Performance-Intensity Function and Aided Improvement in Individuals With Late-Onset Auditory Neuropathy Spectrum Disorder (Record no. 17754)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03369caa a2200205 4500 |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER | |
| International Standard Serial Number | 1538-4667 |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Jijo Pottackal Mathai |
| 245 #0 - TITLE STATEMENT | |
| Title | Performance-Intensity Function and Aided Improvement in Individuals With Late-Onset Auditory Neuropathy Spectrum Disorder |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Name of publisher, distributor, etc. | Wolters Kluwer Health, Inc |
| Date of publication, distribution, etc. | 2017 |
| 270 ## - ADDRESS | |
| Address | Department of Audiology, All India Institute of Speech and Hearing, Mysore, Karnataka, India. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | e109-e117 |
| 490 ## - SERIES STATEMENT | |
| Volume/sequential designation | Volume 38 Issue 2 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Objectives: The purpose of the study was to explore the effect of inten-sity on speech perception in individuals with late-onset auditory neurop-athy spectrum disorder (ANSD) by obtaining their performance-intensity (PI) function. Additionally, the study investigated the effect of PI function on aided speech perception. It was hypothesized that speech perception abilities of individuals with ANSD vary with intensity and may provide information regarding their aided performance.Design: A factorial research design was used to obtain the PI function and aided performance. Thirty individuals with late-onset ANSD in the age range of 14 to 42 years were evaluated. All the participants had bilat-eral mild to moderately-severe symmetrical hearing loss and were naive hearing aid users. A PI function was obtained for each participant for phonemically-balanced words. Further, aided performance was evalu-ated for binaural digital hearing aids fitted using the National Acoustic Laboratories-Non-linear 1 method.Results: It was found that the sensation level at which maximum word recognition scores were obtained varied across the participants. However, the majority of the participants had maximum scores below 30 dB SL. A large number of participants had a rollover PI function where the word recognition scores deteriorated with increase in pre-sentation level. However, a few individuals demonstrated improvement in word recognition scores with increase in presentation level. Rollover index calculated from the PI function clearly demarcated those who had improved speech perception with hearing aids from those who did not. It was found that those with a rising pattern had aided speech identifica-tion scores that were significantly higher than their unaided scores. No such difference was found in those with a rollover. Further, aided benefit calculated by obtaining the difference between the aided and unaided scores was significantly higher in those with a rising PI function than those with a rollover function.Conclusions: The word recognition scores of individuals with ANSD var-ied with sensation level. This implies that obtaining the word recognition scores at a single presentation level may not accurately represent the speech perception abilities of those with ANSD. Further, a PI function helps differentiate those individuals with ANSD who benefit from hearing aids from those who do not. |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Auditory neuropathy spectrum disorder, Hearing aids, Performance-intensity function. |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Asha Yathiraj |
| 773 ## - HOST ITEM ENTRY | |
| Main entry heading | Ear and hearing |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | https://doi.org/10.1097/AUD.0000000000000368 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Faculty Publications |
| -- | FJAS |
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