Über egozentrische lokalisation

Equidistance tendency and its consequences.

“…71-74) noted that the apparent location and orientation of film color is at least partially determined by the location and orientation of the aperture through which it is viewed. Simon (1936) discussed some of the early observations on perceived distortions which related to his own experiments and, it would seem, also relate to the equidistance tendency. Gibson and Carel (1952) reported that a display of stationary lights in a reduced cue situation was perceived as occupying a frontoparallel plane.…”

“…Harker found that only some of the reduction in perceived tilt could be attributed to cyclorotation with the remainder attributed to the action of the equidistance tendency. Simon (1936), in a series of experiments, found that a binocularly observed outline circle physically slanted in depth would change its apparent orientation under reduced conditions of observation. Simon suggested that the perceived orientation (and perceived distance) of such objects would be along an ellipsoid with the observer at a focal point.…”

“…Thus, in the present paper, it is assumed that the equidistance tendency adds a depth factor to any visual field containing more than a single point of light, and that as a depth factor it enters quantitatively in competition or agreement with other depth factors in the determination of a final apparent position of an object in depth. SOME UNSOLVED ASPECTS OF THE EQUIDISTANCE TENDENCY It has been reported that the tendency for surfaces slanted in depth to appear in a more frontoparallel orientation changes with the amount of observation time (Bergman & Gibson, 1959;Clark, 1953;Simon, 1936;. It is therefore possible that the effectiveness of the equidistance tendency (relative to whatever cue systems are available) changes with observation time.…”