van der Meer A L, van der Weel F R, Lee D N, Laing I A, Lin J P
Department of Psychology, University of Edinburgh, UK.
Dev Med Child Neurol. 1995 Feb;37(2):145-58. doi: 10.1111/j.1469-8749.1995.tb11984.x.
Healthy term infants and infants classified as neurologically at-risk because of low birthweight and preterm birth were tested longitudinally between 20 and 48 weeks on the ability to use visual information predictively. Reaching for an object moving at different speeds was assessed; the object was occluded from view by a screen during the last part of its approach. At each infant's first reaching session, gaze anticipated the reappearance of the moving toy; however, onset of reaching and prospective control of gaze and hand varied considerably between the normal and at-risk groups. In addition, some at-risk infants geared their actions not to the time but to the distance that the toy was from the catching place, causing problems with faster-moving toys. The two children who anticipated least well were the only two of the at-risk group who were later diagnosed as having cerebral palsy.
对足月健康婴儿以及因低体重和早产而被归类为神经学高危的婴儿，在20至48周期间纵向测试其预测性使用视觉信息的能力。评估了婴儿伸手抓取以不同速度移动的物体的情况；在物体接近的最后阶段，屏幕会遮挡其视线。在每个婴儿的首次伸手抓取测试中，凝视能预测移动玩具的再次出现；然而，正常组和高危组在伸手抓取的开始以及凝视和手部的前瞻性控制方面存在很大差异。此外，一些高危婴儿的动作不是根据时间，而是根据玩具到抓取位置的距离来调整，这给移动速度较快的玩具带来了问题。预测能力最差的两个孩子是高危组中仅有的后来被诊断为患有脑瘫的两个孩子。
