Chen Chun-Fu, Huang Kuo-Chen
Department of Commercial Design and Management, National Taipei University of Business, Taoyuan City, Taiwan.
Department of Commercial Design and Management, National Taipei University of Business, Taoyuan City, Taiwan
Percept Mot Skills. 2016 Apr;122(2):518-32. doi: 10.1177/0031512516640392. Epub 2016 Mar 27.
This study investigated the effects of target distance (30, 35, and 40 cm) and the color of background lighting (red, green, blue, and yellow) on the duration of movements made by participants with low vision, myopia, and normal vision while performing a reaching task; 48 students (21 women, 27 men; M age = 21.8 year, SD = 2.4) participated in the study. Participants reached for a target (a white LED light) whose vertical position varied randomly across trials, ranging in distance from 30 to 40 cm. Movement time was analyzed using a 3 (participant group) × [4 (color of background lighting) × 3 (movement distance)] mixed-design ANOVA model. Results indicated longer times for completing a reaching movement when: participants belonged to the low vision group; the target distance between the starting position and the target position was longer (40 cm); and the reaching movement occurred in the red-background lighting condition. These results are particularly relevant for situations in which a user is required to respond to a signal by reaching toward a button or an icon.
本研究调查了目标距离（30厘米、35厘米和40厘米）以及背景灯光颜色（红色、绿色、蓝色和黄色）对视力低下、近视和视力正常的参与者在执行伸手任务时动作持续时间的影响；48名学生（21名女性，27名男性；平均年龄 = 21.8岁，标准差 = 2.4）参与了该研究。参与者伸手去够一个目标（一个白色LED灯），其垂直位置在各试验中随机变化，距离范围为30至40厘米。使用3（参与者组）×[4（背景灯光颜色）×3（动作距离）]混合设计方差分析模型分析动作时间。结果表明，在以下情况下完成伸手动作的时间更长：参与者属于视力低下组；起始位置与目标位置之间的目标距离更长（40厘米）；伸手动作发生在红色背景灯光条件下。这些结果对于要求用户通过伸手去按按钮或图标来响应信号的情况尤为重要。
