Optical Illusions


Screenshot, Source: sapdesignguild

At SAP Designguild you can find an interesting section about optical illusions.

Extract:

Many of us have at least once come across optical illusions in our lifetime. Beside being fun to solve, optical illusions have the power to puzzle and bewilder because we have an implicit trust that what our senses tell us is physical reality.
Illusions are a nice window into how the brain works. “The mind sees and the mind hears. The rest is blind and deaf.” said Epicharmus 450 years before the birth of Christ. It is surprising to find out that the eye cannot see, it merely perceives information which is passed down to the brain where innumerable processes of classification, comparison, and decision-making are initiated.
In this section we have gathered many instances where the senses (the brain?) tell lies. You can find them grouped for your easier access in the menu on the left side. Probably you have seen some of the listed optical illusions before, such as the “classical” – the geometrical-optical – illusions, since they have been known a fairly long time.
Beside the collection of optical illusions you can find a brief introduction to perception containing some explanations for these puzzling effects.
Compiled by Ramona Winkler, edited by Gerd Waloszek (Product Design Center)

related links:

SAP Designguild – Optical Illusions

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