A Comparative Study On Switching Ability Of Continuous Speech Between Hearing-impaired And Normal Hearing Children And Its Application

This research investigates the switching ability of continuous speech of 35 hearing impaired children and 90 normal hearing children between 3 and 5 years old with self-made materials. On the basis of reference standard, the raining suggestions for hearing impaired children are provided according to the results of comparison. Further more, one case is also included.Results:1. The character of normal hearing children on switching ability of continuous speech.(1)On switching fluency of continuous speech, there is extremely significant difference in age but not in gender. AUS, SN, AUP, USP show no difference between three age groups; SF, FN grow rapidly at 4 years old, while grow slowly at 3 and 5 years old; there's significant difference between 4 and 5 years old at AUA, SF and RU.(2)On switching intelligibility of continuous speech, there is extremely significant difference both in gender and age. Female shows a better performance. There's no significant development after 4 years old on SF, SN, FN and USP; AUS and USP show a significant improvement between 3 to 5 years old, and well develop at 5; AUA, AF, and RU which need more time to be finished is evidently different among various ages.(3)Compared to single syllable, switching intelligibility of continuous speech grows rapidly from a low level, and they are on close level at 5 years old.(4) Switching fluency and intelligibility of continuous speech are significant-positive correlation. No one can afford to neglect the importance of switching fluency.2. The comparison between hearing impaired and normal hearing children and training suggestions for hearing impaired children.(1) There is significant difference between hearing impaired and normal hearing children on switching ability of continuous speech. Hearing impaired children is 33% and 41% lower than normal hearing children on each test.(2)On switching fluency of continuous speech, SF is similar between hearing impaired and normal hearing children. And on the other sub-tests, the sequence is almost the same. So the training can be planed according to normal hearing children.(3) On switching intelligibility of continuous speech, all tests have similar sequence. So the training can be planed according to normal hearing children.(4)The material can be divided into five groups. Training suggestions of switching ability of continuous speech for hearing impaired children are provided on the basis of the results.3. A case studyA clinical application has been done on a hearing impaired child. In this case, the author uses the test material and makes a rehabilitation training plan. Through the result of this training, we confirm the importance of test of switching fluency and intelligibility of continuous speech.