Préparez-vous à avoir l'esprit complètement soufflé par les meilleures illusions d'optique qui existent ! Ces images trompeuses jouent avec votre cerveau, vous faisant voir des choses qui ne sont pas vraiment là ou vous faisant douter de vos propres yeux. Par exemple, la célèbre danseuse tournante : vous penserez qu'elle tourne dans un sens, mais soudainement elle semblera changer de direction ! Il existe aussi des illusions où deux couleurs semblent totalement différentes côte à côte, mais qui sont en réalité absolument identiques - tout dépend de la manière dont votre cerveau interprète lumière et ombre. Et puis il y a ces motifs fous qui semblent bouger alors qu'ils sont en réalité parfaitement immobiles. Tout cela prouve que notre cerveau aime nous jouer des tours. Ces illusions sont de véritables casse-têtes ! Alors, prêt à vous faire embrouiller les méninges de la manière la plus amusante possible ? Animation créée par Sympa. ---------------------------------------------------------------------------------------- Musique par Epidemic Sound https://www.epidemicsound.com Pour ne rien perdre de Sympa, abonnez-vous!: https://goo.gl/6E4Xna ---------------------------------------------------------------------------------------- Nos réseaux sociaux : Facebook: https://www.facebook.com/sympasympacom/ Instagram: https://www.instagram.com/sympa.officiel/ Stock de fichiers (photos, vidéos et autres): https://www.depositphotos.com https://www.shutterstock.com https://www.eastnews.ru ---------------------------------------------------------------------------------------- Si tu en veux encore plus, fais un tour ici: http://sympa-sympa.com
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00:00Look at this image. There are 12 black dots.
00:03Yes, they are all there, but your brain keeps deleting them from your peripheral vision when you move from one to the other.
00:10This, combined with the blind spot, which is relatively close to the center of your field of vision, slightly offset,
00:18at the place where the optic nerve enters your eye, makes the dots disappear.
00:23If you look at this illusion with one eye, you will see even fewer dots.
00:30This black hole seems to extend towards you, doesn't it?
00:33In reality, this image does not move at all.
00:37It is just your brain that reacts according to what it thinks is happening on the image and that tries to predict what you will see.
00:44Most of those who look at this illusion see the shape grow.
00:48And you, comment below.
00:52The illusion of the following optic, a hypnotic circle, is in fact a geometric loop.
00:58The white circles seem to form a circular shape that rolls inside the circumference of the large red circle.
01:04But as it is an optical illusion, you have probably already understood that this is not really the case.
01:10The white circles all move in a straight line.
01:13But as they are synchronized, their movement creates the illusion that they are moving in a circle.
01:20According to all appearances, we have here a double optical illusion with two hidden puzzles.
01:26Depending on where you look, the dots can either seem to change color or disappear completely.
01:33All you have to do is follow the light gray dot or fix the cross in the center for half a minute.
01:39And you will experience the illusions of this pattern.
01:49The illusion of the following optical illusion
02:13This optical illusion on the theme of numbers completely disconcerted the Internet users.
02:17How many numbers did he see?
02:19Indeed, at first glance, there seems to be only three numbers.
02:23But the more you fix the image intensely, and the closer you get to the screen, the more the numbers begin to appear.
02:30In total, there are seven numbers in this image.
02:33Tell us in the comments what numbers you see.
02:39The optical illusion of the spinning horse makes everyone lose their mind.
02:43The question is the following, in which direction does the horse turn?
02:47Even if many Internet users have their own theories, no one has the slightest idea of the correct answer yet.
02:57The following is one of the most interesting optical illusions in the world.
03:01You probably know Van Gogh's Starry Night.
03:05Well, with a little trick, you can bring life to the painting.
03:13The optical illusion of the spinning horse
03:27First, fix the spinning image above for a moment.
03:31Now, direct your eyes to the painting below.
03:34And here it is, the famous painting comes to life in a whirlwind of spirals.
03:38It's a great example of how our brain can distort an image
03:42depending on how our eyes adapt to what they see.
03:46Look at this moving circle for a moment.
03:49It seems to change color by moving from left to right on a gradient background.
03:54Well, in reality, it was nothing.
03:56The circle always has the same color.
03:58All that changes is the color of the background.
04:01The illusion works because your brain perceives colors differently depending on the context.
