Tongue-palate contact during selected vowels in children with cleft palate.

This study reports tongue-palate contact recorded using electropalatography (EPG) during five vowels /i/, /theta/, /I/, /o/ and /backwards c/ spoken by school-aged children with cleft palate and a group of normal speakers. All the children had articulation disorders affecting consonants but none had obvious vowel errors. Two measures were taken from the EPG data at the temporal midpoint of the vowels.