Visual and Auditory Statistical Learning and Language Performance in Children With Normal Hearing and Children With Cochlear Implant

서지정보

· 발행기관 : 한국언어치료학회
· 수록지 정보 : 언어치료연구 / 25권 / 3호 / 173 ~ 190페이지
· 저자명 : 현승희, 임동선

초록

Purpose: The large individual differences in children with CI have been explained by age of implantation (AOI), duration of implant use (DOI), communication mode, social economic states (SES), parental education level, and gender. However, recent research has focused on neurocognitive factors such as statistical learning, which is critical for language development. The purpose of the current study was to investigate the relationship of visual and auditory statistical learning and language performance in children with CI. Methods: Fifteen children with NH and fifteen children with CI participated in the study. A visual statistical learning task (VSL) and an auditory statistical learning task (ASL) were used for experimental tasks and a receptive vocabulary and a degraded listening task (high vs. low predictable sentence) were used for language tasks. Results: The results showed that children with CI showed a defect in visual and auditory statistical learning ability compared to the children with NH. In the NH group, age significantly predicted receptive vocabulary with high predictability accuracy. However, in the children with CI, it was AOI that significantly predicted high predictability accuracy. Additionally, low predictability accuracy was predicted by AOI and visual statistical learning ability. Conclusions: The overall results suggest that AOI is an important factor of explaining the causal relationship between language processing ability in children with CI. Also, poor statistical learning ability may be an underlying reason of the language processing deficit in children with CI. Lastly, statistical learning in the visual domain represented the overall fundamental learning ability in children with CI.

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