CAJ | 학술논문

目的：双生子法探索遗传与环境对儿童青少年智力发育的影响。方法以学籍登记为线索在重庆市募集6～18岁共同生活的双生子190对，采集颊黏膜、血液标本提取DNA ，进行卵型鉴定。采用中国修订版-韦氏儿童智力量表（C-WISC）评定双生子的智力特点，用组内相关系数法计算各智力指标的遗传度。结果6～18岁儿童总智商遗传度为0．63，其中言语智商为0．44，操作智商为0．57；10～14岁和15～18岁儿童总智商遗传度（0．78、0．79）较6～9岁儿童总智商遗传度（0．018）大。结论6～18岁儿童智力受遗传与环境的共同作用，随着年龄的增长智力发育受遗传的影响越来越大。
목적：쌍생자법탐색유전여배경대인동청소년지력발육적영향。방법이학적등기위선색재중경시모집6～18세공동생활적쌍생자190대，채집협점막、혈액표본제취DNA ，진행란형감정。채용중국수정판-위씨인동지역량표（C-WISC）평정쌍생자적지력특점，용조내상관계수법계산각지력지표적유전도。결과6～18세인동총지상유전도위0．63，기중언어지상위0．44，조작지상위0．57；10～14세화15～18세인동총지상유전도（0．78、0．79）교6～9세인동총지상유전도（0．018）대。결론6～18세인동지력수유전여배경적공동작용，수착년령적증장지력발육수유전적영향월래월대。
Objective Using twins methods to explore the influence of genetic and environmental factor on Intelligence develop-ment of children and adolescent twins .Methods It was 190 pair of twins aged 6 to 18 who lived in Chongqing were recruited ,DNA were extracted from buccal mucosa and venous blood samples to identify zygosity .The intelligence was investigated by using the Wechsler Intelligence Scale for Children(C-WISC) ,the intrapair correlation coefficients of twins were compared and calculate the genetic degrees .Results The total IQ of children aged 6 to 18 heritability were 0 .63 ,Verbal IQ were 0 .44 ,Performance IQ were 0 .57 .The total IQ heritability of children aged 10 to 14 and 15 to 18 years(0 .78 ,0 .79) were higher than that of those aged from 6 to 9 years(0 .018) .Conclusion This study suggested the intelligence of children aged 6 to 18 affected by genetic and environment , and the older ,the more influence of genetic on intelligence development .