Transfer of manual communication to auro-oral communication in young deaf children after cochlear implantation

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  • 人工内耳装用児における手指言語から音声言語への移行

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Abstract

In 1999, Tanaka proposed a new method of language education, namely, a top-down approach, for young profoundly hearing-impaired children who were candidates for cochlear implantation.<br>In this method, language education was first imparted prior to the surgery, by combined use of residual hearing as well as signed Japanese and manual codes of Japanese. As soon as steady progress of language development and the degree of hearing loss in the candidates were confirmed, the surgery for cochlear implantation was planned.<br>In order to transfer manual communication to auro-oral communication, the implanted children who have already acquired knowledge of the Japanese language through vision, are shown manual codes, characters or written words which they already know, and asked to imitate the therapist's or parents' pronunciation of the teaching materials. By this method, these children gradually come to understand spoken words mainly through audition.<br>Since April, 2004, 17 young deaf children with cochlear implants were followed up for over two years. In fifteen of the 17 children, manual communication was successfully transferred to auro-oral communication, while in the remaining two cases, this has not been possible because of auditory hypofunction due to hypoplasia of the auditory nerve or difficulty in learning the language.<br>These findings suggest that careful use of manual communication does not interfere with the development of auro-oral communication in children received undergoing cochlear implant surgery.

Journal

  • AUDIOLOGY JAPAN

    AUDIOLOGY JAPAN 50 (6), 642-650, 2007

    Japan Audiological Society

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