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…

A non-English portion of the universal initial-cluster hierarchy is cognitively represented in English-speaking monolingual children and adolescents. Subjects in an experiment were asked to select frequency of non-English consonant clusters, and they were able to reconstruct the phonological hierarchy. (CK)

A detailed analysis of a six-month period in a child's acquisition of phonetic and phonological capacities indicates that the apparent plateau of the second year is a site of intensive language learning, which is not reflected in the growth of vocabulary or mean length of utterance. (Author/EJS)

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…