Open AccessDanish Vestigial Case and the Acquisition of Vocabulary in Distributed Morphology
Author(s) -
Jeffrey K. Parrott
Publication year - 2009
Publication title -
biolinguistics
Language(s) - English
Resource type - Journals
ISSN - 1450-3417
DOI - 10.5964/bioling.8711
Subject(s) - linguistics , morpho , vocabulary , computer science , danish , constraint (computer aided design) , language acquisition , natural language processing , germanic languages , variable (mathematics) , artificial intelligence , german , mathematics , philosophy , botany , geometry , biology , mathematical analysis
As Halle & Marantz (2008: 71) acknowledge, “we have no real idea about how a child assigns features to Vocabulary Items” in Distributed Morphology (DM). Stated generally, how do children acquire language-specific (sometimes variable) mappings between morpho-syntactic features and their morpho-phonological exponents? Following Emonds (1986) in a DM framework, this article advances a testable ‘morphological transparency’ constraint on the acquisition of Vocabulary, and presents supporting results from a pilot observational child-language study in Danish. This constraint explains a significant difference in the mechanisms of Germanic case morphology. By hypothesis, ‘vestigial’ case forms of English and Danish pronouns are contextual allomorphs, with Vocabulary that do not contain any morpho-syntactic case features. Vestigial-case mechanisms constitute a comprehensive analysis of intra-individually variable case-form mismatches in coordinate Determiner Phrases, predicate nominals, and other syntactic structures. Thus, a principle of language acquisition ultimately explains the distribution of case forms both within and across language varieties.