Neonatal learnibg Ability and Mechanism of mother-Infant Relationship Based on Fetal Memory

本研究通过胎儿记忆与学习的一系列实验，探讨胎儿记忆与新生儿学习能力、母婴关系之间的关系。以2日龄新生SIc: ICR小鼠为研究对象。他们被测试了对母亲乳头的偏好，乳头上涂有味道/气味刺激（羊水和生理盐水），以及他们自己的母亲。在刺激偏好测试中，新生幼崽首先与自己的母亲分开三个小时，然后进行测试。在用镇静剂麻醉母亲后，一只小狗被放在她面前。在母性偏好试验中，本代母性和外来母性同时麻醉。然后在他们之间放了一只小狗。幼崽更喜欢涂有羊水的乳头和它们自己的母亲。这些结果表明，2日龄幼鼠对胎儿时期在母体内所经历的羊水特征有记忆，对母鼠的选择是基于记忆，出生后对母鼠的刺激特征有记忆。

This study was conducted as a series of experiments in fetal memory and learning in order to investigate the relationship between fetal memory and learning ability of the newborn, and mother-infant bond.The 2-day-old newborns of SIc : ICR mice were used as subjects. they were tested the preference to the mother's nipple, with which the taste/odor stimulus (amniotic fluid and saline) was coated, and their own mother. In stimulus preference test, newborn pups were first separated to their own mother for three hours for hunger then subjected to the test. After the mother was anesthetized with nembutal, a pup was placed in front of her. In maternal preference test, own mother of pups and alien mother were anesthtized with nembutal simultaneously. Then a pup was placed between them.The pups preferred the nipple which was coated with amniotic fluid, and their own mother. These results indicate that the 2-day-old newborn pups remember the characteristics of amniotic fluid which they experienced in the wonb in fetal period, that they choose their mother based on the memory, and that they remember the stimulus characteristics of their own mother after birth.