While a brief or lightly-articulated nasal consonant has long been reported after word-final nasal vowels in Brazilian Portuguese (BP), little is known about its place of articulation or factors contributing to its occurrence. The results of an electropalatographic (EPG) study indicate that the consonant’s emergence is most likely tied to the tongue position of the nasal vowel and that its plac...

Citation: GENC A, Kasapoglu B. Meningiomas of the Third Ventricle in Childhood. Neurosurg. 2016, 1:2. Intraventricular meningiomas are rare and relatively more often seen in children. Most often, these arise from the lateral ventricular walls. On the other hand, meningiomas of the third ventricle are extremely unusual and difficult to diagnose [1]. Those meningiomas arising in the third ventric...

The tongue repositioning manoeuvre has been demonstrated to lead to a closed rest position of orofacial structures with increased contact of the velum with the tongue and a contact position of the tongue at the hard palate. Within the multifactorial etiology of snoring, the tongue repositioning manoeuvre was used as training method in conjunction with pressure indicating oral shields to reduce ...

Magnetic resonance imaging (MRI) has served as a valuable tool for studying static postures in speech production. Now, recent improvements in temporal resolution are making it possible to examine the dynamics of vocal-tract shaping during fluent speech using MRI. The present study uses spiral k-space acquisitions with a low flip-angle gradient echo pulse sequence on a conventional GE Signa 1.5-...

Real-time magnetic resonance imaging (rtMRI) provides information about the dynamic shaping of the vocal tract during speech production. This paper introduces and evaluates a method for quantifying articulatory strategies using rtMRI. The method decomposes the formation and release of a constriction in the vocal tract into the contributions of individual articulators such as the jaw, tongue, li...

Context Several studies tend to show that visual articulatory feedback is useful for phonetic correction, both for speech therapy and “Computer Aided Pronunciation Training” (CAPT) [1]. In [2], we proposed a visual articulatory feedback system based on a 3D talking head used in “an augmented speech scenario”, i.e. displaying all speech articulators including the tongue and velum. In the propose...

Since high speed X-ray films still provide the best dynamic view of the entire vocal tract, large existing databases have been preserved and are available for the speech research community. We propose a new technique for facilitating the extraction of the vocal tract shape and the movements of the articulators from complete sequences of these databases. The method was first developed for the ex...

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...

Meningiomas are uncommon tumors in children and either more rarely encountered in the pineal region. We report two cases of meningioma of the pineal region in children. One of these cases was a five years-old girl and the other a one year-old boy. No specific clinical presentation or tomographic examinations findings was identified before treatment, suggestive of a diagnosis of meningioma. The ...

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 ...