O desenvolvimento linguístico das vogais médias do português brasileiro por aprendizes hispano-falantes via teoria dos sistemas dinâmicos complexos

Abstract

This research analyzes, qualitatively, the linguistic development of Brazilian Portuguese (BP) open-mid and closed-mid / e /, / Ɛ /, / o / and / ɔ /vowel productions. The research participants are two learners of Portuguese who received classes at the Portuguese, as a third language, to Speakers of Other Languages’ Extension Program (UTFPR-CT), have Spanish as first language – Chilean and Bolivian varieties – and have English as a second language. The study bases on the perspective of Theory of Complex Dynamic Systems (VERSPOOR; DE BOT; LOWIE, 2011; LARSEN-FREEMAN, 2015; DE BOT, 2017) to understand and describe the linguistic development processes. The methodology is composted by two data points, collected in 2017 and 2019, which compose a corpus with 216 words, from which 72 were vehicle sentences (24 target sentences and 48 distractor sentences) and 36 were context sentences (24 target sentences and 12 distractor sentences). The acoustic parameters used were F1, F2 measurements and the extraction of duration measurements – means and relative duration. The results point out a more possible change in vehicle sentences data. In both types of sentence context’s, there are no-linear (LARSEN-FREEMAN, 2015) processes in the vowel pairs, /e/e /Ɛ/ e /o/ e /ɔ/, in what refers to specific changes or variability values (VAN DIJK; VERSPOOR, LOWIE,2011).