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Simplification of /s/ + stop consonant clusters: a developmental perspective.

H W Catts, A G Kamhi

    Journal of Speech and Hearing Research
    |December 1, 1984
    PubMed
    Summary

    Children simplifying /s/ + stop consonant clusters often produced them as voiced stops, indicating a phonemic voicing representation. This study tracked these changes over time in developing speech patterns.

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    Area of Science:

    • Linguistics
    • Speech-Language Pathology
    • Developmental Psychology

    Background:

    • Children often simplify complex consonant clusters during speech development.
    • /s/ + stop clusters are common and challenging for young children to produce accurately.
    • Understanding simplification patterns provides insight into phonological development.

    Purpose of the Study:

    • To investigate individual patterns and changes in /s/ + stop cluster simplifications.
    • To analyze the phonetic realizations of cluster reductions.
    • To determine the phonemic representation of simplified clusters.

    Main Methods:

    • Longitudinal study of six typically developing children.
    • Monthly collection of speech samples containing target clusters.
    • Phonetic transcription and voice onset time (VOT) measurement of stop consonants.

    Main Results:

    • Cluster simplifications were most frequently realized as short-lag VOT stops.
    • Two children used prevoicing, and one used long-lag VOTs in reduced clusters.
    • Reduced clusters and voiced singleton stops showed similar VOTs.

    Conclusions:

    • Children frequently represent simplified /s/ + stop clusters as phonemically voiced stops.
    • Individual variation exists in the phonetic strategies used for cluster reduction.
    • VOT analysis is crucial for understanding phonemic contrasts in developing speech.

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