THE DEVELOPMENT OF SPONTANEOUS BODY MOVEMENT IN PRENATAL AND PERINATAL MICE
THE DEVELOPMENT OF SPONTANEOUS BODY MOVEMENT IN PRENATAL AND PERINATAL MICE
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DOI：
10.1002/dev.420170205
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发表时间：
1984-01-01
影响因子：
2.2
通讯作者：
SEKIGUCHI, S
中科院分区：
文献类型：
--
作者：
KODAMA, N;SEKIGUCHI, S
产前和围产期行为发育的质和量的变化尚未得到充分研究。研究了 3 个品系小鼠（ICR、C3H 和 BALB）自发身体运动的发生情况以及 ICR 品系中通过 EMG [肌电图] 活动测量的脉冲计数。小鼠正常妊娠期为 19 天，在妊娠第 14 天首次出现简单的身体运动。胎儿时期，胎动由简单的动作转变为复杂、协调的动作。在 3 个品系的小鼠中没有发现这些运动发生时间的差异。围产期3种简单运动减少。这种下降受到分娩后肺呼吸开始的影响。围产期自发运动的时间跨度没有变化，而肌电图活动测量的脉搏计数随着年龄的增长而增加。
The qualitative and quantitative changes in behavioral development in the prenatal and perinatal periods have been insufficiently studied. The occurrence of spontaneous body movements in 3 strains of mice (ICR, C3H and BALB) and the pulse counts, measured by EMG [electromyographic] activity, in the ICR strain were studied. Simple body movement first appeared at the 14th day of gestation of the 19-day gestation period normal for mice. During the prenatal period, fetal movements changed from simple movements to complex and coordinated movements. Differences in the timing of the development of these movements were not found in the 3 strains of mice. During the perinatal period, the 3 kinds of simple movement decreased. This decrease was affected by the onset of pulmonary respiration after delivery. The time span of spontaneous movement did not change during the perinatal period, while the pulse counts measured by EMG activity increased with age.