Field T, Ting G, Shuman H H
Dev Psychobiol. 1979 Mar;12(2):97-100. doi: 10.1002/dev.420120203.
The onset of rhythmic activities was compared for 2 groups of high-risk infants (a preterm Respiratory Distress Syndrome and a postterm postmature group) and a normal term group over their 1st year of life. The postterm postmature group experienced earlier onsets of rhythmic activities. The preterm RDS group showed delays in the onset of rhythmic activities, but when a correction was made for the prematurity, did not differ from the other groups. These differences suggest that the onset dates for rhythmic activities are not affected by the perinatal complications of RDS or postmaturity, but are related to gestational age differences. A comparison of the 3 groups on Bayley 1st-year motor skills revealed group differences even after an adjustment for gestational age differences, suggesting that the development of motor skills, unlike the development of rhythmic activities, may have been affected by these perinatal complications.
对两组高危婴儿（一组为患有呼吸窘迫综合征的早产儿，另一组为过期产足月儿）以及一组正常足月儿在其生命的第一年进行了节律性活动起始时间的比较。过期产足月儿组的节律性活动起始时间更早。患有呼吸窘迫综合征的早产儿组的节律性活动起始时间出现延迟，但在对早产因素进行校正后，与其他组并无差异。这些差异表明，节律性活动的起始日期不受呼吸窘迫综合征或过期产这些围产期并发症的影响，而是与胎龄差异有关。对这三组婴儿进行贝利第一年运动技能测试的比较发现，即使在校正了胎龄差异后，仍存在组间差异，这表明与节律性活动的发展不同，运动技能的发展可能受到了这些围产期并发症的影响。
