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绝大多数孩子都是习惯于用右手抓东西,用右手写字、画画,但是也会有个别的孩子喜欢反其道而行之,习惯于多用左手。在心理学上,前者称为“右手性”,后者则被叫做“左手性”。左手性者就是我们平常所说的“左撇子”。造成左手性的原因很复杂,但有一点可以肯定:它与遗传不无关系。美国心理学家张伯伦(Chamberlain)曾在俄亥俄州立大学作过一次调查,对象是2177名大学一年级学生。调查结果表明,左撇子与其父母的手性情况有着密切联系。父亲是左手性的,其子女是左手性的占9%强;母亲是左手性的,其子女也是左手性的占13%;父母都是左手性的则其子女同样是左手性的竟占到46%!而父母都是右手性的,那么他们的子女便很少会是
Most children are accustomed to using the right hand to grasp things, use the right hand to write, draw, but there will be individual children like to do the opposite, used to use the left hand. In psychology, the former is called “right hand” and the latter is called “left hand.” Left-handedness is what we usually call “left-handed”. The reason for left-handedness is complicated, but one thing is certain: it’s not unrelated to heredity. Chamberlain, a U.S. psychologist who conducted a survey at Ohio State University, is targeting 2177 first-year college students. The findings show that left-handed individuals are closely linked to the chirality of their parents. His father is left-handed, his children are left-handed accounted for 9% strong; mother is left-handed, his children are left-handed accounted for 13%; parents are left-handed, then their children are also left-handed actually accounted for 46%! And parents are right-handed, then their children will rarely be