Crawford J W
Child Dev. 1982 Aug;53(4):957-62.
The interactions of 16 premature and 17 full-term infants and their mothers were studied at 6, 8, 10, and 14 months of age. The infants were matched on sex, maternal age, parity, and social class. Premature infants vocalized less, played less, and were more fretful than full-term infants of the same chronological age but looked at objects and looked around their environment more. These differences, with the exception of vocalization, disappeared by 14 months. Mothers of premature infants demonstrated more caretaking and affectionate behavior toward their infants. With increasing age the differences between groups decreased. Premature dyads experienced as much interaction as full-term dyads, but premature mothers were not constant over the period under study in the amount of time they spend in the same room as their infants. Mothers responded to the developmental level of their infants. Premature infants behaved increasingly like full-term infants as they grew older.
对16名早产儿和17名足月儿及其母亲在6个月、8个月、10个月和14个月大时的互动情况进行了研究。这些婴儿在性别、母亲年龄、胎次和社会阶层方面进行了匹配。与相同实际年龄的足月儿相比，早产儿发声较少、玩耍较少，且更烦躁不安，但看物体和环顾周围环境的次数更多。除发声外，这些差异到14个月时消失。早产儿的母亲对其婴儿表现出更多的照料和亲昵行为。随着年龄增长，两组之间的差异减小。早产母婴二元组的互动与足月母婴二元组一样多，但在研究期间，早产母亲与婴儿在同一房间度过的时间量并不稳定。母亲对婴儿的发育水平做出反应。随着年龄的增长，早产儿的行为越来越像足月儿。
