据美国《科学》杂志报道,加州大学的心理学家们发现,在智力发育上,喜欢使用某一只手的女婴,要比那些两只手都使用的女婴智力发展快一些。男婴则没有这种现象。这是对118名儿童从18个月起到第42个月,每六个月进行一次 According to a report in the U.S. Science, psychologists at the University of California found that, in their intellectual development, girls who prefer to use one hand have a higher IQ than those who use both hands. Baby boy does not have this phenomenon. This is done for 118 children from 18 months to 42 months every six months