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《Chinese Mental Health Journal》 2009-03
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Genetic Effects on Intelligence in Sexual Development of Children

ZHANG Yue1,JI Cheng-Ye1,BAI Yan2,XU Yi-Qun1,XIONG Ni-Na1,Wang Hua2,Wang Jia11Institute of Child and Adolescence Health,Peking University,Beijing 1001912Elementary and High school's Student Health Care,Shijingshan District,Beijing 100041  
Objective:To explore the genetic and environmental influences on intelligence in puberty.Methods:One hundred and eight twin pairs,aged 11 to 15,were evaluated for their intelligence quotient(IQ),verbal intelligence quotient(VIQ) and program intelligence quotient(PIQ) with the Wechsler Intelligence Scale for Children-Chinese Revised(WISC-CR).The menarche and spermarche were used as the indicators of sexual development.The intra-class correlation coefficient method was used to estimate the heritabilities of intelligence indicators.Results:The estimated heritability of VIQ in pre-sexual development group was higher than that in sexual development group(0.7710 vs.0.3960).The heritability of PIQ in pre-sexual development group was lower than that in sexual development group(0.0837 vs.0.4908).The heritability of IQ in pre-sexual and sexual development groups were 0.3502 and 0.3977,respectively.Conclusion:Genetic factors have significant influences on VIQ and PIQ in the process of puberty,but the increase trend for IQ still need to be proven.
【Fund】: 国家自然科学基金(30371223)
【CateGory Index】: R749.94
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