Noun-class prefixes are obligatory in most Bantu languages. However, the Sotho languages (Sesotho, Setswana, Sepedi) permit a subset of prefixes to be realized as null at the intersection of "unmarked" phonological, syntactic, and discourse conditions. This raises the question of how and when the licensing of null prefixes is learned. Using…

Provides evidence from child language acquisition and comparative syntax for existence of a syntactic parameter in the classical sense of Chomsky (1981), with simultaneous effects on syntactic argument structure. Implications are that syntax is subject to points of substantive parametric variation as envisioned in Chomsky, and the time course of…

Presents the Lexical/Semantic Hypothesis, which proposes that early learning is more lexically oriented, and that early word combinations can be explained by more semantically oriented accounts than the Full Competence Hypothesis. The article also replaces the Grammatical Infinitive Hypothesis with the Modal Hypothesis. (32 references) (Author/CK)

This paper reports on a study of two girls about one year of age, part of a longitudinal study of the development of consonants by children learning their first language. Data are compared with a third child whose progress has been previously documented. Phone classes were grouped and phone trees analyzed for each child. A high level of…

The monograph under review is a study of the acquisition of certain complex linguistic structures by children over the age of five. After a short introduction, Chomsky describes in chapter 2 the linguistic properties of four types of constructions: (1) John is eager to see; John is easy to see; (2) John promised Bill to shovel the driveway; John…

A microgenetic approach to studying grammatical morpheme learning uses longitudinal data from two children learning English in different ways. Eight general attributes of morphological systems are proposed that will promote or inhibit the emergence of filler syllables during development. (Contains 86 references.) (Author/LB)