Shepard's Tables (the illusion of perception of size) is an optical illusion , first described by Roger Shepard in 1990 [1] . Roger Shepard demonstrated the differences between simple geometric properties and their perception.
Possible explanation
Our brain perceives this picture in 3D space: looking at the picture of two identical tables, we are trying to interpret the picture as a three-dimensional object. Two countertops have exactly the same two-dimensional shape on a regular page, excluding the rotation angle.
Our visual perception is a dual process: what we see consists of external influence on our senses and our knowledge of the world.
The illusion shows that we do not see the two-dimensional shape of the picture, instead we perceive the three-dimensional view of the object in space [2] . Our brain, wishing to see a drawing in 3D format, interprets the surface of the table as going away into a perspective similar to a real physical object, as if we were in the real world. Initially, it is perceived that one table is narrow, and the second is wide, but if you take the ruler, you can make sure that they are similar in size. The reason for the error lies in the features of the physiology of vision , and in the psychology of perception .
Literature
- Shepard RN (1990) Mind Sights: Original Visual Illusions, Ambiguities, and other Anomalies, New York: WH Freeman and Company
- Shepard RN (1981) Psychological complementarity. In: Kubovy M & Pomerantz JR (eds) Perceptual organization. 279-342. Hillsdale, NJ: Lawrence Erlbaum Associates.
See also
- Roger Shepard
- Ponzo Illusion
Links
Notes
- ↑ R. Shepard. Mind Sights: Original Visual Illusions, Ambiguities, and Other Anomalies .
- ↑ Paradoxical perception of surfaces in the. Shepard tabletop illusion https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3485780/ .