Trehub S E, Thorpe L A, Morrongiello B A
Child Dev. 1987 Jun;58(3):741-9.
Infants 9-11 months of age were tested for their discrimination of changes in the melodic contour (direction of successive pitch changes) of brief melodies in the context of discernible variations in key (different absolute frequencies, same intervals) or interval size (different absolute frequencies and frequency ratios, same contour). Infants detected contour changes in both variable contexts, suggesting that they categorize sequences of sounds on the basis of global, relational properties such as melodic contour. Implications of such processing strategies for infants' perception of running speech are considered.
对9至11个月大的婴儿进行了测试，以考察他们在调性（不同的绝对频率、相同的音程）或音程大小（不同的绝对频率和频率比、相同的旋律轮廓）存在可辨别的变化的情况下，对简短旋律的旋律轮廓（连续音高变化的方向）变化的辨别能力。婴儿在这两种变化的情境中都能检测到轮廓变化，这表明他们根据旋律轮廓等整体的、关系性的属性对声音序列进行分类。文中还探讨了这种处理策略对婴儿感知连续语音的意义。
