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目的对4个月婴儿左利手与右利手倾向进行鉴别研究。方法本文设计了一个婴儿触拿玩具的实验,通过观察婴儿习惯性使用右手与左手操作玩具的动作次数、效果,鉴别婴儿是左利手倾向还是右利手倾向。结果左手与右手分别触拿玩具的次数有显著性差异。结论在婴儿成长到120天左右可以鉴别出婴儿的左利手与右利手倾向。
Objective To compare the tendency of left hand and right hand of 4 months baby. Methods This paper designed a baby touch the toy experiment, by observing the baby habitual use of the right hand and left hand to operate the toys the number of times, the effect of identifying the baby is left hand tendency or right hand tendency. The results of the left hand and right hand touch the number of toys were significantly different. Conclusion Infant’s tendency to turn left and right hand can be identified when the baby grows to about 120 days.