Faces test

Look closely at the picture. Eventually, you’ll start to find human faces.
 That is a hard task, but it is possible you find more than 11 of them.
 

Note that once you have spotted some faces it is now impossible for you to overlook them…
That illustrates our (the human) incapability to have a new outlook on an object which has already left a mark in the mind.

If you see the picture clearly and with no difficulties, but do not recognise any human faces it is advised that you turn to a psychiatrist as soon as possible (not a joke!).