Neuropsychology Service, Department of Psychiatry and Behavioral Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
Arch Clin Neuropsychol. 2022 Oct 19;37(7):1555-1563. doi: 10.1093/arclin/acac029.
Attention, inhibition, and processing speed are related to functional decline among older adults. This study attempts to clarify the relationships between these cognitive factors and adaptive functioning.
We examined relationships between attention, inhibition, and processing speed, with scores on the Texas Functional Living Scale (TFLS), a performance-based measure of daily functioning, in a mixed clinical sample of 530 older adults who were referred for an outpatient neuropsychological evaluation.
The current study used a confirmatory factor analysis (CFA) to derive a three-factor cognitive model consisting of attention, inhibition, and processing speed. Results from a hierarchical regression, which included factor scores from the CFA, revealed that processing speed was the only significant predictor of TFLS performance when all three cognitive factors were included within a single model.
These results highlight the influence of processing speed as an important indicator of functional decline among a clinical population of older adults.
注意力、抑制和处理速度与老年人的功能下降有关。本研究试图阐明这些认知因素与适应功能之间的关系。
我们研究了注意力、抑制和处理速度与德克萨斯州功能生活量表（TFLS）得分之间的关系，TFLS 是一种基于表现的日常功能测量方法，研究对象为 530 名因门诊神经心理评估而被转介的老年混合临床样本。
本研究使用验证性因素分析（CFA）得出了一个由注意力、抑制和处理速度组成的三因素认知模型。在将三个认知因素都包含在一个单一模型中时，来自包括 CFA 因子得分的层次回归的结果表明，处理速度是 TFLS 表现的唯一显著预测因子。
这些结果强调了处理速度作为临床老年人群功能下降的重要指标的影响。
