Higher-order genetic and environmental structure of prevalent forms of child and adolescent psychopathology.

Higher-order genetic and environmental structure of prevalent forms of child and adolescent psychopathology.
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DOI:
10.1001/archgenpsychiatry.2010.192
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发表时间:
2011-02
影响因子:
--
通讯作者:
Rathouz, Paul J.
Rathouz, Paul J.
中科院分区:
其他
文献类型:
--
作者:
Lahey, Benjamin B.;Van Hulle, Carol A.;Singh, Amber L.;Waldman, Irwin D.;Rathouz, Paul J.

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有必要了解儿童和青少年精神病理学的病因结构,以推进理论和指导未来的研究。使用遗传和环境协方差的验证性因素分析,对儿童和青少年精神病理学的11个维度的病因影响的高级结构的替代模型进行检验。具有代表性的双胞胎样本。1571对9-17岁的双胞胎。家庭访谈。使用成人照顾者和青少年作为告密者的精神病理学的结构化评估。最适合的遗传模型显示,大多数遗传因素非特异性地影响所有11个症状维度或两个广泛领域中的精神病理学维度的风险。除了一些值得注意的例外,维度特定的遗传影响解释了适度的差异。为了提供理论信息和指导分子遗传学研究,提出了一个病因学模型,在该模型中,假设三种多效性模式是常见形式的儿童和青少年精神病的主要遗传风险传递方式。研究发现了一些常见的环境影响,但与“通才基因,专业环境”模型一致,很少有环境影响的共享。这意味着,儿童和青少年精神病理学的流行维度大多共享他们的遗传责任,但通过不共享的经历来区分。
It is necessary to understand the etiologic structure of child and adolescent psychopathology to advance theory and guide future research. To test alternative models of the higher-order structure of etiologic influences on 11 dimensions of child and adolescent psychopathology using confirmatory factor analyses of genetic and environmental covariances. Representative sample of twins. 1,571 pairs of 9-17 year old twins. Home interviews. Structured assessments of psychopathology using adult caregivers and youth as informants. The best-fitting genetic model revealed that most genetic factors nonspecifically influence risk for either all 11 symptom dimensions or for dimensions of psychopathology within one of two broad domains. With some notable exceptions, dimension-specific genetic influences accounted for modest amounts of variance. To inform theory and guide molecular genetic studies, an etiologic model is offered in which three patterns of pleiotropy are hypothesized to be the principal modes of genetic risk transmission for common forms of child and adolescent psychopathology. Some common environmental influences were found, but consistent with a “generalist genes, specialist environments” model, there was little sharing of environmental influences. This implies that prevalent dimensions of child and adolescent psychopathology mostly share their genetic liabilities but are differentiated by nonshared experiences.
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