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optical illusions
Diverting tests
optical illusion
   
optical illusions optical illusion


> Test n 1 :

Quickly count the number of ' F' in the following text :

+++++++++++++++++++++++++++
FINISHED FILES ARE THE RE-
SULT OF YEARS OF SCIENTIF-
IC STUDY COMBINED WITH THE
EXPERIENCE OF YEARS
+++++++++++++++++++++++++++


You finished counting ? Check the answer :

How many F there are ? (give answer in figures)

> Test n° 2 :

Try to decipher the following paragraph:

Aoccdrnig to a rscheearch at Cmabrigde Uinervtisy, it deosn't mttaer in waht oredr the ltteers in a wrod are, the olny iprmoetnt tihng is taht the frist and lsat ltteer be at the rghit pclae. The rset can be a toatl mses and you can sitll raed it wouthit porbelm. Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe.

try by yourself shaking a sentence, the effect is incredible : we can always read without problem

write here a sentence

and click here to shake it

> Test n° 3 :

Read quickly this sentence :

I
love
Paris in the
the springtime

read again slowly : a "the" is often forgetted

> Test n° 4 :  

Make quickly and in the order of the figures this mental calcul

give the response in figures, without accent.

1000
+
40
+
1000
+
30
+
1000
+
20
+
1000
+
10
=

 

> Test n° 5 (very hard) :
PCan you say aloud and quickly the color of the words below ?
Blue
Red
Green
Yellow
Red
Yellow
Green
Blue
Yellow
Red
Red
Blue
Yellow
Red
Green
Blue
Yellow
Red
Green
Green
Red
Blue
Green
Yellow
Yellow
Green
Green
Blue
Blue
Red
Yellow
Green
Red
Yellow
Yellow
Blue
Yellow
Blue
Red
Green
Red
Green
Red
Blue
Blue
Green
Blue
Yellow
Red
Blue

The brain cannot be prevented from treating all the word, we are sometimes encouraged to read the word instead of saying its color.
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