Worden Timothy A, Vallis Lori Ann
a Department of Human Health and Nutritional Sciences , University of Guelph , Ontario , Canada.
J Mot Behav. 2014;46(5):357-68. doi: 10.1080/00222895.2014.914887. Epub 2014 Jun 10.
The performance of 2 or more attention demanding tasks simultaneously is poorly understood. The purpose of the study was to investigate optimal practice strategies for performing 2 simultaneous tasks. Eighteen young adults walked and stepped over either a static or dynamic obstacle, while responding to an auditory Stroop test. Participants were randomly assigned to 1 of 3 groups: one that practiced both tasks simultaneously, practiced only the cognitive task, or received no practice. Results indicate that only the dual-task practice group showed significantly more improvement in the locomotor task through reduced variability of gait velocity, obstacle clearance, and takeoff distance. Findings demonstrate that the practice of two concurrent, attention demanding tasks results in the best performance improvement for both tasks.
同时执行两项或更多需要注意力的任务的表现目前还知之甚少。本研究的目的是调查执行两项同时进行的任务的最佳练习策略。18名年轻人在对听觉斯特鲁普测试做出反应的同时，走过并跨过一个静态或动态障碍物。参与者被随机分配到3组中的一组：一组同时练习两项任务，一组只练习认知任务，或一组不进行练习。结果表明，只有双任务练习组通过降低步态速度、障碍物跨越和起跳距离的变异性，在运动任务中表现出显著更大的进步。研究结果表明，同时进行两项需要注意力的并发任务的练习会使两项任务的表现都得到最佳提升。
