Consonant Lingual-Palatal Contacts Produced by Normal-Hearing and Hearing-Impaired Children Ten normal hearing (NH) and 18 profoundly hearing-impaired (HI) children were recorded using palatometry and audiotape while producing the consonants /t,d,k,g,s,z,∫/ in CV syllables (V=/i, α/). The lingual-palatal contacts produced by the NH subjects for the alveolar stops were undifferentiated across voicing and vowel environment differences. Lingual-palatal contact patterns for ... Research Article
Research Article  |   December 01, 1991
Consonant Lingual-Palatal Contacts Produced by Normal-Hearing and Hearing-Impaired Children
 
Author Affiliations & Notes
  • Paul A. Dagenais
    University of Alabama at Birmingham
  • Paula Critz-Crosby
    University of Alabama at Birmingham
  • Requests for reprints should be sent to Paul A. Dagenais, PhD, Department of Speech Pathology and Audiology, University of South Alabama, Mobile, AL 36688.
  • Currently affiliated with the University of South Alabama, Mobile.
    Currently affiliated with the University of South Alabama, Mobile.×
Article Information
Hearing / Research Articles
Research Article   |   December 01, 1991
Consonant Lingual-Palatal Contacts Produced by Normal-Hearing and Hearing-Impaired Children
Journal of Speech, Language, and Hearing Research, December 1991, Vol. 34, 1423-1435. doi:10.1044/jshr.3406.1423
History: Received June 13, 1990 , Accepted March 5, 1991
 
Journal of Speech, Language, and Hearing Research, December 1991, Vol. 34, 1423-1435. doi:10.1044/jshr.3406.1423
History: Received June 13, 1990; Accepted March 5, 1991

Ten normal hearing (NH) and 18 profoundly hearing-impaired (HI) children were recorded using palatometry and audiotape while producing the consonants /t,d,k,g,s,z,∫/ in CV syllables (V=/i, α/). The lingual-palatal contacts produced by the NH subjects for the alveolar stops were undifferentiated across voicing and vowel environment differences. Lingual-palatal contact patterns for the velar stops differed for vowel environment but not for voicing. The /s/ and /z/ sibilants were distinguished by groove width but not anterior place. Groove locations for /s/ and /z/ were more anterior than groove locations for /∫/. The anterior grove location for the /∫/ was vowel dependent. The HI subjects produced idiosyncratic lingual-palatal contact patterns. As patterns for individuals became more unique and less variable across the syllable stimuli, listener identifications showed correspondingly incorrect, undifferentiated responses. The atypical contact patterns used by the HI subjects often required interpretation of possible tongue activities during attempts at the various consonants.

Acknowledgments
The authors would like to thank the Alabama School for the Deaf (ASD) for its cooperation in completing this project, and specifically Jan M. Stiff and Judy F. Johnston of ASD for their assistance in data collection. Appreciation is also extended to Stephen C. Smith and Martin J. McCutcheon for hardware and software development, Donna Neff for systems maintenance, and Sherry Sutphin and Glenda Clyde for manufacturing pseudopalates and assisting with data reductions.
Order a Subscription
Pay Per View
Entire Journal of Speech, Language, and Hearing Research content & archive
24-hour access
This Article
24-hour access