幼児期における子音カテゴリー知覚の発達 : 6種の歯茎音についての実験的検討
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概要
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This study investigated the characteristics of consonant sound perception in Japanese preschool children. Twenty-two children of four to six years of age participated in a speech perception experiment. The experimental stimuli were consonant-vowel (CV) sounds (/ta/, /da/, /sa/, /za/, /na/& /ra/) under two conditions: noise and noiseless. Speech perception responses were analyzed in terms of error frequency and confusion matrices. The following results were revealed. Error frequency of speech perception decreased significantly between the younger and the older children. There was a significant difference among six consonants in perceptual accuracy. Children made more errors in the noise condition than in the noiseless condition. The confusion matrix showed that perceptual errors might be concentrated upon particular error types. These results suggest that preschool children might deal with speech sounds systematically, according to their acoustic characteristics, and the development of perceptual ability might enable children to produce speech sounds with greater accuracy.
- 北翔大学の論文
- 2004-03-20