Infants show a facilitation effect for native language phonetic perception between 6 and 12 months
Infants show a facilitation effect for native language phonetic perception between 6 and 12 months
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DOI：
10.1111/j.1467-7687.2006.00468.x
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发表时间：
2006-03-01
影响因子：
3.7
通讯作者：
Iverson, P
中科院分区：
文献类型：
--
作者：
Kuhl, PK;Stevens, E;Iverson, P
语音感知的发展变化模式对理论发展至关重要。许多先前的研究记录了6至12个月大的非母语语音感知的下降。然而，在同一时期，很少有实验注意到母语语音知觉的发展变化。我们假设第一年的语言经验有助于6至12个月大的母语语音表现。我们在美国和日本测试了6-8个月和10-12个月大的婴儿，使用美国英语Ir-11对比来检查母语和非母语的发展变化模式。实验的目的是：（a）确定促进作用是否是6至12个月大的母语语音变化的特征，（B）检查先前观察到的非母语对比的下降，（c）测试方向不对称的辅音。结果表明，在第一年的母语对比的性能显着增加，在同一时间段内，非母语的看法下降，并表明方向不对称，是恒定的跨年龄和文化。我们认为，神经承诺的母语语音特性解释了在第一年的发展变化的模式。
Patterns of developmental change in phonetic perception are critical to theory development. Many previous studies document a decline in nonnative phonetic perception between 6 and 12 months of age. However, much less experimental attention has been paid to developmental change in native-language phonetic perception over the same time period. We hypothesized that language experience in the first year facilitates native-language phonetic performance between 6 and 12 months of age. We tested 6-8- and 10-12-month-old infants in the United States and Japan to examine native and nonnative patterns of developmental change using the American English Ir-11 contrast. The goals of the experiment were to: (a) determine whether facilitation characterizes native-language phonetic change between 6 and 12 months of age, (b) examine the decline previously observed for nonnative contrasts and (c) test directional asynimetriesjbr consonants. The results show a significant increase in performance for the native-language contrast in the first year, a decline in nonnative perception over the same time period, and indicate directional asymmetries that are constant across age and culture. We argue that neural commitment to native-language phonetic properties explains the pattern of developmental change in the first year.