ABSTRACT

Using the bivariate dual change score approach, the present study investigated the directionality of the SMC-OMP association in a sample of healthy older adults (N = 2,057) from the Virginia Cognitive Aging Project. The sample was assessed throughout 10 years, five time points, and the impact of education, depressive symptoms, and low-memory functioning was tested. The Memory Functioning Questionnaire was used to assess SMC. There was a lack of longitudinal association with no significant coupling effects found between subjective and objective memory. After including depressive symptoms as a covariate, Frequency of Forgetting significantly predicted subsequent negative changes in OMP . A similar result was found for the low-memory functioning group after the inclusion of depression, with the frequency of memory complaints predicting subsequent memory decline . Our results do not support a predictive value of SMC without accounting for the influence of depressive symptoms and low-memory functioning.

摘要

本研究使用双变量双变化评分方法，调查了来自弗吉尼亚认知老化项目的健康老年人样本 (N = 2,057) 中 SMC-OMP 关联的方向性。对样本进行了 10 年、五个时间点的评估，并测试了教育、抑郁症状和低记忆力功能的影响。记忆功能问卷用于评估 SMC。缺乏纵向关联，主观和客观记忆之间没有发现显着的耦合效应。将抑郁症状作为协变量后，遗忘频率显着预测了 OMP 的后续负变化。在纳入抑郁症后，低记忆功能组也发现了类似的结果，记忆力下降的频率预示着随后的记忆力下降。如果不考虑抑郁症状和低记忆功能的影响，我们的结果不支持 SMC 的预测价值。