IMAGES & ILLUSIONS …

‘When our neurons interpret what our eyes “see“

But what do we exactly see?

Jacques Guyot. Camaret 2013

Accrodibg to an birtish acdamic suvrey, the odre of the lttres in a

wrod does not raely mettar. Waht‘s ipmorontat are the frsit and lsat

ltetres..

La cascade perpétuelle

(Maurits Cornelius Eischer)

Sens dessus dessous…

What can you see?

Psychologists showed that children never see the naked couple, but …

Nine dolphins !

Can you see them too?

Quickly read aloud the colour of the following word

YELLOW BLUE ORANGE

BLACK RED GREEN

PURPLE YELLOW RED

ORANGE GREEN BLACK

BLUE RED PURPLE

GREEN BLUE ORANGE

ExplanationJohn Ridley Stroop’s theory (1935). You can read word faster than colours. There are

interferences.Theory of selective attention : you must pay more attention to name a colour than to read a word.

What is the colour of A and B squares?

Comparison between the two squares

What is the colour of A and B squares?

Comparison between the two squares

What do you see?

• A potery or two faces?

In fact, nothing moves..

Count the black dots…

...are the horizontal red lines parallel or not ?

One spiral or circles?

Just concentrate on the cross in the middle of the picture. After a short while,

you‘ll see that the pink rotating circle is in fact GREEN ! !!!