重度聴覚障害児の2歳代における音声および文字言語の習得成績

抄録

Acquisition of oral language (OL) was compared with that of written language (WL) at the age of two years. The subjects were six infants with severe hearing impairment exceeding 80dB (ISO) . OL training was given using a hearing aid during the whole day and WL training was given 1.5 hours a day by means of a WL card method.
Subjects developed WL significantly more dominant than OL in vocabularies, sentence length and function words. Moreover, WL in English was also acquired as easily as with Japanese.
The results would indicate that the training of infants with poor hearing using WL from an early period of life is effective for the promotion of language development.