Vowel and Diphthong Production by Young Users of Cochlear Implants and the Relationship Between the Phonetic Level Evaluation and Spontaneous Speech This investigation assessed how the vowel and diphthong production of young users of cochlear implants varied over time and how performance on the Phonetic Level Evaluation (PLE, Ling, 1976) corresponded with vowel and diphthong production during spontaneous speech. Eight children with prelingual deafness were tested with the PLE on five ... Research Article
Research Article  |   June 01, 1993
Vowel and Diphthong Production by Young Users of Cochlear Implants and the Relationship Between the Phonetic Level Evaluation and Spontaneous Speech
 
Author Affiliations & Notes
  • Nancy Tye-Murray
    The University of Iowa Iowa City
  • Karen Iler Kirk
    The University of Iowa Iowa City
  • Contact author: Nancy Tye-Murray, PhD, Department of Otolaryngology, The University of Iowa, 650 Newton Road, E230 GH, Iowa City, IA 52242.
  • Currently affiliated with Indiana School of Medicine, Indianapolis.
    Currently affiliated with Indiana School of Medicine, Indianapolis.×
Article Information
Speech, Voice & Prosodic Disorders / Hearing Aids, Cochlear Implants & Assistive Technology / Speech, Voice & Prosody / Speech / Research Articles
Research Article   |   June 01, 1993
Vowel and Diphthong Production by Young Users of Cochlear Implants and the Relationship Between the Phonetic Level Evaluation and Spontaneous Speech
Journal of Speech, Language, and Hearing Research, June 1993, Vol. 36, 488-502. doi:10.1044/jshr.3603.488
History: Received January 10, 1992 , Accepted December 7, 1992
 
Journal of Speech, Language, and Hearing Research, June 1993, Vol. 36, 488-502. doi:10.1044/jshr.3603.488
History: Received January 10, 1992; Accepted December 7, 1992

This investigation assessed how the vowel and diphthong production of young users of cochlear implants varied over time and how performance on the Phonetic Level Evaluation (PLE, Ling, 1976) corresponded with vowel and diphthong production during spontaneous speech. Eight children with prelingual deafness were tested with the PLE on five occasions: before receiving a Cochlear Corporation Nucleus cochlear implant and at the following points after receiving a cochlear implant: 6 months, 12 months, 18 months, and 24 or 36 months. An audiovideo recording of spontaneous speech was obtained at each test session. Performance on the PLE was scored with the scoring system designed by Kirk and Hill-Brown (1985) . Performance during spontaneous speaking was scored by referencing a transcription of the spoken message to a transcription of the signed message. The correlations between the PLE and the spontaneous speech measures were weak, suggesting that performance on the PLE has low predictive value for vowel and diphthong production during spontaneous speaking. The results from the spontaneous speech samples collected over time suggest that two changes occurred: (a) vowel and diphthong production became more diverse and (b) production became more accurate. It is suggested that increased access to formant information enables subjects to enlarge their system of phonological performance and refine their motoric ability to establish vowel and diphthong targets.

Acknowledgments
This study was supported by research grants DC00242 and DC00976 from the National Institutes of Health/NIDCD, grant RR59 from the General Clinical Research Centers Program, Division of Research Resources, NIH, and the Iowa Lions Sight and Hearing Foundation. We thank Julie Barkmeier and Gretchen Burns for their assistance with data collection and analysis, George Woodworth for statistical consultation, and Holly Fryauf-Bertschy for her assistance in obtaining subject information.
Order a Subscription
Pay Per View
Entire Journal of Speech, Language, and Hearing Research content & archive
24-hour access
This Article
24-hour access