Cargando…
Evaluation of a Method for Determining Binaural Sensitivity to Temporal Fine Structure (TFS-AF Test) for Older Listeners With Normal and Impaired Low-Frequency Hearing
The ability to process binaural temporal fine structure (TFS) information was assessed using the TFS-AF test (where AF stands for adaptive frequency) for 26 listeners aged 60 years or more with normal or elevated low-frequency audiometric thresholds. The test estimates the highest frequency at which...
Autores principales: | , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
SAGE Publications
2017
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5669320/ https://www.ncbi.nlm.nih.gov/pubmed/29090641 http://dx.doi.org/10.1177/2331216517737230 |
_version_ | 1783275836326019072 |
---|---|
author | Füllgrabe, Christian Moore, Brian C. J. |
author_facet | Füllgrabe, Christian Moore, Brian C. J. |
author_sort | Füllgrabe, Christian |
collection | PubMed |
description | The ability to process binaural temporal fine structure (TFS) information was assessed using the TFS-AF test (where AF stands for adaptive frequency) for 26 listeners aged 60 years or more with normal or elevated low-frequency audiometric thresholds. The test estimates the highest frequency at which a fixed interaural phase difference (IPD) of ϕ (varied here between 30° and 180°) can be discriminated from an IPD of 0°, with higher thresholds indicating better performance. A sensation level of 30 dB was used. All listeners were able to perform the task reliably, giving thresholds well above the lowest allowed frequency of 30 Hz. The duration of a run averaged 5 min. Repeated testing of the normal-hearing listeners showed no significant practice effects. Thresholds varied markedly across listeners, but their ranking was fairly consistent across values of ϕ. Thresholds decreased (worsened) with decreasing ϕ and were lower than for a group of young listeners tested in an earlier study. There were weak to moderate, negative correlations between TFS-AF thresholds and audiometric thresholds at low frequencies (125–1000 Hz) but not at high frequencies (4000–8000 Hz). In conclusion, the TFS-AF test yielded a graded measure of binaural TFS sensitivity for all listeners. This contrasts with the TFS-LF (low-frequency) test, which measures the smallest detectable shift in IPD for a fixed frequency. The absence of practice effects and a reasonably short administration time make the TFS-AF test a good candidate for the assessment of sensitivity to changes in binaural TFS for older listeners without or with hearing loss. |
format | Online Article Text |
id | pubmed-5669320 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | SAGE Publications |
record_format | MEDLINE/PubMed |
spelling | pubmed-56693202017-11-16 Evaluation of a Method for Determining Binaural Sensitivity to Temporal Fine Structure (TFS-AF Test) for Older Listeners With Normal and Impaired Low-Frequency Hearing Füllgrabe, Christian Moore, Brian C. J. Trends Hear Original Article The ability to process binaural temporal fine structure (TFS) information was assessed using the TFS-AF test (where AF stands for adaptive frequency) for 26 listeners aged 60 years or more with normal or elevated low-frequency audiometric thresholds. The test estimates the highest frequency at which a fixed interaural phase difference (IPD) of ϕ (varied here between 30° and 180°) can be discriminated from an IPD of 0°, with higher thresholds indicating better performance. A sensation level of 30 dB was used. All listeners were able to perform the task reliably, giving thresholds well above the lowest allowed frequency of 30 Hz. The duration of a run averaged 5 min. Repeated testing of the normal-hearing listeners showed no significant practice effects. Thresholds varied markedly across listeners, but their ranking was fairly consistent across values of ϕ. Thresholds decreased (worsened) with decreasing ϕ and were lower than for a group of young listeners tested in an earlier study. There were weak to moderate, negative correlations between TFS-AF thresholds and audiometric thresholds at low frequencies (125–1000 Hz) but not at high frequencies (4000–8000 Hz). In conclusion, the TFS-AF test yielded a graded measure of binaural TFS sensitivity for all listeners. This contrasts with the TFS-LF (low-frequency) test, which measures the smallest detectable shift in IPD for a fixed frequency. The absence of practice effects and a reasonably short administration time make the TFS-AF test a good candidate for the assessment of sensitivity to changes in binaural TFS for older listeners without or with hearing loss. SAGE Publications 2017-11-01 /pmc/articles/PMC5669320/ /pubmed/29090641 http://dx.doi.org/10.1177/2331216517737230 Text en © The Author(s) 2017 http://creativecommons.org/licenses/by/4.0/ This article is distributed under the terms of the Creative Commons Attribution 4.0 License (http://www.creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage). |
spellingShingle | Original Article Füllgrabe, Christian Moore, Brian C. J. Evaluation of a Method for Determining Binaural Sensitivity to Temporal Fine Structure (TFS-AF Test) for Older Listeners With Normal and Impaired Low-Frequency Hearing |
title | Evaluation of a Method for Determining Binaural Sensitivity to Temporal Fine
Structure (TFS-AF Test) for Older Listeners With Normal and Impaired Low-Frequency
Hearing |
title_full | Evaluation of a Method for Determining Binaural Sensitivity to Temporal Fine
Structure (TFS-AF Test) for Older Listeners With Normal and Impaired Low-Frequency
Hearing |
title_fullStr | Evaluation of a Method for Determining Binaural Sensitivity to Temporal Fine
Structure (TFS-AF Test) for Older Listeners With Normal and Impaired Low-Frequency
Hearing |
title_full_unstemmed | Evaluation of a Method for Determining Binaural Sensitivity to Temporal Fine
Structure (TFS-AF Test) for Older Listeners With Normal and Impaired Low-Frequency
Hearing |
title_short | Evaluation of a Method for Determining Binaural Sensitivity to Temporal Fine
Structure (TFS-AF Test) for Older Listeners With Normal and Impaired Low-Frequency
Hearing |
title_sort | evaluation of a method for determining binaural sensitivity to temporal fine
structure (tfs-af test) for older listeners with normal and impaired low-frequency
hearing |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5669320/ https://www.ncbi.nlm.nih.gov/pubmed/29090641 http://dx.doi.org/10.1177/2331216517737230 |
work_keys_str_mv | AT fullgrabechristian evaluationofamethodfordeterminingbinauralsensitivitytotemporalfinestructuretfsaftestforolderlistenerswithnormalandimpairedlowfrequencyhearing AT moorebriancj evaluationofamethodfordeterminingbinauralsensitivitytotemporalfinestructuretfsaftestforolderlistenerswithnormalandimpairedlowfrequencyhearing |