Clinical feasibility of fast psychophysical tuning curves evaluated using normally hearing adults: success rate, range of tip shift, repeatability, and comparison of methods used for estimation of frequency at the tip

Myers, Joshua and Malicka, Alicja N. (2014) Clinical feasibility of fast psychophysical tuning curves evaluated using normally hearing adults: success rate, range of tip shift, repeatability, and comparison of methods used for estimation of frequency at the tip. International Journal of Audiology, 53 12: 887-894. doi:10.3109/14992027.2014.938778


Author Myers, Joshua
Malicka, Alicja N.
Title Clinical feasibility of fast psychophysical tuning curves evaluated using normally hearing adults: success rate, range of tip shift, repeatability, and comparison of methods used for estimation of frequency at the tip
Journal name International Journal of Audiology   Check publisher's open access policy
ISSN 1499-2027
1708-8186
Publication date 2014-12
Year available 2014
Sub-type Article (original research)
DOI 10.3109/14992027.2014.938778
Open Access Status
Volume 53
Issue 12
Start page 887
End page 894
Total pages 8
Place of publication London, United Kingdom
Publisher Informa Healthcare
Collection year 2015
Language eng
Formatted abstract
Objective: Psychophysical tuning curves (PTCs) have been used predominantly in laboratory settings to assess frequency selectivity in the auditory system. Recently, a fast-PTC procedure has been developed for diagnosis of cochlear dead regions. In this study the clinical feasibility of using fast PTCs in adults was investigated. Success rate (the number of successes per number of attempts) and repeatability were assessed. The range of the tip frequency (ftip) shift was established and different methods of ftip estimation compared. Design: Fast PTCs were measured for signal frequencies (fs) of 500, 1000, 2000, 3000, and 4000 Hz on two occasions using an upward-sweeping masker. Five methods were used to estimate ftip for each PTC. Study sample: Thirty-two adults with normal hearing were tested. Results: All participants were able to successfully complete the task, the majority of them with minimal training. The moving average, quadratic function, and double lowpass filtering methods had the highest success rate in ftip estimation. The quadratic function method had the smallest 95% range of − 3.4% fs to 10.2% fs and the best test-retest reliability of 5.1% fs. Conclusions: Fast PTCs show potential for clinical use due to a high success rate with minimal training required. We suggest the quadratic function method for routine clinical use as it had the smallest 95% range, a high success rate in ftip estimation and the best test-retest reliability. For fast PTCs measured for signal frequencies from 500 to 4000 Hz using an upward-sweeping masker, we suggest the normative range of ftip to be − 3% fs to 10% fs with a test-retest reliability of 5% fs.
Keyword Dead regions
Psychophysical tuning curves
Repeatability
Cochlear dead regions
Articulation index predictions
Threshold-equalizing noise
Impaired listeners
Selectivity
Diagnosis
Children
Masking
Information
Speech
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Health and Rehabilitation Sciences Publications
 
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