# Jastrow illusionen
Author: Magi-cat

(Till sajtens lexikon)

Se på bilden i [länken](http://www.iflscience.com/brain/optical-illusion-toy-train-tracks-will-make-your-head-hurt)! Visst låter det otroligt att rälsbitarna är lika stora?🤔

Det beror på Jastrow illusionen, först beskriven av  den amerikanske psykologen Joseph Jastrow 1892.

Med Jastrow's egna ord:

"In Jastrow’s words: “In judging areas, we cannot avoid taking into account the lengths of the lines by which the areas are limited, a contrast in the lengths of these is carried over to the comparison of the areas."

http://www.iflscience.com/brain/optical-illusion-toy-train-tracks-will-make-your-head-hurt  

https://en.wikipedia.org/wiki/Jastrow\_illusion