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Understanding the Role of Conscientiousness in Healthy Aging: Where Does the Brain Come In?

机译：了解尽责在健康的衰老中的作用：大脑从何而来？

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In reviewing this impressive series of articles, I was struck by 2 points in particular: (a) the fact that the empirically oriented articles focused on analyses of data from very large samples, with the articles by Friedman, Kern, Hampson, and Duckworth (2014) and Kern, Hampson, Goldbert, and Friedman (2014) highlighting an approach to merging existing data sets through use of "metric bridges" to address key questions not addressable through 1 data set alone, and (b) the fact that the articles as a whole included limited mention of neuroscientific (i.e., brain research) concepts, methods, and findings. One likely reason for the lack of reference to brain-oriented work is the persisting gap between smaller sample size lab-experimental and larger sample size multivariate-correlational approaches to psychological research. As a strategy for addressing this gap and bringing a distinct neuroscientific component to the National Institute on Aging's conscientiousness and health initiative, I suggest that the metric bridging approach highlighted by Friedman and colleagues could be used to connect existing large-scale data sets containing both neurophysiological variables and measures of individual difference constructs to other data sets containing richer arrays of nonphysiological variables-including data from longitudinal or twin studies focusing on personality and health-related outcomes (e.g., Terman Life Cycle study and Hawaii longitudinal studies, as described in the article by Kern et al., 2014).
机译：在回顾这一系列令人印象深刻的文章时，我特别被两点打动：（a）以经验为导向的文章着重于分析非常大样本数据的事实，Friedman，Kern，Hampson和Duckworth的文章（ （2014年）以及Kern，Hampson，Goldbert和Friedman（2014年）着重介绍了一种通过使用“度量标准桥”来合并现有数据集的方法，以解决仅靠1个数据集无法解决的关键问题，以及（b）总体而言，仅提及神经科学（即大脑研究）的概念，方法和发现。缺乏以脑为导向的工作的一个可能原因是，较小的实验室实验样本数量和较大的心理学研究样本数量多元相关方法之间仍然存在差距。作为解决这一差距并为美国国立衰老研究院的尽职调查与健康计划带来独特的神经科学组成部分的策略，我建议弗里德曼及其同事强调的度量桥接方法可用于连接既包含神经生理学又包含神经学的大型数据集变量和个体差异结构的度量，以及包含非生理变量丰富数组的其他数据集，包括来自针对性格和健康相关结果的纵向或孪生研究（例如，本文所述的Terman生命周期研究和Hawaii纵向研究）由Kern等人，2014年）。

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