Muller-Lyer optical illusion, illustration

Numéro d’image : 13377640
Muller-Lyer optical illusion, illustration
Muller-Lyer illusion, illustration. The two lines with arrows at each end appear to be different lengths on the left. In fact they are the same length. There are many explanations for this, but it is thought likely that it exploits our brain's perception of perspective. Viewing the lines as existing in 3 dimensions and assuming that the arrows are emerging perpendicularly to the lines, we get the impression that the line on the left hand side is closer than the one on the right. As the line at the right is perceived to be further away, it is assumed by the brain to be longer.
Licence : Droits gérés
Crédit: Science Photo Library
Taille de l’image : 4181 px × 4181 px
Model Release : Non requis
Property Release : Non requis
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