Speech production skills in adults with cochlear implants

Torrey Loucks, Ryan Keith Shosted, Michael Novak, Jennifer Black

Research output: Chapter in Book/Report/Conference proceedingConference contribution


To assess the effects of a somatosensory perturbation and an auditory perturbation on sibilant contrasts in normal hearing speakers and post-lingually deaf adults with a cochlear implant (CI). We tested the hypothesis that long-term auditory deprivation experienced by the CI speakers would reduce their ability to adapt to the perturbations. Method: Three normal hearing speakers and one CI speaker participated. Somatosensory feedback during speech was altered by a built-up electropalate that modified the shape of the anterior palate and contrasted with a typical electropalate. Auditory feedback was altered by delivering masking noise to the control speakers and turning OFF the CI speaker's implant. Results: The articulatory and acoustic distinction between /s/ and /S/ was compromised by the perturbed electropalate in all speakers but the CI speaker was most impaired by the perturbation. The /s-S/ distinction improved with the normal electropalate but mostly for the control speakers. Conclusion: The distinction between the fricatives /s/ and /S/ was reduced by altering the shape of the anterior palate. The distinction was especially compromised in a post-lingually deaf CI user suggesting that long-term auditory deprivation may interfere with speech sensorimotor adaptation despite prosthetic hearing. Testing with other CI users is in progress.

Original languageEnglish (US)
Title of host publicationProceedings of the 9th International Seminar on Speech Production
Number of pages8
StatePublished - 2011
Event2011 9th International Seminar on Speech Production, ISSP 2011 - Montreal, Canada
Duration: Jun 20 2011Jun 23 2011


Other2011 9th International Seminar on Speech Production, ISSP 2011

ASJC Scopus subject areas

  • Language and Linguistics
  • Linguistics and Language
  • Computer Science Applications


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