出版社：Faculdade de Letras, Pontifícia Universidade Católica do Rio Grande do Sul
摘要：The acquisition of falling oral diphthongs in Brazilian Portuguese was discussed in Bonilha (2000) on the basis of data on 86 cross-sectional subjects in light of standard Optimality Theory (OT) – generativist/connectionist. The results show that the acquisition of diphthongs formed by low vowels precedes that of diphthongs formed by mid-high and high vowels. Benayon (2006), using multi-representational models, challenges this analysis by taking issue with the OT approach. The argument is based on the fact that type and token frequencies play a role in the phonological development process. The present paper, based on the longitudinal data on a subject aged 1:0 and 4:0, proposes a reanalysis of the acquisition of the falling oral diphthongs in Brazilian Portuguese on the basis of connectionist Optimality Theory. It aims at demonstrating the suitability of this theoretical model for a data analysis that takes the role of type and token frequency into account. Palavras-chave: aquisição; Teoria da Otimidade Conexionista; ditongos orais decrescentes.
