Markedness, the Organization of Linguistic Information in Speech Production, and Language Acquisition
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In recent work (Lapointe, 1982, 1985) I have been exploring some extensions of Garrett’s (1975) model of normal adult sentence production in an attempt to explain certain aspects of agrammatic aphasia. In the present paper, I would like to consider the role of markedness in those extensions of the normal production system and to explore the relationship among markedness principles, the information manipulated by the speech system, and child language acquisition. The paper will proceed in the following way. First, I will outline the relevant extensions of Garrett’s model, concentrating specifically on the operations of the Syntactic Processor, the most important of which for the present discussion involves accessing information from two types of stores -- one containing fragments of syntactic structures, the other containing function words. These stores are organized according to markedness principles which relate structural fragments and function words to the semantic notions that they typically express. Because it is important for the subsequent discussion, I will describe in some detail the principles underlying this store organization for the particular case of VP fragments, V inflections, and auxiliary (Aux) Vs.
KeywordsVersus Form Basic Notion Language Acquisition Speech Production Function Word
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