The etiology of observed negative emotionality from 14 to 24 months.
The etiology of observed negative emotionality from 14 to 24 months.
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DOI：
10.3389/fgene.2012.00009
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发表时间：
2012
影响因子：
3.7
通讯作者：
Young SE
中科院分区：
文献类型：
--
作者：
Rhee SH;Corley RP;Friedman NP;Hewitt JK;Hink LK;Johnson DP;Robinson J;Smith AK;Young SE
我们研究了遗传和环境对14、20和24个月大时观察到的负面情绪的影响程度。参与者是从纵向双胞胎研究中招募的403对同性双胞胎，他们对四种不同情况的情绪反应由独立评分员编码。消极情绪表现出显着的一致性设置，并有证据表明潜在的潜在的消极情绪结构。从14岁到24个月，潜在的负面情绪结构的遗传性下降，共享的环境影响的幅度增加。在14岁，20岁和24个月时评估的负面情绪之间存在显着相关性，结果表明共同的遗传和共享的环境影响会影响整个年龄的负面情绪，并且特定年龄的影响仅限于非共享的环境影响，其中包括测量误差。
We examined the magnitude of genetic and environmental influences on observed negative emotionality at age 14, 20, and 24 months. Participants were 403 same-sex twin pairs recruited from the Longitudinal Twin Study whose emotional responses to four different situations were coded by independent raters. Negative emotionality showed significant consistency across settings, and there was evidence of a latent underlying negative emotionality construct. Heritability decreased, and the magnitude of shared environmental influences increased, for the latent negative emotionality construct from age 14 to 24 months. There were significant correlations between negative emotionality assessed at age 14, 20, and 24 months, and results suggested common genetic and shared environmental influences affecting negative emotionality across age, and that age-specific influences are limited to non-shared environmental influences, which include measurement error.