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当运动前和运动期间呈现目标范围时,就会发生违反Fitts定律的情况
Quinn Malone1, Chris J McNeil2, Steven R Passmore3
1School of Health and Exercise Sciences, University of British Columbia: Okanagan, ART360 (Arts Building), 1147 Research Road, Kelowna, BC, V1V 1V7, Canada. maloneq@student.ubc.ca.
Experimental brain research
|August 31, 2023
概括
菲茨定律指出,随着距离的增长,运动时间的增加,当目标出现在射程内时,就被违反了. 这表明数组边缘的认知处理影响了运动速度,支持了这个假设.
科学领域:
- 人与计算机的交互
- 认知心理学 认知心理学
- 发动机控制器的控制器
背景情况:
- 菲茨定律预测运动时间 (MT) 随着目标距离的增加而增加.
- 当最远和前后目标的MT相似时,会发生违规行为,这可能是由于对目标数组边缘的认知处理.
- 之前的研究观察到这种违规行为与个别概述的目标.
研究的目的:
- 为了测试这个假设,目标数组边缘的认知处理会影响运动时间.
- 调查是否显示目标范围,而不是单个轮,复制了违反Fitts's Law的行为.
- 了解数组边缘对运动执行的影响.
主要方法:
- 参与者 (N=24) 在触摸屏笔记本电脑上执行到达目标的运动.
- 使用触摸屏和光学测量记录了移动时间和位置.
- 一个控制条件呈现了没有范围的目标来评估Fitts法规的遵守.
主要成果:
- 发现范围内的相对位置对运动时间有显著的主要影响 (F2,44=15.4,p<0.001).
- 距离范围内的最远目标的移动时间与中间目标没有显著差异 (p=0.638),复制了违反Fitts's Law的情况.
- 当没有范围 (p=0.003) 呈现目标时,没有观察到违反Fitts's Law的情况.
结论:
- 一个目标范围复制了以前与概述目标看到的Fitts'法违规行为.
- 这一发现支持了对数组边缘的认知处理影响运动执行的假设.
- 这项研究扩大了对目标呈现如何影响运动控制和遵守菲茨定律的理解.
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