Age-related differences in movement control: adjusting submovement structure to optimize performance.
Age-related differences in movement control: adjusting submovement structure to optimize performance.
复制标题
与年龄相关的运动控制差异：调整子运动结构以优化表现。
DOI：
10.1093/geronb/52b.1.p40
复制
发表时间：
1997
期刊：
影响因子：
--
通讯作者：
Fisk,AD
中科院分区：
文献类型：
--
作者：
Walker,N;Philbin,DA;Fisk,AD
在这个实验中，老年人和年轻人比较了他们用机电鼠标定位光标的能力。运动的距离，目标的大小，以及对运动速度或准确性的相对强调被操纵。这项研究的目的是隔离和评估的影响，年龄相关的差异，噪音与力的比例，感知反馈效率，策略差异，并产生力的能力，作为解释年龄相关的差异，在运动控制。这是通过使用两种类型的运动任务，并通过分析运动性能，根据运动的阶段。研究表明，所有四个因素，当孤立的，是显着不同的两个年龄组。然而，在任务的组成部分，所有的因素都可以同时影响性能，年龄相关的性能差异小于噪声力比或感知效率的措施的差异。子运动结构的分析揭示了老年人如何通过调整子运动的速度和数量来补偿更大的噪音和更少的感知效率。这些研究结果进行了讨论，根据优化的子运动模型。
In this experiment older and younger adults were compared on their ability to position a cursor with an electromechanical mouse. Distance of the movement, size of the target, and relative emphasis on the speed or accuracy of the movement were manipulated. The study was designed to isolate and evaluate the effects of age-related differences in the noise-to-force ratio, perceptual feedback efficiency, strategy differences, and the ability to produce force as explanations for age-related differences in movement control. This was done by using two types of movement tasks and by analyzing movement performance according to stages of movement. The study showed that all four factors, when isolated, are significantly different for the two age groups. However, in the task component where all factors could simultaneously affect performance, the age-related difference in performance was less than the difference in either the measure of noise-to-force ratio or perceptual efficiency. Analysis of the submovement structure revealed how older adults compensated for the greater noise and less perceptual efficiency by adjusting the velocity and number of submovements. These findings are discussed in light of the optimized submovement model.
登录
查看更多内容
快速目标肢体运动：年龄差异和子运动的练习效果。
影响因子：
3.7
作者：
Pratt,J;Chasteen,AL;Abrams,RA
通讯作者：
Abrams,RA
人机交互中机电小鼠快速光标定位运动的时空特性
影响因子：
3.3
作者：
N. Walker;D. Meyer;J. Smelcer
通讯作者：
J. Smelcer
熟练记忆搜索能力发展中的衰老和个体差异。
影响因子：
3.7
作者：
Hertzog,C;Cooper,BP;Fisk,AD
通讯作者：
Fisk,AD
影响因子：
1.4
作者：
FREY P W;COLLIVER J A
通讯作者：
COLLIVER J A
信号、噪声、性能和寿命
影响因子：
3.3
作者：
A. Welford
通讯作者：
A. Welford