Auditory steady-state response in cochlear implant patients

Alejandro Torres-Fortuny, Isabel Arnaiz-Marquez*, Heivet Hernández-Pérez, Eduardo Eimil-Suárez

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Introduction and objective: Auditory steady state responses to continuous amplitude modulated tones at rates between 70 and 110 Hz, have been proposed as a feasible alternative to objective frequency specific audiometry in cochlear implant subjects. The aim of the present study is to obtain physiological thresholds by means of auditory steady-state response in cochlear implant patients (Clarion HiRes 90K), with acoustic stimulation, on free field conditions and to verify its biological origin. Methods: 11 subjects comprised the sample. Four amplitude modulated tones of 500, 1000, 2000 and 4000 Hz were used as stimuli, using the multiple frequency technique. The recording of auditory steady-state response was also recorded at 0 dB HL of intensity, non-specific stimulus and using a masking technique. Results: The study enabled the electrophysiological thresholds to be obtained for each subject of the explored sample. There were no auditory steady-state responses at either 0 dB or non-specific stimulus recordings. It was possible to obtain the masking thresholds. A difference was identified between behavioral and electrophysiological thresholds of −6 ± 16, −2 ± 13, 0 ± 22 and −8 ± 18 dB at frequencies of 500, 1000, 2000 and 4000 Hz respectively. Conclusions: The auditory steady state response seems to be a suitable technique to evaluate the hearing threshold in cochlear implant subjects.

Original languageEnglish
Pages (from-to)268-274
Number of pages7
JournalActa Otorrinolaringologica Espanola
Volume69
Issue number5
DOIs
Publication statusPublished - Sep 2018

Keywords

  • auditory steady state response
  • cochlear implant
  • electromagnetic artifact
  • free field
  • masking technique
  • objective measures

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    Torres-Fortuny, A., Arnaiz-Marquez, I., Hernández-Pérez, H., & Eimil-Suárez, E. (2018). Auditory steady-state response in cochlear implant patients. Acta Otorrinolaringologica Espanola, 69(5), 268-274. https://doi.org/10.1016/j.otorri.2017.08.007