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The Study of Electropalatographic patterns in Cleft Palate Patients

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Abstract

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4. ¸¶ÂûÀ½ À¯Çü¿¡¼­´Â ¼³ÃøÀ½ ġȯÀ½À¸·Î, ¼³ÃøÀ½ À¯Çü¿¡¼­´Â ¸¶Âû ¼³ÃøÀ½ ġȯ Çö»óÀÌ º¸
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±ºº¸´Ù ¸ðµÎ ³Ð°Ô Á¢ÃËÇÏ¿´À¸¸ç Ä¡Á¶À½, ÆÄÂûÀ½ ¹× ¼³ÃøÀ½¿¡¼­´Â ÀǹÌÀÖ´Â °á°ú¸¦ º¸¿´´Ù
(P<0.05).
6. ±¸°³¿­ ȯÀÚÀÇ °æ¿ì ¸ðµç À¯Çü¿¡¼­ ¼³-±¸°³ Á¢ÃË ¸éÀûÀÌ ´ëÁ¶±ºº¸´Ù ³Ð¾úÀ¸¸ç ÆÄ¿­ ±æ
ÀÌ ¹× ¸¶ÂûÀ½ ±æÀ̵µ ±æ°Ô ³ªÅ¸³ª¼­ Á¶À½ÀûÀÎ ¼¼±â°¡ Å« °ÍÀ¸·Î Æò°¡µÇ¾ú´Ù.
#ÃÊ·Ï#
Speech characteristics of cleft palate have been reported previously by hypernasality
disorders. However, some cleft palate patients suffered from articulation disorders
although they were taken surgery at an early time. Misarticulations of cleft palate
patients are caused by abnormal lingual-palatal contacts. Traditionally, the Palatograpy
has been used to see the lingual-palatal patterns. However, on this study, the
Electropalatography(Palatometer) was used to investigate the comparison with
lingual-palatal patterns between normal adult and cleft palate adult. The Nasometer
model 6200-3 was used separately to measure the nasalance for cleft palate patient. The
acoustic characteristics of cleft palate patients with respect to the palatographic patterns
were examined by Computerized Speech Lab(IBM). The dental reflector was applied to
measure the nasal airflow when cleft palate patient uttered. Test words were composed
of meaningless mono syllabic words VCV (V: low center vowel /a/, C: alveolar stop,
velar stop, affricate, fricative and lateral sounds). The subjects repeated the test words
10 times for statistic analysis.
As a result of the palatographic patterns and the burst durations for stop consonants
and the durations for fricative consonants, the cleft palate patients showed broader
contact area, longer burst durations and fricative consonant durations than normal. It
means that the cleft palate speech showed more tenseness of consonants than normal.
By palatographic patterns, the misarticulation of cleft palate patient showed as follows
:
(1) Lingual-palatal contact of alveolar stop showed the palatalized misarticulation.
(2) Lingual -palatal contact of velar stop moved forward in comparison with normal.
However, posterior lateral contact areas were broader than normal contact area.
(3) Lingual-palatal contact of affricate moved backward with narrower constriction
than normal.
(4) Fricative consonant showed lateral misarticulation.

Å°¿öµå

Cleft Palate Speech; Electropalatographic Patterns;

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