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Related Experiment Videos

Fricative discrimination in early infancy.

R E Eilers, F D Minifie

    Journal of Speech and Hearing Research
    |March 1, 1975
    PubMed
    Summary

    Infants can distinguish between certain speech sounds like /s/ versus /v/ and /s/ versus /f/. However, they did not show discrimination between /s/ and /z/ sounds in this study.

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    Area of Science:

    • Linguistics
    • Developmental Psychology
    • Speech Perception

    Background:

    • Infant speech perception is crucial for language acquisition.
    • Understanding how infants process phonetic contrasts informs theories of early language development.

    Purpose of the Study:

    • To investigate infants' ability to discriminate between specific consonant sounds.
    • To explore the perception of fricative-alveolar /s/ against other consonants (/v/, /f/, /z/).

    Main Methods:

    • Utilized a high-amplitude sucking paradigm with controlled natural speech stimuli.
    • Conducted three separate experiments, each testing a different sound pair: /s/ vs. /v/, /s/ vs. /f/, and /s/ vs. /z/.

    Main Results:

    • Infants demonstrated evidence of discriminating between /s/ and /v/.
    • Infants also showed discrimination abilities for /s/ versus /f/.
    • No significant evidence for discrimination between /s/ and /z/ was found.

    Conclusions:

    • Infants possess the ability to perceive certain phonetic differences in speech sounds.
    • Findings suggest differential processing of fricative-alveolar contrasts by infants.
    • Results have implications for refining theories of infant speech perception.

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