Bunce David, Tzur Maya, Ramchurn Anusha, Gain Felicity, Bond Frank W
Centre for Cognition and Neuroimaging, Brunel University, Uxbridge, West London, United Kingdom.
J Gerontol B Psychol Sci Soc Sci. 2008 Mar;63(2):P67-74. doi: 10.1093/geronb/63.2.p67.
We investigated mental health and cognitive function in 195 community-dwelling adults aged 18 to 92 years (M = 46.64). We assessed several cognitive domains, including psychomotor, executive function, and episodic memory. We found a significant Age x Mental Health interaction in relation to within-person (WP) variability (trial-to-trial variability in reaction time performance) in a four-choice psychomotor task and a Stroop task, but not in relation to mean reaction time measures from those tasks. Poorer mental health was associated with greater WP variability in older adults. We did not find this effect in relation to memory. The findings suggest that measures of WP variability may be sensitive to relatively subtle effects associated with age and poor mental health, and that they provide valuable insights into cognitive function in old age.
我们对195名年龄在18至92岁（平均年龄M = 46.64岁）的社区居住成年人的心理健康和认知功能进行了调查。我们评估了几个认知领域，包括心理运动、执行功能和情景记忆。我们发现，在四项选择心理运动任务和Stroop任务中，就个体内（WP）变异性（反应时间表现的逐次试验变异性）而言，年龄与心理健康存在显著交互作用，但与这些任务的平均反应时间测量结果无关。心理健康较差与老年人中更大的WP变异性相关。在记忆方面我们未发现这种效应。研究结果表明，WP变异性测量可能对与年龄和心理健康不佳相关的相对细微的影响敏感，并且它们为老年认知功能提供了有价值的见解。
Zotero 插件