Categorização Fonológica e Representação Mental: uma análise da alternância entre [Ks] e [s] à luz de modelos de uso

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

This work has the aim of evaluating patterns of variation in sound sequences of BrazilianPortuguese. Focus is given to the observed alternance of [ks] and [s], as in sintaxe [si taksi]~[si tasi]. Regarding this variation, three groups of words were identified: (1) words in which [ks] and [s] alternate; (2) words in which only [ks] is realized or (3) only [s] is realized, with no alternance. The relations between words in each group were evaluated considering a broader discussion on mental representations and storage dynamics of sounds in the worlds languages. This work also evaluated the issue of whether [ks] can be best accounted for as a sequence of sounds or as a single sound. Studies on Brazilian Portuguese sound system, all based on a formalistic point of view, claim that [ks] is a consonantal cluster, but none of them recognizes the alternance of [ks] and [s] that can be attested in specific words. In this work, it is claimed that unirepresentational models cannot offer a straightforward analysis of the phenomenon studied here, for they cannot explain lexical conditioning that operates in the alternance of [ks] with [s], neither the functional interactions established between [ks] and other sounds of the language, nor the motivations for the alternance. This work claims that the representational models presented by Cognitive Grammar (LANGACKER, 1987), Usage-Based Phonology (BYBEE, 2001) and Pierrehumberts Exemplar Model (2000) can provide a more complete account of the alternance of [ks] with [s]. A comparison is developed on the one side between [ks] and Brazilian Portuguese heterosyllabic consonantal clusters which are not broken by epenthesis, and on the other side between [ks] and Brazilian Portuguese complex consonants. It was attested that [ks], but not heterosyllabic consonantal clusters: (1) can occur in final coda, a position in which [ks] has turned out very productive in the past years; (2) doesnt undergo epenthesis, which was not attested in the experiment. Voicing assimilation of [s] in words with [ks] reduced from a CVC structure was detected, but not in words with [ks] in a plain CC structure. Among the words containing [ks], only a few presented the possibility of alternance with [s], suggesting a case of lexical diffusion. Based on experimental results, multirepresentational analyses of the alternance between [ks] and [s] are presented. It is suggested that this pattern of alternance consists of a case where similar structures display different mental representations. Results of the experiments add proof to some assumptions of usage-based models, such as (1) token frequency has an impact over sound changes (more frequent words are affected by reductive changes first); (2) fine phonetic details are present in mental representations; (3) linguistic use promotes online restructuring of representations; (4) grammar management is specific and individual.

ASSUNTO(S)

língua portuguesa fonologia teses. fonologia lexical teses. língua portuguesa ortografia e silabação teses. fonética teses. representação mental teses. lingua portuguesa consoantes teses. lingüística teses.

ACESSO AO ARTIGO

Documentos Relacionados