STEREOKINETIC EFFECT AND ITS RELATION TO THE KINETIC DEPTH EFFECT

被引:29
作者
PROFFITT, DR
HECHT, H
ROCK, I
SCHUBERT, J
机构
[1] RUTGERS STATE UNIV,NEW BRUNSWICK,NJ 08903
[2] UNIV CALIF BERKELEY,BERKELEY,CA 94720
关键词
D O I
10.1037/0096-1523.18.1.3
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
The stereokinetic effect (SKE) has been defined and studied by nested circular patterns rotating on a turntable. Circles must appear not to rotate as they revolve, which in turn results in their appearing to translate relative to one another. A powerful illusion of object depth results even though the individual circles do not undergo an appropriate foreshortening consistent with their apparent changes in slant. It is suggested and tested that the SKE is based on the changing positions between the nested contours despite the absence of any change within each contour, whereas the kinetic depth effect (KDE) entails both kinds of change. It follows that a turntable method of presentation is not necessary, and between-contour transformations can be simulated by computer animation. Displays consisting of simple translations were shown to evoke robust depth impressions as were patterns consisting of contours of varying shapes. Comparisons of the depth, compellingness, and rigidity of matched SKE and KDE displays are reported. The SKE is taken to be paradigmatic for how the visual system perceives depth when observing small object rotations that occur in everyday situations.
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页码:3 / 21
页数:19
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