Spiegler B J, Yeni-Komshian G H
Neuropsychologia. 1983;21(6):651-9. doi: 10.1016/0028-3932(83)90063-5.
Hand preference data were obtained for 1816 university students, 4793 siblings and 3632 parents. Results support the following conclusions. (1) There is currently a 13.8% incidence of left handedness among young adults, representing a dramatic increase over past generations. (2) Left and right-handed respondents do not differ in terms of familial sinistrality. (3) Mother's left-handedness is associated with an increase in the incidence of sinistrality for sons and daughters, while father's left handedness is related only to sons.
我们获取了1816名大学生、4793名兄弟姐妹以及3632名父母的用手偏好数据。结果支持以下结论。(1)目前,年轻人中左利手的发生率为13.8%,与过去几代人相比有显著增加。(2)左利手和右利手的受访者在家族性左利方面没有差异。(3)母亲的左利手与子女左利发生率的增加有关,而父亲的左利手仅与儿子有关。