Movement Thresholds in Peripheral Vision
Movement Thresholds in Peripheral Vision
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余光的运动阈值
DOI：
10.1364/josa.50.000774
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发表时间：
1960
影响因子：
--
通讯作者：
Franklin H. Mccolgin
中科院分区：
文献类型：
--
作者：
Franklin H. Mccolgin
在周围视觉的48个位置确定运动的绝对速度阈值。一个带有标准测高仪指针的飞机型仪器被随机放置在80英寸的黑色凹面上。玻璃纤维半球。在恒定光照条件下，研究了四种类型的运动（顺时针和逆时针旋转，垂直和水平运动）。当被试注视半球中心点时，用极限法确定每种运动的绝对速度阈值。10名航空公司飞行员作为研究对象。对于旋转和直线运动，周长图上的绝对阈值等值线都是椭圆形的，水平轴大约是垂直轴的两倍长。受试者看到顺时针或逆时针旋转的能力没有区别。个体感知垂直运动的能力略好于感知水平运动的能力。速度和仪器手扫过的面积是感知运动的重要因素，但它们并不是对所有类型的运动都具有相似的相关性。
The absolute velocity thresholds of movement were determined at 48 positions in peripheral vision. An aircraft-type instrument, with a standard altimeter hand, was located at random positions on the concave, black surface of an 80-in. Fiberglas hemisphere. Four types of movement were investigated (clockwise and counter-clockwise rotation, vertical and horizontal motion) under conditions of constant photopic lighting. While the subject fixated on the center point of the hemisphere, the absolute velocity threshold of each type of movement was determined for each position using the method of limits. Ten airline pilots served as subjects. The absolute threshold isograms on perimetric charts for both rotary and linear motion are elliptical in shape, with the horizontal axis approximately twice as long as the vertical axis. There is no difference between a subject’s ability to see clockwise or counter-clockwise rotation. An individual’s ability to perceive vertical motion is slightly better than his ability to perceive horizontal motion in the area adjacent to the horizontal axis. Velocity and area swept by the instrument hand are significant factors in the perception of movement, but they are not similarly correlated for all types of movement.