Mattson D L
Percept Mot Skills. 1976 Aug;43(1):95-8. doi: 10.2466/pms.1976.43.1.95.
To determine the effects of stimulus length and orientation on the perception of motion, 5 experienced subjects responded with a simple reaction to accelerating lines in peripheral vision while fixating on a reference cross at the center of a cathode-ray tube. Three experimental variables were involved: (a) line length, (b) direction of motion, and (c) orientation of the line with respect to the motion. Simple reaction time (RT) was significantly longer for vertical than for horizontal motion and for lines oriented in-line with the direction of motion than for lines oriented perpendicular to the direction of motion. A significant interaction was found between line length and orientation. The results show that the generalization that RT is shorter for small objects than for large objects must be modified in terms of the orientation of the object.
为了确定刺激长度和方向对运动感知的影响，5名经验丰富的受试者在注视阴极射线管中心的参考十字时，对周边视觉中加速的线条做出简单反应。涉及三个实验变量：(a) 线条长度，(b) 运动方向，以及 (c) 线条相对于运动的方向。垂直运动的简单反应时（RT）显著长于水平运动，与运动方向一致的线条的反应时显著长于与运动方向垂直的线条。发现线条长度和方向之间存在显著交互作用。结果表明，关于小物体的反应时比大物体短的普遍观点必须根据物体的方向进行修正。
