I had -special thanks to Prof. Dr. Livia Oushiro-for inspiring lectures.I thank the Department of Linguistics at Stockholm University (SU) for providing me all the support I needed during the long period I have stayed in Sweden conducting the research, from staff to dear colleagues that I had the chance to learn from and share pleasant moments.I thank Dr. Miguel Oliveira Jr. (Federal University of Alagoas -UFAL) for being a constant source of inspiration and encouragement. I have learnt some much from him. Also, thanks to the "Group of Studies in Phonetics and Phonology (fonUFAL)" for all the technical support and assistance I received during the data acquisition process.Thanks to Dr. Cristina Felipeto (UFAL) for introducing me to the realm of linguistic studies while I was still an undergrad student, and Dr. Eduardo Calil (UFAL) for guiding me in my first years of research as a student, as well as Dr. Luzia Payão (UNCISAL) for fostering my interest in phonetics/phonology studies at the speech-language pathology and audiology faculty. Thanks to Dr. Ana Carolina Constantini for supervising me during my research qualification at UNICAMP. Thanks to Dr. Justin Lo (University of York) for providing one of the scripts used to carry out the statistical analyses and kindly responding to my queries. Also, thanks to Prof. Dr. Marcin Wlodarczak (Stockholm University) for his valuable assistance concerning data visualization.I want to express my gratitude to Dr. Sandra Madureira (PUC-SP), Dr. Livia Oushiro (UNI-CAMP), Prof. Dr. Luciana Lucente (UFMG), Dr. Pablo Arantes (UFSCar), Dr. Renata Passetti (PUC-SP) for reading the thesis dissertation and for presenting relevant comments/suggestions.