04:06So here is a beautiful optical illusion with its scientific explanation.
04:13Here is another example of an optical illusion that we do not get tired of.
04:17Objects seem to move when they are actually completely still.
04:22Like in this spinning vortex illusion.
04:26It is also called a physiological optical illusion
04:29because it is caused by the overstimulation of your brain.
04:33It is when your eyes see too many colors, movements, lights or dimensions.
04:39All this excess information prevents your brain from processing the image correctly.
04:45This image, with its purple and yellow vortex pattern, is a bit hypnotic.
04:50But I promise you that this is neither a gif nor a video.
04:54The image is perfectly still.
04:56The combination of different patterns, different levels and different colors
05:01makes your mind believe that the image moves when your eyes go through the whole.
05:06But if you focus on the center of the image, all movement stops.
05:12This optical illusion in motion has a similar effect.
05:15Its pattern uses the phenomenon of abnormal movement.
05:19It is when an element of a figure seems to move in a different direction from the rest.
05:24This gives you the impression that the image is in motion,
05:27when in reality everything is absolutely still.
05:30Your brain deceives you by making you believe that the image is in motion
05:34because of the way your retina is affected in a particular place.
05:41What would you say to play hide and seek?
05:43Look at this striped image.
05:45It's creepy.
05:46It comes to life when you shake your head vigorously from one side to the other.
05:50Do I have to remind you to do it carefully?
05:53When you start, an image will appear among the lines.
05:56So, what kind of creature did you spot?
05:59Tell us everything in the comments.
06:04This optical illusion in motion is not a gif either.
06:07It is a fixed image, even if you feel like the wheels are turning.
06:12This illusion works thanks to the way your eyes process the images.
06:16They scan it repeatedly, while making an automatic focus and adjustments.
06:21However, there is a way to stop the movement.
06:24Just try to focus on a single wheel.
06:28Look at this illusion with a twisted rope.
06:31Do you see a spiral or a series of rings?
06:34This optical illusion was first described in 1908.
06:39It is called a false spiral,
06:41because, despite what it seems,
06:43it is actually a set of striped concentric rings.
06:49Our next illusion has a pretty cool name.
06:52The Ebbinghaus illusion.
06:54Without giving you a lot of time to think, answer.
06:57Which red dot is bigger, the one on the left or the one on the right?
07:00I bet you think the right circle is bigger.
07:03You see, this illusion is based on the relative size perception.
07:07Your brain makes a relative size comparison based on the points that surround the circles.
07:12But in reality, the red circles in the center are the same size.
07:18This is called the coffee wall illusion.
07:21What do you notice about these rows of dark and light squares?
07:25Most likely, they seem to be inclined or even curved.
07:29But this is just a geometric illusion.
07:31The lines that divide the rows are all parallel and straight.
07:38What about the relative lengths of these two red lines?
07:41First, the tips and arrowheads are likely to affect your perception of the length of the lines.
07:47But that's not all.
07:48In this image, the lines are elongated and they create a three-dimensional wall pattern.
07:54In this structure, the red line in the far corner seems to be as high as the wall itself,
08:00while the red line that is close seems to occupy only part of it.
08:04But if you manage to see beyond these illusions,
08:07you will realize that the two red lines are actually the same length.
08:13Fix the pattern circle in the center of this image and slightly move your head.
08:17You will probably feel a strange sensation.
08:20The central circle moves independently of the rest of the image.
08:24Your brain cannot help but fall into the illusion of movement due to the monochrome ring that surrounds the circle.
08:31These two eagles seem to be of different colors, don't they?
08:35Well, not really.
08:36What you are seeing is the Bézold effect.
08:39A color will appear different depending on its relationship with the adjacent colors.
08:44In other words, these bird silhouettes are of the same shade of red.
08:48But if we add yellow or blue bars, they seem to take different shades.
08:56What you are seeing now is the illusion of the context of colors.
08:59So, tell me, what colors are the eyes of the lynx?
09:03The one on the left is a duck blue, and the one on the right seems to be gray.
09:07This proves to us that the color surrounding an object affects the way our brain perceives the color of the object.
09:13In fact, the two eyes of the cat are exactly of the same gray color.
09:17But the red color around the left eye gives this eye a duck blue shade.