目的:了解贵州[亻革]家人不对称行为特征的分布特点,为人类群体遗传学研究积累资料。方法:采用遗传学界公认的方法对412名(男217,女195)生活在贵州的[亻革]家人7项不对称行为特征(利眼、扣手、利手、利足、叠臂、叠腿、起步类型)进行活体观察。调查对象年龄7~55岁,三代均为[亻革]家人。结果:(1)7项不对称行为特征的出现率右型高于左型;(2)除利眼外,其他特征的出现率男女间差异不明显;(3)扣手与利眼、扣手与利手、扣手与利足、扣手与叠臂、利手与利足、利手与叠腿、利手与起步类型、利足与叠腿之间存在相关性,并具有同侧组合特征(除扣手与利眼外),且均以右-右型组合居多;(4)与我国其他19个民族群体7项不对称行为特征聚类分析的结果显示:[亻革]家人与贵州汉族最为接近,与湖南侗族、靖州苗族和凤凰苗族次之,与内蒙古蒙古族、达斡尔族、朝鲜族、回族、鄂伦春族和天津汉族较远。结论:[亻革]家人7项不对称行为特征多为右型,特征出现率男女间差异多不显著,特征间具有一定相关性,同侧组合特征类型为其亲和特征。
Objective:To understand the distribution characteristics of behavioral traits of lateral func-tional dominance of Gejia people in Guizhou,and to collect a wealth of data for the study of human population genetics.Methods:In June 201 0,a sample of 41 2 cases (21 7 males,1 95 females)aged between 7 and 55 years old was investigated on 7 behavioral traits of lateral functional dominance (eye preference,hand clas-ping,handedness,foot preference,arm folding,leg folding and stride type ) of Gejia people living in Guizhou.Parents,grandparents and maternal grandparents were studied.Results:(1 ) The frequencies of right type on the 7 traits of Gejia people were much higher than those of left type;(2)There was no sexual difference in Gejia people on the 7 traits except eye preference; (3 ) There was significant correlation be-tween hand clasping and eye preference,hand clasping and handedness,hand clasping and foot preference, hand clasping and arm folding,handedness and foot preference,handedne