Early Hearing Detection and Intervention (EHDI) services on communication, cognition and socio-emotional development, including academic and vocational outcomes are well documented internationally. However, reports on EHDI services in South Africa are limited to the establishment of programmes for early detection of hearing impairments, with little focus on the outcomes of the subsequent early intervention (EI) for children diagnosed with a hearing impairment. Objective: This study explored the outcomes of two EI preschool programmes in the Gauteng province, South Africa. The current study aimed at describing the communication and school readiness abilities of hearing-impaired children who were enrolled in the EI preschool programmes, as well as to determine the factors that influenced the attainment of school readiness abilities. Methods: A descriptive research study was conducted on eight hearing-impaired children who graduated from two EI preschool programmes in the Gauteng Province. Content analysis was used to analyse the qualitative data while frequency distribution and measures of central tendency were used to analyse the quantitative data. Results: Participants were late-identified with subsequent late provision of amplification devices and commencement of EI services. Consequently, participants demonstrated sub-optimal communication and school readiness abilities for their age. Early access to EHDI services and age-appropriate communication abilities were identified as factors that influenced the attainment of age-appropriate school readiness abilities for children with a hearing impairment. Conclusion: There is a great need for the establishment of more EI programmes that will meet the unique needs of hearing-impaired children in different contexts and ensure that they also have an opportunity to develop on par with their peers with normal hearing. Further research in this area needs to be undertaken exploring similar objectives to the current study with a larger, diverse sample for improved generalisability of the findings. / XL2018

A research report in partial fulfilment of the requirements for the degree of Masters of Arts in Audiology by coursework and research report in the Faculty of Humanities, University of the Witwatersrand, 2016 / Auditory-verbal therapy (AVT) is an intervention approach used as part of an aural (re)habilitation programme conducted by an audiologist with deaf or hard-of-hearing (HOH) children. AVT is a refinement of the oral-aural approach and emphasizes listening instead of visual input. Previous research has focused on AVT in developed countries; however, there is limited available research in developing countries such as South Africa. This study explores and describes the relevance of AVT provided by audiologists in Gauteng, South Africa. The specific objectives of the study were to explore the differences between AVT and general paediatric aural rehabilitation therapies conducted by audiologists; the impact of language on the implementation of AVT and the challenges associated with AVT training. A qualitative research design was used. A purposive sampling strategy was used to identify and recruit participants. Ten audiologists currently conducting aural rehabilitation were selected to participate in the study. The sample size was divided into five audiologists who had obtained the LSL certification (equivalent to AVT certification) and five audiologists without the LSL certification. A pilot study was conducted prior to data collection to determine the applicability of the research study. Thereafter semi-structured interviews were conducted, using an interview schedule. Thematic analysis was employed and themes were described qualitatively. Results revealed the emergence of three resounding themes which included challenges, differences in therapy approaches, and implementation and contributing factors to the success of AVT. The results concluded the need for the implementation of newborn hearing screening programmes to assist with early identification and detection of hearing loss. The study identifies a strong need for the increase in the number of certified LSL therapists in South Africa and additional AVT comprehensive programmes to be implemented at various institutions in Gauteng. Awareness regarding the success of AVT implementation needs to be raised. Finally, the HPCSA needs to revisit and explicitly define the role of audiologists interacting with deaf or HOH children with the LSL qualification being a mandatory postgraduate pre-requisite for working in the field of aural rehabilitation. Key words: Auditory-verbal therapy; aural rehabilitation; deaf; hard-of-hearing. / GR2017

The early selection and use of an appropriate amplification system may be the most important aspect in the aural! rehabilitation of children who are hearing impaired. The main goal guiding the selection of hearing aids for children is to maximize their residual hearing through amplification in order to facilitate speech and language development. Seewald, Ross, and Stelmachciwicz (1987) have developed a speech-spectrum based procedure for selecting hearing aid characteristics for children referred to as the Desired Sensation Level Procedure (DSL) approach. This is an objective method which has been developed specifically for use with young pre-verbal children. I The purpose of the present study was to determine how closely the previously fitted amplification systems of profoundly hearing-impaired children approximated the amplification targets that would be prescribed for their hearing losses by the DSL method. The data were used to examine the feasibility and appropriateness of the DSL method for prescribing amplification for children with profound hearing impairments. Twenty amplification systems worn by profoundly hearing-impaired children were electroacoustically evaluated to discover how closely they approximated the DSL fitting criteria. Hearing thresholds were obtained for each subject for the frequencies 250, 500, 1000, 2000, and 4000 Hz using puretone audiometry. The DSL computer program was used to generate prescribed 2 cc. coupler targets at each frequency. The subjects' amplification systems were electroacoustically analyzed to determine the measured 2 cc. coupler response. Means and standard deviations were reported for prescribed and measured gain values at each frequency. Two-tailed t-tests were computed to determine if a difference exists between prescribed and measured gain. The tests were considered significant at the .05 level. A significant difference between the means was found at 2000 and 4000 Hz. Correlation coefficients were calculated at each frequency to determine if a predictable relationship between prescribed and measured gain existed. Correlation coefficients showed weak relationships between the two groups of data. These results showed the difficulty of meeting prescribed amplification targets, particularly in the high frequencies for children with profound hearing impairments.

