Ferkauf Graduate School of Psychology, 184694Yeshiva University, Bronx, NY, USA.
Department of Neurology, Albert Einstein College of Medicine184694, Bronx, NY, USA.
J Aging Health. 2022 Oct;34(6-8):1062-1070. doi: 10.1177/08982643221087836. Epub 2022 Apr 27.
We examined whether individual differences in positive and negative affective states predicted dual-task costs using an established Dual-Task Walking protocol in non-demented older adults. We hypothesized that positive and negative affect would be associated with smaller and larger dual-task costs, respectively. Participants ( = 403; mean age = 76.22 ± 6.55; females = 56%) completed the Positive and Negative Affect Schedule and the walking protocol involving three conditions: Single-Task-Alpha, Single-Task-Walk (STW), and Dual-Task-Walk (DTW). Gait velocity was assessed via an instrumented walkway. Negative affect was associated with greater decline in gait velocity from STW to DTW (95% confidence interval [-0.73 to -0.03]) but not the decline of the rate of correct letter generation. There was no significant relationship between positive affect and DTW performance. Findings suggest negative affect is adversely associated with allocation of attentional resources, leading to worse mobility outcomes in older adults.
我们使用已建立的非痴呆老年人双重任务行走协议，研究积极和消极情感状态的个体差异是否可以预测双重任务成本。我们假设积极和消极情绪分别与较小和较大的双重任务成本相关。参与者（=403；平均年龄=76.22±6.55；女性=56%）完成了积极和消极情绪量表以及涉及三种情况的行走协议：单任务-阿尔法，单任务行走（STW）和双重任务行走（DTW）。通过仪器化步道评估步态速度。消极情绪与从 STW 到 DTW 的步态速度下降幅度更大相关（95%置信区间[-0.73 至-0.03]），但与正确字母生成率的下降无关。积极情绪与 DTW 表现之间没有显著关系。研究结果表明，消极情绪与注意力资源的分配呈负相关，导致老年人的移动能力结果更差。
