Categorical acquisition: parameter-setting in Universal Grammar

Rosalind Thornton, Graciela Tesan

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    Abstract

    Two triggering models of parameter-setting, the Hierarchical Acquisition model endorsed by Baker (2001, 2005) and Wexler’s (1998) Very Early Parameter Setting model, are compared with Yang’s (2002, 2004) Variational model. The Variational model employs statistical learning mechanisms for parameter-setting. Parameter values compete, with delays occurring when the critical input is sparse. Given the uniformity assumption, children in the same linguistic community undergo a similar, gradual development. On the Hierarchical Acquisition model, children initially choose either parameter value, with potential delays arising from hierarchical ordering of parameters. Change is precipitous when initiated. To adjudicate between models, we conducted a longitudinal study of 4 children, ranging from 1;9 to 2;1 at the start of the study, who were in the throes of setting two interlocking parameters governing inflection and negation. Different developmental patterns were observed depending on initial parameter value, and parametric change was precipitous, as anticipated by triggering models.
    Original languageEnglish
    Pages (from-to)49-98
    Number of pages50
    JournalBiolinguistics
    Volume1
    Issue number1
    Publication statusPublished - 2007

    Bibliographical note

    Copyright on this article is retained by the author. This copy is archived with the agreement of the author and according to the conditions of Biolinguistics. Permission to republish or reproduce this version for any reason should be sought from the author.

    Keywords

    • inflection
    • language acquisition
    • negation
    • parameter-setting

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