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Summary: Vowell Category Dependence
of the Relationship Between
Palate Height, Tongue Height,
and Oral Area
Mark Hasegawa-Johnson
University of Illinois
at Urbana-Champaign
Shamala Pizza
Abeer Alwan
Jul Setsu Cha
University of California,
Los Angeles
Katherine Haker
Cedars-Sinai Medical Center
Los Angeles
This article evaluates intertalker variance of oral area, logarithm of the oral area,
tongue height, and formant frequencies as a function ofvowel category. The data
consist of coronal magnetic resonance imaging (MRI) sequences and acoustic
recordings of 5talkers, each producing 11 different vowels. Tongue height (leh,
right, and midsagittal), palate height, and oral area were measured in3 coronal
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