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. Author manuscript; available in PMC: 2008 Dec 9.
Published in final edited form as: J Speech Lang Hear Res. 2007 Dec;50(6):1510–1545. doi: 10.1044/1092-4388(2007/104)

Table 1.

Major sources of MRI data on the developing vocal tract. For each published study, the table shows the number of subjects and their characteristics.

Study n Ages
Fitch and Giedd (1999) 129 2 to 25
Vorperian, Kent, Gentry, and Yandell (1999) 2 Birth to 3 years 9 mos; longitudinal data.
Vorperian (2000) 20 Birth to 6 years, 9 months. Note - Some children studied longitudinally.
Arens et al. (2002) 92 1 to 11 years
Vorperian et al. (2005) 37 25 children (Birth to 6yrs 9mos) & 12 adults. Note - Some children studied longitudinally.