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Related Experiment Videos

Programming the cochlear implant based on electrical acoustic reflex thresholds: patient performance

L G Spivak1, P M Chute, A L Popp

  • 1Manhattan Eye, Ear and Throat Hospital, New York.

The Laryngoscope
|October 1, 1994
PubMed
Summary
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Electrical acoustic reflex thresholds (EARTs) may effectively program cochlear implants for patients unable to provide reliable feedback. Speech recognition performance was similar between EART-based and comfort-level maps.

Area of Science:

  • Audiology
  • Biomedical Engineering
  • Neurosurgery

Background:

  • Electrical Acoustic Reflex Threshold (EART) is a reliable measure of comfort levels in cochlear implant users.
  • Current programming methods rely on subjective behavioral comfort levels.

Purpose of the Study:

  • To investigate the efficacy of using EARTs for programming the Nucleus cochlear implant.
  • To compare speech recognition performance between EART-based and comfort-level maps.

Main Methods:

  • EARTs and behavioral comfort levels were recorded from 7 adult cochlear implant patients.
  • Two programming maps were created per patient: one based on comfort levels, one on EARTs.
  • Speech recognition performance was assessed using open-set tests for each map.

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Main Results:

  • Mean speech perception scores were comparable between the two map types.
  • Individual analysis showed 5 out of 7 subjects performed equally well or better with EART-based maps.
  • Two subjects performed better with comfort-level maps.

Conclusions:

  • EARTs can serve as a viable alternative to behavioral comfort levels for cochlear implant programming.
  • This method is particularly beneficial for patients who cannot provide reliable psychophysical judgments.
  • EART-based programming shows potential for optimizing cochlear implant outcomes.