Beyond dual systems: A genetically-informed, latent factor model of behavioral and self-report measures related to adolescent risk-taking
Beyond dual systems: A genetically-informed, latent factor model of behavioral and self-report measures related to adolescent risk-taking
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DOI：
10.1016/j.dcn.2016.12.007
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发表时间：
2017-06-01
影响因子：
4.7
通讯作者：
Tucker-Drob, Elliot M.
中科院分区：
文献类型：
--
作者：
Harden, K. Paige;Kretsch, Natalie;Tucker-Drob, Elliot M.
双系统模型认为，青少年的冒险行为是认知控制系统和激励处理系统失衡的结果。有兴趣了解青少年冒险行为发展的研究人员使用了各种各样的行为和自我报告的措施，以指数认知控制和激励处理。目前尚不清楚通常被解释为同一心理结构指标的不同措施实际上是否挖掘了个体差异的相同潜在维度。在一个多样化的样本810青少年双胞胎和三胞胎（M年龄= 15.9岁，SD = 1.4岁）从得克萨斯州的双胞胎项目，我们调查了15个自我报告和任务为基础的措施有关的青少年冒险的因素结构。这些指标可以分为四个因素，我们将其标记为预谋、无畏、认知失控和奖励寻求。大多数行为措施包含大量的任务特定的方差，但是，在每个措施中的大多数遗传方差与其他措施的相应因素。行为遗传学分析进一步表明，遗传对认知控制障碍的影响与遗传对智商的影响几乎完全重叠（r（A）= -0.91）。这些发现强调了单独使用单一实验室任务的局限性，并表明青少年冒险行为的研究将受益于应用多方法的方法。(c)2017作者爱思唯尔有限公司出版
The dual systems model posits that adolescent risk-taking results from an imbalance between a cognitive control system and an incentive processing system. Researchers interested in understanding the development of adolescent risk-taking use a diverse array of behavioral and self-report measures to index cognitive control and incentive processing. It is currently unclear whether different measures commonly interpreted as indicators of the same psychological construct do, in fact, tap the same underlying dimension of individual differences. In a diverse sample of 810 adolescent twins and triplets (M age = 15.9 years, SD = 1.4 years) from the Texas Twin Project, we investigated the factor structure of fifteen self-report and task-based measures relevant to adolescent risk-taking. These measures can be organized into four factors, which we labeled premeditation, fearlessness, cognitive dyscontrol, and reward seeking. Most behavioral measures contained large amounts of task-specific variance; however, most genetic variance in each measure was shared with other measures of the corresponding factor. Behavior genetic analyses furtherindicated that genetic influences on cognitive dyscontrol overlapped nearly perfectly with genetic influences on IQ (r(A)= -0.91). These findings underscore the limitations of using single laboratory tasks inisolation, and indicate that the study of adolescent risk taking will benefit from applying multimethod approaches. (c) 2017 The Authors. Published by Elsevier Ltd.