Development of a method for determining binaural sensitivity to temporal fine structure

F�llgrabe, Christian; Harland, Andrew J.; S?k, Aleksander P.; Moore, Brian C.J.

Abstract

Objective: To develop and evaluate a test of the ability to process binaural temporal-fine-structure (TFS) information. The test was intended to provide a graded measure of TFS sensitivity for all listeners. Design: Sensitivity to TFS was assessed at a sensation level of 30 dB using the established TFS-LF test at center frequencies of 250, 500, and 750 Hz, and using the new TFS-AF test, in which the interaural phase difference (IPD) was fixed and the frequency was adaptively varied. IPDs varied from 30 to 180°. Study Sample: Nine young (19-25 years) and 23 older (47-84 years) listeners with normal hearing over the tested frequency range. Results: For the young listeners, thresholds on the TFS-AF test did not improve significantly with repeated testing. The rank-ordering of performance across listeners was independent of the size of the IPD, and moderate-to-strong correlations were observed between scores for the TFS-LF and TFS-AF tests. Older listeners who were unable to complete the TFS-LF test were all able to complete the TFS-AF test. Conclusion: No practice effects and strong correlations with an established test of binaural TFS sensitivity make the TFS-AF test a good candidate for the assessment of supra-threshold binaural processing.

Citation

Füllgrabe, C., Harland, A. J., Sęk, A. P., & Moore, B. C. (2017). Development of a method for determining binaural sensitivity to temporal fine structure. International Journal of Audiology, https://doi.org/10.1080/14992027.2017.1366078

• Journal Article Type: Article
• Acceptance Date: Aug 6, 2017
• Publication Date: Aug 31, 2017
• Deposit Date: Sep 12, 2017
• Publicly Available Date: Sep 12, 2017
• Journal: International Journal of Audiology
• Print ISSN: 1499-2027
• Electronic ISSN: 1708-8186
• Publisher: Taylor and Francis
• Peer Reviewed: Peer Reviewed
• DOI: https://doi.org/10.1080/14992027.2017.1366078
• Keywords: Psychoacoustics/hearing science, Aging, Adult or general hearing screening, Behavioral measures
• Public URL: https://nottingham-repository.worktribe.com/output/880495
• Publisher URL: http://www.tandfonline.com/doi/full/10.1080/14992027.2017.1366078
• Contract Date: Sep 12, 2017