语言发展不同方面的遗传影响：4.5岁双胞胎语言技能的病因学
Genetic influences in different aspects of language development: the etiology of language skills in 4.5-year-old twins.
作者信息
Kovas Yulia, Hayiou-Thomas Marianna E, Oliver Bonamy, Dale Philip S, Bishop Dorothy V M, Plomin Robert
机构信息
Social, Genetic, and Developmental Psychiatry, Institute of Psychiatry, London. England.
出版信息
Child Dev. 2005 May-Jun;76(3):632-51. doi: 10.1111/j.1467-8624.2005.00868.x.
The genetic and environmental etiologies of diverse aspects of language ability and disability, including articulation, phonology, grammar, vocabulary, and verbal memory, were investigated in a U.K. sample of 787 pairs of 4.5-year-old same-sex and opposite-sex twins. Moderate genetic influence was found for all aspects of language in the normal range. A similar pattern was found at the low end of the distribution with the exception of two receptive measures. Environmental influence was mainly due to nonshared factors, unique to the individual, with little influence from shared environment for most measures. Genetic and environmental influences on language ability and disability are quantitatively and qualitatively similar for males and females.
在一个由787对4.5岁同性和异性双胞胎组成的英国样本中，研究了语言能力和语言障碍的不同方面（包括发音、音系学、语法、词汇和言语记忆）的遗传和环境病因。发现正常范围内语言的所有方面都有中等程度的遗传影响。在分布的低端也发现了类似的模式，但有两项接受性测量除外。环境影响主要归因于个体独有的非共享因素，对于大多数测量而言，共享环境的影响很小。男性和女性在语言能力和语言障碍方面的遗传和环境影响在数量和质量上相似。
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