It is a well-known fact that your brain processes what your eyes see. How your brain interprets pictures is influenced by memories and experiences. That is why you are able to decipher pictures which contain missing information. However, your brain can be tricked! Learn about three optical illusions in which lines play the main role. Are the lines straight, curved or parallel? We often ask ourselves this question when looking at works of art by Vasarely.
In 1860, the German astrophysicist, Johann Zöllner, discovered the illusion in which parallel lines that have short diagonal lines running through them appear to either become closer or farther apart.
The optical illusion named after Ewald Hering was discovered just one year after the Zöller Illusion in 1861. This illusion is also based on lines running in different directions. The rectangle in the middle appears to be distorted. In this case, we perceive a change in the two middle lines although the lines are completely straight.
Café Wall Illusion
In the third line illusion game, colours play an important role. The discovery of the staggered checkerboard pattern is associated with the Englishman, Richard L. Gregory, who was a scientist at the Brain and Perception Laboratory at the University of Bristol. In the 1970s, he noticed the optical illusion on the wall of a café near the university. Later, he led a group of neurologists who researched the phenomenon. It was named the “café wall illusion”. The larger the contract between the “bricks”, the better the illusion can be perceived. Therefore, a black and white contrast is the most eye-catching. Experiment with colour and try out a number of variations.