Hearing assessment techniques, and counseling for the pediatric population are different from those used on adults. Parents will often not have any prior knowledge of how their child's hearing will be assessed. Therefore, many questions may pertain to the mechanics of the evaluation. Audiologists may find the questions take away some of their counseling time and they have less time to discuss the diagnosis and prognosis of the child. The purpose of this study was to determine if a computer program developed with information about pediatric evaluations could be used to educate individuals about this process. Twenty subjects were involved with this study. Eighteen volunteers were attending Portland State University, and two were volunteers from the general population. Ten subjects were selected to come to Portland State University to view a computer program about pediatric hearing evaluations. The other ten were part of the control group and did not view the computer program. Immediately following each subject answered the questionnaire. The questions on the questionnaire covered information about: otoscopy, behavioral observation audiometry, visual reinforcement audiology, play audiometry, tympanometry and speech testing. The results were tabulated and percentages calculated. The results of this study indicated that, in general, the computer program did educate the participants about pediatric evaluations. In some areas such as tympanometry, otoscopy, and testing procedures the computer program was extremely strong. The information obtained in this study would indicate that a computer program might be used to educate parents about the techniques used in a pediatric evaluation prior to their child's appointment. In some areas such as the information regarding speech testing, and some questions relating to different behavioral techniques, there appears to be a need for further development and expansion, so the parents will be able to retain the information in these areas.

Thesis (M. Communication Pathology)--University of Pretoria, 2009. / Includes bibliographical references.

Auditory impairment in patients with craniofacial clefts has been well studied for decades. However, most previous research has only focused on middle ear disorders and related auditory consequences in this group. Studies of higher level auditory status and central auditory processing abilities of this group—particularly in children—have been unsystematic and have significant limitations, while the potentially negative impact of central auditory impairment on children should not be ignored. One important area which needs further research is the status of the central auditory nervous system (CANS) in children with non-syndromic cleft lip and/or palate (NSCLP). In order to objectively investigate possible central auditory impairment in children with NSCLP, the present research programme was initiated. Firstly, two major studies aimed to provide anatomical structural analysis and functional evaluation of the auditory structures of CANS in a group of infants with NSCLP, and compare the results to those of normal controls (Studies 1 and 2). Secondly, a pilot study (Study 3) was conducted to provide preliminary data and suggest methodology to support a major, future research programme to comprehensively investigate central auditory processing abilities in children with NSCLP. A multi-disciplinary approach that included brain magnetic resonance image (MRI) scanning, auditory evoked potentials (AEP) recording, and a central behavioural auditory test battery assessment protocol, was applied in the present research programme. Based on the results of the studies and data analysis, it was concluded that: (1) Structural abnormalities of CANS in infants with NSCLP may be primarily located in the left cerebral hemisphere and cortical abnormalities were more marked compared with those in other subcortical locations. The development and maturation of the auditory cortex in infants with NSCLP may be abnormal, compared with that in normal children; (2) Infants with NSCLP might have normal auditory sensory function at brain stem and subcortical levels, yet this group may have significant impaired auditory discriminatory function at cortical level; (3) Children with NSCLP may show normal auditory processing abilities in a quiet listening environment. However, they may be more vulnerable to background noise and have impaired auditory processing abilities in areas such as monaural low redundancy and temporal resolution ability. In summary, combining the results of MRI, AEP and behavioural measurements in the present research programme, it is suggested that children with NSCLP are at potential risk of both structural abnormalities and functional disorders of the CANS, particularly at auditory cortical level. In addition, this group might also be at risk of auditory processing impairments to some degree, particularly in noisy environments. The present research programme has made a contribution to our understanding of the central auditory status of children with NSCLP, which was not systematically investigated in previous studies, and provided information on which to base further research. The research findings should draw the attention of researchers and clinicians to improving auditory assessment and intervention for patients with craniofacial cleft disorders. Further efforts in this field in the long-term may help to develop a more sophisticated audiological evaluation and intervention approach for this population. / published_or_final_version / Speech and Hearing Sciences / Doctoral / Doctor of Philosophy

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Thesis (Ph.D.)--York University, 2006. Graduate Programme in Education. / Typescript. Includes bibliographical references (leaves 130-149). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:NR19844

Thesis (Ph. D.)--University of Texas at Austin, 2006. / Vita. Includes bibliographical references.