TYPICAL AND ATYPICAL PHONOLOGICAL ACQUISITION OF CCV SYLLABIC PATTERN: ACOUSTIC AND ARTICULATORY DATA

The hypotheses were: H1 - the production of target words with CV and CCV syllable of the typical children would present different ultrasound and acoustic measurements; H2 - ultrasound and acoustic measurements could differentiate the clinical condition of the children; H3 - children with atypical production could present differences in ultrasound and acoustic measurements between the CCV targets (being the rhotic in the position of C2) and CV (CCV aurally judged as CV).

Ten children recorded words with the target-syllables CCV and CV. Subsequently, perceptive, acoustic, and ultrasound analysis were performed (ratios between tip and blade of the tongue (TT/BT), tip and dorsum of the tongue (TT/DT) and blade and dorsum of the tongue), being analyzed by repeated measures ANOVA. The H1 was corroborated by the ratios between TT/BT, TT/DT and BT/DT, indicating that typical children produce higher elevation of tip and blade of tongue on the CCV target-syllable when compared to the CV target-syllable.