Efficacy of Multiple-Talker Phonetic Identification Training in Postlingually Deafened Cochlear Implant Listeners Purpose This study implemented a pretest-intervention-posttest design to examine whether multiple-talker identification training enhanced phonetic perception of the /ba/-/da/ and /wa/-/ja/ contrasts in adult listeners who were deafened postlingually and have cochlear implants (CIs). Method Nine CI recipients completed 8 hours of identification training using a custom-designed training ... Research Article
Research Article  |   February 01, 2016
Efficacy of Multiple-Talker Phonetic Identification Training in Postlingually Deafened Cochlear Implant Listeners
 
Author Affiliations & Notes
  • Sharon E. Miller
    University of Louisville, KY
  • Yang Zhang
    University of Minnesota, Minneapolis
    Center for Neurobehavioral Development, University of Minnesota, Minneapolis
    Center for Applied and Translational Sensory Science, University of Minnesota, Minneapolis
  • Peggy B. Nelson
    University of Minnesota, Minneapolis
    Center for Applied and Translational Sensory Science, University of Minnesota, Minneapolis
  • Disclosure: The authors have declared that no competing interests existed at the time of publication.
    Disclosure: The authors have declared that no competing interests existed at the time of publication. ×
  • Correspondence to Yang Zhang: zhang470@umn.edu
  • Editor: Nancy Tye-Murray
    Editor: Nancy Tye-Murray×
  • Associate Editor: Richard Dowell
    Associate Editor: Richard Dowell×
Article Information
Hearing Aids, Cochlear Implants & Assistive Technology / Speech, Voice & Prosody / Hearing / Research Articles
Research Article   |   February 01, 2016
Efficacy of Multiple-Talker Phonetic Identification Training in Postlingually Deafened Cochlear Implant Listeners
Journal of Speech, Language, and Hearing Research, February 2016, Vol. 59, 90-98. doi:10.1044/2015_JSLHR-H-15-0154
History: Received April 30, 2015 , Revised September 4, 2015 , Accepted September 21, 2015
 
Journal of Speech, Language, and Hearing Research, February 2016, Vol. 59, 90-98. doi:10.1044/2015_JSLHR-H-15-0154
History: Received April 30, 2015; Revised September 4, 2015; Accepted September 21, 2015

Purpose This study implemented a pretest-intervention-posttest design to examine whether multiple-talker identification training enhanced phonetic perception of the /ba/-/da/ and /wa/-/ja/ contrasts in adult listeners who were deafened postlingually and have cochlear implants (CIs).

Method Nine CI recipients completed 8 hours of identification training using a custom-designed training package. Perception of speech produced by familiar talkers (talkers used during training) and unfamiliar talkers (talkers not used during training) was measured before and after training. Five additional untrained CI recipients completed identical pre- and posttests over the same time course as the trainees to control for procedural learning effects.

Results Perception of the speech contrasts produced by the familiar talkers significantly improved for the trained CI listeners, and effects of perceptual learning transferred to unfamiliar talkers. Such training-induced significant changes were not observed in the control group.

Conclusion The data provide initial evidence of the efficacy of the multiple-talker identification training paradigm for CI users who were deafened postlingually. This pattern of results is consistent with enhanced phonemic categorization of the trained speech sounds.

Acknowledgments
This research was supported by the Capita Foundation (awarded to Yang Zhang), the Bryng Bryngelson Research Fund (awarded to Sharon E. Miller), and the University of Minnesota's Brain Imaging Research Project Award and Grant-in-Aid of Research, Artistry, & Scholarship Program (awarded to Yang Zhang). We would like to thank Andrew Oxenham, Heather Kreft, Edward Carney, Tess Koerner, and Luodi Yu for their assistance.
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