Healthy Brain Ageing Program, Brain and Mind Centre, The University of Sydney, NSW, Australia.
Central Clinical School, The University of Sydney, NSW, Australia.
J Int Neuropsychol Soc. 2020 Jan;26(1):86-96. doi: 10.1017/S1355617719000912.
With the rapid growth of the older population worldwide, understanding how older adults with mild cognitive impairment (MCI) use memory strategies to mitigate cognitive decline is important. This study investigates differences between amnestic and nonamnestic MCI subtypes in memory strategy use in daily life, and how factors associated with cognition, general health, and psychological well-being might relate to strategy use.
One hundred forty-eight participants with MCI (mean age = 67.9 years, SD = 8.9) completed comprehensive neuropsychological, medical, and psychological assessments, and the self-report 'Memory Compensation Questionnaire'. Correlational and linear regression analyses were used to explore relationships between memory strategy use and cognition, general health, and psychological well-being.
Memory strategy use does not differ between MCI subtypes (p > .007) despite higher subjective everyday memory complaints in those with amnestic MCI (p = .03). The most marked finding showed that increased reliance-type strategy use was significantly correlated with more subjective memory complaints and poorer verbal learning and memory (p < .01) in individuals with MCI. Moreover, fewer subjective memory complaints and better working memory significantly predicted (p < .05) less reliance strategy use, respectively, accounting for 10.6% and 5.3% of the variance in the model.
In general, the type of strategy use in older adults with MCI is related to cognitive functioning. By examining an individual's profile of cognitive dysfunction, a clinician can provide more personalized clinical recommendations regarding strategy use to individuals with MCI, with the aim of maintaining their day-to-day functioning and self-efficacy in daily life.
随着全球老年人口的快速增长，了解轻度认知障碍（MCI）老年人如何使用记忆策略来减轻认知能力下降非常重要。本研究调查了遗忘型和非遗忘型 MCI 亚型在日常生活中记忆策略使用方面的差异，以及与认知、一般健康和心理幸福感相关的因素与策略使用的关系。
148 名 MCI 患者（平均年龄=67.9 岁，标准差=8.9）完成了全面的神经心理学、医学和心理评估，以及自我报告的“记忆补偿问卷”。使用相关和线性回归分析来探讨记忆策略使用与认知、一般健康和心理幸福感之间的关系。
尽管遗忘型 MCI 患者的主观日常记忆抱怨更高（p=.03），但 MCI 亚型之间的记忆策略使用没有差异（p>.007）。最显著的发现表明，依赖型策略的使用增加与 MCI 个体的主观记忆抱怨更多和言语学习和记忆更差显著相关（p<.01）。此外，较少的主观记忆抱怨和更好的工作记忆显著预测（p<.05）依赖型策略使用减少，分别解释了模型中 10.6%和 5.3%的方差。
总体而言，MCI 老年人的策略使用类型与认知功能有关。通过检查个体认知功能障碍的特征，临床医生可以针对 MCI 个体提供更个性化的策略使用临床建议，旨在维持他们在日常生活中的日常功能和自我效能感。
