Executive functioning in healthy elderly Chinese people
Executive functioning in healthy elderly Chinese people
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DOI：
10.1016/j.acn.2007.01.028
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发表时间：
2007-05-01
影响因子：
2.6
通讯作者：
Wang, Ya
中科院分区：
文献类型：
--
作者：
Lin, Han;Chan, Raymond C. K.;Wang, Ya
本研究旨在探讨中国健康老年人的执行功能。在中国广州招募了58名60岁及以上的健康中国人。他们被分为两个年龄组，一个是年轻年龄组（60-70岁），另一个是老年年龄组（70岁以上）。执行功能是通过一组七项测试来测量的，这些测试被认为是捕获执行功能的特定组件。测试内容包括启动（HSC）、持续注意（单调计数测验）、转换和灵活性（词汇流畅性和改良威斯康星州卡片分类测验）、去抑制（改良六元素任务（SET）、Stroop测验和HSC）、注意分配和计划（SET和改良版WCST）和更新（中文字母-数字广度）。当分析独立的神经认知测试时，WCST（持续错误和完成的类别，p=0.025，0.023）和SET（原始评分，p = 0.050）存在显著的年龄差异。年龄较大的组在SET的总分和HSC A部分的正确回答方面往往表现较差。然而，当这些测试被分组为特定的执行功能组件，一个显着差异，发现两组之间的注意力分配和规划（p = 0.007）和总组件得分（p = 0.026）。回归分析还表明，在这一狭窄的老年人群体中，年龄只占执行功能的很小一部分，而教育水平占启动差异的很大一部分（R-2 = 0.252，p < 0.001）、转换和灵活性（R-2 = 0.211，p < 0.001）以及更新（R-2 = 0.236，p < 0.001）执行功能成分。我们的研究结果表明，随着年龄的增长，一般执行功能的显着下降，只有在这个样本中的一些假定的测试是明显的。此外，执行功能选择性地受到老年人的影响，注意力的位置和规划和启动是最受影响的组成部分。(c)2007年美国国家神经心理学学会。由爱思唯尔有限公司出版。保留所有权利。
This study aimed to explore the executive function of healthy elderly Chinese people. A sample of 58 healthy Chinese aged 60 and over was recruited from Guangzhou in China. They were divided into two age groups, a younger age group (aged 60-70) and an older age group (aged over 70). Executive function was measured by a battery of seven tests which were assumed to capture specific components of executive function. The tests were initiation (Hayling Sentence Completion Test (HSC), sustained attention (Monotone Counting Test), switching and flexibility (word fluency and modified Wisconsin Card Sorting Test (WCST)), disinhibition (Modified Six Element Task (SET), Stroop Test, and HSC, attention allocation and planning (SET and modified version of WCST), and updating (Chinese Letter-Number Span). When independent neurocognitive tests were analyzed, there were significant age differences in the WCST (perseverative errors and category completed, p=0.025, 0.023) and the SET (raw score, p = 0.050). The older age group tended to do worse in the total profile score of the SET and correct responses of the HSC Part A. However, when these tests were grouped into specific executive function components, a significant difference was found between the two groups in attention allocation and planning (p = 0.007) and total component score (p = 0.026). Regression analyses also indicated that age accounted for only very little variance of executive function in this narrow band of the elderly, whereas educational level accounted for a large part of the variance in initiation (R-2 = 0.252, p < 0.001), switching and flexibility (R-2 = 0.211, p < 0.001), and updating (R-2 = 0.236, p < 0.001) components of executive function. Our findings suggest that a significant decline in general executive functioning with advancing age was only evident in some putative tests in this sample. In addition, executive functions were selectively affected by older age, with attention location and planning and initiation being the components that were most affected. (c) 2007 National Academy of Neuropsychology. Published by Elsevier Ltd. All rights reserved.