Executive Function in Daily Life: Age-Related Influences of Executive Processes on Instrumental Activities of Daily Living
Executive Function in Daily Life: Age-Related Influences of Executive Processes on Instrumental Activities of Daily Living
复制标题
DOI：
10.1037/a0017729
复制
发表时间：
2010-06-01
影响因子：
3.7
通讯作者：
Giovanello, Kelly
中科院分区：
文献类型：
--
作者：
Vaughan, Leslie;Giovanello, Kelly
本研究采用结构方程模型（SEM）考察了老年人执行功能（EF）的3个执行过程（抑制、任务转换、工作记忆更新）与2种工具性日常生活活动（IADL）（自我报告、基于绩效）之间的关系。实验任务的执行注意和自我报告或基于性能的IADL测试管理，以创建潜在的结构EF和IADL。采用验证性因素分析（CFA）检验EF和IADL的结构效度。该分析表明，抑制，更新和任务转换的3因素模型和自我报告和基于性能的IADL的2因素模型。正如预测的那样，当潜变量关系进行分析，执行过程有一个显着的关系，以业绩为基础，但不自我报告。IADL。此外，任务转换与基于成绩的IADL之间存在显著的相关关系。这项研究的结果独特地显示了执行过程和基于性能的IADL之间的直接关系，从而证明了生态效用的实验措施EF预测日常功能。此外，这些结果指出了认知训练的领域，可能会战略性地影响老年人在日常生活活动中的表现。
The present study of older adults used structural equation modeling (SEM) to examine the relationships between 3 executive processes underlying executive function (EF) (inhibition, task switching, updating in working memory), and 2 types of instrumental activities of daily living (IADLs) (self-report, performance based). Experimental tasks of executive attention and self-report or performance-based IADL tests were administered to create latent constructs of EF and IADLs. Confirmatory factor analysis (CFA) was used to examine the construct validity of EF and IADLs. This analysis indicated a 3-factor model of inhibition, updating, and task switching and a 2-factor model of self-report and performance-based IADLs. As predicted, when the latent variable relationships were analyzed, executive processes had a significant relationship with performance-based, but not self-report. IADLs. In addition, task switching had a strong and significant relationship with performance-based IADLs. The results of this study uniquely show a direct relationship between executive processes and performance-based IADLs, thus demonstrating the ecological utility of experimental measures of EF to predict daily function. Furthermore, these results point to areas of cognitive training that may strategically impact older adults' performance on daily life activities.