1985'2, p.136
Kozlov V. I.
Visual illusions and polyfunctionality of perception

General assumptions underlying existing approaches to the study of visual illusions are considered. It is shown at that that they all fail to take into account the polyfunctional nature of perception which provides for flexibility in reflection of properties of objects under different conditions of perception. Results of an experimental study of Ponzo illusion under conditions of perception of real objects and of their representations are given. Different perceptual outcomes are determined by different anisotropic relations which appear in the process of perception and which provide the immediate-sensual basis for the polyfunctionality of perception.