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Related Experiment Video

Updated: Feb 1, 2026

Electrically Evoked Stapedius Reflex Measurements in Cochlear Implantation and Its Application in the Postoperative Fitting Process
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Development and validation of a spectro-temporal processing test for cochlear-implant listeners.

Alan W Archer-Boyd1, Rosy V Southwell1, John M Deeks1

  • 1MRC Cognition & Brain Sciences Unit, University of Cambridge, 15 Chaucer Road, Cambridge CB2 7EF, United Kingdom.

The Journal of the Acoustical Society of America
|December 8, 2018
PubMed
Summary

The Spectro-Temporal Ripple for Investigating Processor EffectivenesS (STRIPES) test effectively evaluates hearing improvements for cochlear implant (CI) users. This spectro-temporal resolution test aids in assessing new hearing technologies.

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Area of Science:

  • Audiology
  • Neuroscience
  • Signal Processing

Background:

  • Cochlear implant (CI) listeners often struggle with spectro-temporal resolution, impacting speech understanding.
  • Developing effective hearing improvement methods requires precise evaluation tools.
  • Existing psychophysical tests may not fully capture the complex processing demands of CI hearing.

Purpose of the Study:

  • To introduce and validate the Spectro-Temporal Ripple for Investigating Processor EffectivenesS (STRIPES) test.
  • To assess the sensitivity of the STRIPES test to spectro-temporal processing in normal-hearing and CI listeners.
  • To evaluate the effectiveness of different CI processing strategies using the STRIPES test.

Main Methods:

  • The STRIPES test involves discriminating between sine sweeps with increasing or decreasing frequency, manipulating spectro-temporal density.
  • Vocoder simulations with normal-hearing listeners assessed sensitivity to channel number and temporal fidelity.
  • CI listeners compared a standard processing strategy with a wide-filter strategy, with performance analyzed using psychometric functions and adaptive procedures.

Main Results:

  • Vocoder simulations confirmed STRIPES test sensitivity to spectral and temporal processing parameters.
  • CI listeners generally performed better with the standard processing strategy compared to the wide-filter strategy.
  • Significant differences favoring the standard strategy were observed in a majority of CI listeners.

Conclusions:

  • The STRIPES test is a valid and sensitive tool for evaluating spectro-temporal resolution in CI listeners.
  • The test can differentiate the performance of different CI processing strategies.
  • A faster version of the STRIPES test is validated and suitable for novice CI users.