Anderson B J
Child Dev. 1977 Dec;48(4):1676-81.
Social responses of 24 mothers and 3-month-old infants were continuously observed and coded in the home to examine reciprocal influences in early vocal interactions. One of 4 dyadic vocal states (simultaneous vocalization, mother vocalizing alone, infant vocalizing alone, mutual silence) was assigned to each consecutive 1-sec interval of the 90-min observational records. The sequence of dyadic vocal states was represented by a first-order transition probability matrix. Transitions between states involving maternal and infant vocal onsets and offsets were analyzed. Results indicated that vocal onsets for both mother and infant were more likely when the other dyad member was vocalizing. There was no evidence of reciprocal influences for vocal offsets. It is suggested that differentiating response onset and offset is necessary for understanding vocal reciprocity in mother-infant interaction.
对24位母亲和3个月大婴儿的社交反应进行了在家中的持续观察和编码，以研究早期语音互动中的相互影响。在90分钟的观察记录中，每连续1秒的时间间隔被分配到4种二元语音状态之一（同时发声、母亲独自发声、婴儿独自发声、相互沉默）。二元语音状态的序列由一阶转移概率矩阵表示。分析了涉及母婴发声开始和结束的状态之间的转换。结果表明，当二元组中的另一个成员发声时，母亲和婴儿发声开始的可能性更大。没有证据表明发声结束存在相互影响。建议区分反应开始和结束对于理解母婴互动中的语音互惠是必要的。
