Comparing Rapid and Traditional Forward-Masked Spatial Tuning Curves in Cochlear-Implant Users

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Abstract

A rapid forward-masked spatial tuning curve measurement procedure, based on Bekesy tracking, was adapted and evaluated for use with cochlear implants. Twelve postlingually-deafened adult cochlear-implant users participated. Spatial tuning curves using the new procedure and using a traditional forced-choice adaptive procedure resulted in similar estimates of parameters. The Bekesy-tracking method was almost 3 times faster than the forced-choice procedure, but its test–retest reliability was significantly poorer. Although too time-consuming for general clinical use, the new method may have some benefits in individual cases, where identifying electrodes with poor spatial selectivity as candidates for deactivation is deemed necessary.

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Kreft, H. A., DeVries, L. A., Arenberg, J. G., & Oxenham, A. J. (2019). Comparing Rapid and Traditional Forward-Masked Spatial Tuning Curves in Cochlear-Implant Users. Trends in Hearing, 23. https://doi.org/10.1177/2331216519851306

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