Related resources
Full-text held externally
- PMID: 22429189
- UKPMCID: 22429189
- DOI: 10.3109/14992027.2012.658969
Search for item elsewhere
University researcher(s)
Academic department(s)
Agreement between psychophysical tuning curves and the threshold equalizing noise test in dead region identification.
Warnaar, Bastiaan; Dreschler, Wouter A
International journal of audiology. 2012;51(6):456-64.
Access to files
Full-text and supplementary files are not available from Manchester eScholar. Full-text is available externally using the following links:
Full-text held externally
- PMID: 22429189
- UKPMCID: 22429189
- DOI: 10.3109/14992027.2012.658969
Abstract
OBJECTIVE: Identification of dead regions is currently based on the results of psychophysical tuning curves (PTC) and the threshold equalizing noise (TEN) test. Summers et al (2003) found poor agreement (56%) between PTC- and TEN test results. Kluk and Moore (2005) argued that these results are explained by beat- and/or combination tone detection. The purpose of this study was to examine the diagnostic dead region relationship between PTCs, modified for beats and/or combination tone detection, and the TEN test with levels calibrated in hearing levels (HL), i.e., TEN[HL]. DESIGN: Twenty-four hearing-impaired ears were evaluated using PTCs and the TEN[HL] test. RESULTS: The results show an agreement of about 75%, depending on the criteria applied, between PTC and the TEN[HL] test. Results also show that PTC probe levels affected diagnostic results in PTCs. CONCLUSIONS: Recommended criteria based on the highest agreement score included a PTC shift of 20% and an 8-dB probe elevation above TEN masking levels for the TEN[HL] test. Low agreement scores and level dependent effects in PTCs and the TEN[HL] test suggest that identification of dead regions using a single test is not reliable.