Journal ArticleDOI
Lateral inhibition and geometric illusions.
Reads0
Chats0
TLDR
The results indicate that lateral inhibition may play a contributory role in illusion formation, but it is not the primary casual, mechanism.Abstract:
It has been suggested that lateral inhibitory processes, operating through the mutual inhibition and displacement of spatially adjacent contours imaged on the retina, may account for many of the classical geometric illusions. Two experiments were conducted, one using an alternative form of the Poggendorff illusion, and the other an alternative form of the Muller—Lyer, in which the adjacent contours necessary for the operation of the inhibitory mechanism were eliminated. In both instances the illusion was still found to exist, although somewhat reduced in magnitude. These results indicate that lateral inhibition may play a contributory role in illusion formation, but it is not the primary casual, mechanism.read more
Citations
More filters
Journal ArticleDOI
Relative contribution of lateral inhibition to the Delboeuf and Wundt-Hering illusions.
TL;DR: It is demonstrated that certain forms of intermittent light stimulation can enhance lateral inhibitory activity and the Wundt-Hering and the Delboeuf illusions were tested under continuous illumination and “shaped” intermittent illumination which augments lateral inhibition.
Journal ArticleDOI
The effects of objective and perceived size properties on visual form matching.
TL;DR: The conclusion drawn from this series of experiments is that the time required to make veridical form judgments depends on perceived differences in the forms to be judged, not on the objective properties of the proximal stimulus.
Journal ArticleDOI
Contrast sensitivity indicates processing level of visual illusions.
TL;DR: It is concluded that the Poggendorff−Ponzo illusions rely more heavily on high-level, percept-dependent cortical processing than do the simultaneous-brightness−simultaneous-tilt illusions and, more generally, that differences between contrast-dependent changes may be a useful tool in determining the relative level of cortical processing of many other visual effects.
Journal ArticleDOI
A theory of poggendorff illusion
TL;DR: The Poggendorff illusion was first explained by Coren et al. as discussed by the authors, who showed that the optical image of the objects on the retina do not quite correspond to the physical shapes of the object, and the lines AC and BC converge before they really reach the intersection points.
Journal ArticleDOI
Examining the crossmodal consequences of viewing the Muller-Lyer illusion
TL;DR: The results show that the presentation of the visual illusion modified the felt lengths of the sticks presented directly behind the illusion, so that the stick presented on the side of space perceived visually as being shorter (behind the wings-in part of the display) was perceived as longer, and vice versa for the stick mounted behind the space perceived visual as longer.
References
More filters
Journal ArticleDOI
Some informational aspects of visual perception.
TL;DR: Special types of lawfulness which may exist in space at a fixed time, and which seem particularly relevant to processes of visual perception are focused on.
Journal ArticleDOI
Eye movements and decrement in the Muller-Lyer illusion.
TL;DR: Two experiments are reported in which a decrement in the magnitude of the Müller-Lyer illusion was found if free eye movements were allowed and saccades across the perceptually short side of the Muller-Lyers figure were found to be shorter than across the perceived long side.
Journal ArticleDOI
The influence of optical aberrations on the magnitude of the Poggendorff illusion
TL;DR: In this paper, the amount of blurring of the retinal image can be reduced by proper selection of an artificial pupil and a chromatic filter, and the magnitude of the reduction is smaller than would be expected if the illusion was predominantly determined by blur due to optical aberration.
Journal ArticleDOI
Binocular and stereoscopic viewing of geometric illusions.
Peter Schiller,Morton Wiener +1 more
TL;DR: It is found that the reduction of illusions under stereoscopic conditions can be attributed to both binocular rivalry and depth perception of the stimuli, and Day concluded that the interpretations of Ohwaki and Springbett regarding the retinal origin of geometric illusions thus seem unjustified.