Konuşma Sırasında Farklı Ses Üretimlerinde Gerçekleşen Velofaringeal Bölge Hareketinin Manyetik Rezonans Görüntüleme Yoluyla İncelenmesi
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Date
2022-08Author
İnan, Kübra
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The motion of the articulators may vary
according to the production characteristics of speech sounds and the coarticulatory
context. The motion of the velum, which is a mobile articulator, is also expected to be
affected by the production characteristics of speech sounds and the coarticulatory
context. In our study, magnetic resonance images (MRI) of 20 healthy adult
individuals whose native language is Turkish, were analyzed in the midsagittal plane
in order to investigate the velum motion in different sound productions. The
measurements were done at rest position, isolated production of /a/, /i/, /e/, /o/, /u/ and
during the production of vowels in the consonant-vowel context with a stop/plosive
(/b/, /d/, /g/), fricate (/z/), affricate (/dʒ/), nasal (/m/, /n/), lateral (/l/), flap (/r/). By
means of the measurements performed, it was aimed to compare the velar elevation,
the bending angle of the velum, the distance of the velar angulation from the beginning
of the velum and the distance between the nasal surface of the velum and the posterior
pharyngeal wall. According to the findings of our study, the motion characteristics of
the velum in Turkish speaking healthy adult individuals vary in the production of
different speech sounds. The motion characteristics of the velum change in isolated
vowel productions or in vowels produced in different consonant contexts. Magnetic
resonance imaging is thought to be an appropriate and advantageous method to reveal
these changes. In future research, there is a need for more studies investigating
velopharyngeal port motion through magnetic resonance imaging.