Discrimination of Linguistic Stress in Early Infancy The high-amplitude sucking (HAS) paradigm was used to evaluate the ability of one- to four-month-old infants to discriminate two artificially synthesized disyllables (/ba bá and bá ba/) which differed solely in the location of perceived stress. One hundred and twenty infants were tested in two experiments. A modification of the ... Research Article
Research Article  |   June 01, 1977
Discrimination of Linguistic Stress in Early Infancy
 
Author Affiliations & Notes
  • David R. Spring
    University of Washington, Seattle
  • Philip S. Dale
    University of Washington, Seattle
Article Information
Research Articles
Research Article   |   June 01, 1977
Discrimination of Linguistic Stress in Early Infancy
Journal of Speech, Language, and Hearing Research, June 1977, Vol. 20, 224-232. doi:10.1044/jshr.2002.224
History: Received September 5, 1976 , Accepted September 16, 1976
 
Journal of Speech, Language, and Hearing Research, June 1977, Vol. 20, 224-232. doi:10.1044/jshr.2002.224
History: Received September 5, 1976; Accepted September 16, 1976

The high-amplitude sucking (HAS) paradigm was used to evaluate the ability of one- to four-month-old infants to discriminate two artificially synthesized disyllables (/ba bá and bá ba/) which differed solely in the location of perceived stress. One hundred and twenty infants were tested in two experiments. A modification of the HAS paradigm was developed, in which both stimuli are alternated postshift. The results of the first experiment demonstrate that young infants are able to discriminate the acoustic correlates of stress location (fundamental frequency, intensity, and duration) and that the modified HAS paradigm produces significantly stronger evidence for this discrimination than does the standard paradigm. The second experiment determined that infants can discriminate durational differences alone, without concomitant variations in the naturally correlated parameters of fundamental frequency and intensity.

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