利手的研究是神经心理学的一项重要课题,是探索大脑奥秘,揭示某些神经、精神疾病病因,研究大脑两半球机能不对称性的一条途径。本世纪二十年代以来,国外对这个问题做了大量研究,不少国家已经掌握了国人的利手分布数据。我国从1980年起,由中国科学院心理研究所组织全国十几个单位搞协作,开始对我国正常人的利手分布情况进行研究,现已取得了积极的成果。然而,中国人的利手是怎样形成的?它在个体发育过程中是个怎样的变化过程?这在我国尚未见到有人报道。因此,我们认为通过1～7岁儿童进行抓物实验,对探索国人利手形成规律是有意义的。 Leishou research is an important issue in neuropsychology, is to explore the mysteries of the brain, revealing the cause of certain neurological, mental illness, study of the two hemispheres of the brain function of asymmetry as a way. Since the 1920s, a great deal of research has been done on this issue abroad, and quite a few countries have mastered the distribution figures of the people in favor of the people. Since 1980, China has organized more than a dozen units nationwide by the Institute of Psychology of the Chinese Academy of Sciences to begin research on the distribution of the beneficial hand of normal people in our country. We have achieved positive results. However, what is the formation of the advantage of the Chinese? What is the process of change in the development of the individual? This has not yet been seen in our country. Therefore, we think that it is significant to explore the law of formation by the hand of a child aged 1 ~ 7 years.