The purpose of the current study was to examine the associations between cognition, measured via the Digit Symbol Substitution Task, and subjective well-being (measured using the Satisfaction with Life Scale and the Positive and Negative Affect scale) in a community-based sample of middle-aged and older adults. Specifically, we examined both the cross-sectional and the longitudinal relationships between processing speed and subjective well-being. Data are from participants between 40-85 years-old (at baseline) who participated in the German Aging Survey across four waves. Results showed that processing speed was a weak but consistent predictor of positive affect, while age was associated with decreases in negative affect and positive affect, and increases in life satisfaction cross-sectionally. Conversely, cross-lagged panel analyses showed that the temporal relationship between processing speed and positive affect was close to zero, and non-significant. The results of this study shed additional light on the relationship between subjective well-being and cognition.

中文翻译：

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在德国老龄化调查中，将处理速度作为跨年龄和时间的主观幸福感的预测指标。

本研究的目的是研究通过数字符号替代任务衡量的认知与以社区为基础的样本中的主观幸福感（使用对生活的满意度量表和正负影响量表进行测量）之间的关联。中老年人。具体来说，我们研究了处理速度和主观幸福感之间的横截面和纵向关系。数据来自40-85岁之间的参与者（处于基线状态），他们参加了四次“德国老龄化调查”。结果表明，处理速度是积极影响的微弱但一致的预测指标，而年龄与消极影响和积极影响的降低以及生活满意度的提高有关。反过来，交叉滞后的面板分析表明，处理速度与积极影响之间的时间关系接近于零，并且不显着。这项研究的结果进一步揭示了主观幸福感与认知之间的关系。