Gestural coordination of Brazilian Portugese nasal vowels in CV syllables: A real-time MRI study

نویسندگان

  • Alexsandro R. Meireles
  • Louis Goldstein
  • Reed Blaylock
  • Shrikanth S. Narayanan
چکیده

The coordination of velum and lingual gestures for Brazilian Portuguese nasal vowels in CV syllables is studied with real-time magnetic resonance imaging (rt-MRI). Four syllable structures were compared: stop-oral vowel, stop-nasal vowel, nasal-oral vowel, nasal-nasal vowel. Results show near-synchrony timing (in-phase) for the consonant onset and nasal vowel’s lingual onset, and for the consonant release and velum onset in the stop-nasal vowel syllable structure. The other syllabic structures present nearsynchrony timing (in-phase) for all their gesture’s onsets.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The emergence of nasal velar codas in Brazilian Portuguese: an rt-MRI study

Real-time MRI has become an increasingly useful tool in articulatory studies, especially in examining posterior regions of the vocal tract. Previous work on Brazilian Portugese has shown the emergence of coda consonants following word-final nasal vowels, though this has been limited to the discussion of front vowels and coda emergence in anterior regions of the vocal tract. We present rt-MRI ev...

متن کامل

Nasal Coda and Vowel Nasality in Brazilian Portuguese

Despite different theoretical perspectives and methodologies, nasal vowels in Brazilian Portuguese are characterized by their variability. Such variability can be understood in terms of vowel height related to velum movement (Clumeck, 1976; Cagliari, 1977) or in terms of segmental right context (Almeida, 1976; Cagliari, 1977; Shosted, 2006; Lovatto, 2008; Medeiros et al., 2008). Brazilian Portu...

متن کامل

Lingual differences in Brazilian Portuguese oral and nasal vowels: An MRI study

It has been shown that oral and nasal vowel pairs can differ substantially in their oro-pharyngeal configuration (besides the position of the velum), an effect that may lead to the enhancement of certain acoustic features associated with nasalization. We use real-time MRI to compare the lingual configuration of oral and nasal vowels in Brazilian Portuguese at various timepoints during the produ...

متن کامل

Velic coordination in French nasals: a real-time magnetic resonance imaging study

Production of nasal vowels in French, and nasal consonants in French and English, was examined using real-time magnetic resonance imaging (rtMRI). The coordination of velic and lingual gestures was found to be tightly controlled across different prosodic contexts in French nasals. Velum lowering in English nasal consonants did not show the same control, although the timing of the corresponding ...

متن کامل

An MRI study of the oral articulation of European Portuguese nasal vowels

There is increasing evidence that, in addition to velopharyngeal coupling, lingual position may also change during production of phonemic nasal vowels. In order to investigate differences in oral articulation between European Portuguese (EP) nasal vowels and oral counterparts, imaging data (both static and real-time MRI) of several EP speakers (male and female) are used. Superimposition of outl...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2015