摘要:Focusing the palatalization of coronal stops, a study with children acquiring Brazilian Portuguese, in normal and deviant process, makes clear a significant influence of the linguistic context in the behavior of consonantal segments, causing phonetic effects of co-articulation. In the analysis of the data, theoretical model based in constraints, as Optimality Theory, and dynamic model, as Articulatory Phonology, show more consistency in the explanation of context dependent phenomenon, like palatalization, than Autosegmental Theory, that demands a mixed solution, with the use of rules and also the use of output constraints.