Martinetti R F
J Gen Psychol. 1975 Jan;92(1st Half):129-35. doi: 10.1080/00221309.1975.9711333.
The present experiment was designed to test the hypothesis that binocular disparity functions as a veridical cue, and linear perspective as a nonveridical cue in the perception of a rotating trapezoid. Three trapezoids with proportionately increasing slope were viewed by 10 subjects through viewing screens designed to control the availability of binocular disparity. Monocular and binocular viewing conditions were employed. The dependent variable, proportion of perceived oscillation, was analyzed by a factorial analysis of variance and appropriate post hoc tests. The obtained data indicate that increasing the availability of binocular disparity by increasing viewing screen width favors veridical rotation perception. When the binocular depth cue was attenuated by decreasing viewing screen width, the observer relied on linear perspective, and non-veridical oscillation perception was favored. As linear perspective was increased by increasing trapezoid slope, perceived oscillation increased both monocularly and binocularly. However, for any level of linear perspective, monocular viewing invariabily produced more oscillation than binocular viewing, indicating that monocular depth cues (movement parallax and interposition) were not as effective at neutralizing the illusory perspective effect as the binocular disparity cue.
在旋转梯形的感知中,双眼视差作为一种真实线索起作用,而线性透视作为一种非真实线索起作用。10名受试者通过旨在控制双眼视差可用性的观察屏幕观察了三个坡度成比例增加的梯形。采用了单眼和双眼观察条件。通过方差分析和适当的事后检验对因变量(感知振荡比例)进行了分析。获得的数据表明,通过增加观察屏幕宽度来提高双眼视差的可用性有利于真实的旋转感知。当通过减小观察屏幕宽度来减弱双眼深度线索时,观察者依赖线性透视,并且有利于非真实的振荡感知。随着梯形坡度增加,线性透视增强,单眼和双眼的感知振荡均增加。然而,对于任何水平的线性透视,单眼观察始终比双眼观察产生更多的振荡,这表明单眼深度线索(运动视差和遮挡)在抵消虚幻透视效果方面不如双眼视差线索有效。