Capute A J, Wachtel R C, Palmer F B, Shapiro B K, Accardo P J
Dev Med Child Neurol. 1982 Jun;24(3):314-20. doi: 10.1111/j.1469-8749.1982.tb13623.x.
In order to assess the evolution of postural reactions in the prone position, a group of 149 normal infants were followed from birth to two years of age. The Landau reflex was present in 44 per cent of two-month-old infants, and in 95 per cent at four months. The tonic labyrinthine response (grades 2 to 4) was seen in 80 per cent of infants at two weeks, with a marked diminution by the age of 24 months. In contrast, the symmetrical tonic neck reflex was detected in fewer than 30 per cent of the infants: the maximum prevalence was at four to six months of age. These findings are consistent with the hypothesis that the Landau is an early righting reflex which emerges after, and is independent of, the tonic labyrinthine response in prone and the symmetrical tonic neck reflex.
为了评估俯卧位姿势反应的发展，对一组149名正常婴儿从出生到两岁进行了跟踪研究。两个月大的婴儿中，44%出现了兰道反射，四个月大时这一比例为95%。两周大的婴儿中，80%出现了紧张性迷路反射（2至4级），到24个月大时明显减弱。相比之下，不到30%的婴儿检测到对称紧张性颈反射：最高发生率出现在四至六个月大时。这些发现与以下假设一致，即兰道反射是一种早期的翻正反射，它在俯卧位的紧张性迷路反射和对称紧张性颈反射之后出现，且与之无关。
