Developmental Changes in Speech Discrimination in Infants A visually reinforced infant speech discrimination (VRISD) paradigm is described and evaluated. Infants at two ages were tested with the new paradigm on the following speech contrasts: [sa] vs [va], [sa] vs [∫a], [sa] vs [za], [as] vs [a:z], [a:s], vs [a:z], [at] vs [a:d], [a:t] vs [a:d], [at] vs ... Research Article
Research Article  |   December 01, 1977
Developmental Changes in Speech Discrimination in Infants
 
Author Affiliations & Notes
  • Rebecca E. Eilers
    University of Miami, Florida
  • Wesley R. Wilson
    University of Washington, Seattle
  • John M. Moore
    University of Washington, Seattle
Article Information
Research Articles
Research Article   |   December 01, 1977
Developmental Changes in Speech Discrimination in Infants
Journal of Speech, Language, and Hearing Research, December 1977, Vol. 20, 766-780. doi:10.1044/jshr.2004.766
History: Received July 20, 1976 , Accepted May 10, 1977
 
Journal of Speech, Language, and Hearing Research, December 1977, Vol. 20, 766-780. doi:10.1044/jshr.2004.766
History: Received July 20, 1976; Accepted May 10, 1977

A visually reinforced infant speech discrimination (VRISD) paradigm is described and evaluated. Infants at two ages were tested with the new paradigm on the following speech contrasts: [sa] vs [va], [sa] vs [∫a], [sa] vs [za], [as] vs [a:z], [a:s], vs [a:z], [at] vs [a:d], [a:t] vs [a:d], [at] vs [a:t], [fa] vs [θa], and [fi] vs [θi]. The data reported are compared with data on the same speech contrasts obtained from three month olds in a high-amplitude sucking paradigm. Evidence suggesting developmental changes in speech-sound discriminatory ability is reported. Results are interpreted in light of salience of available acoustic cues and in terms of new methodological advances.

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