What do you see? How optical illusions work – and examples such as “running man” and illusionary motion
An optical illusion has gone viral as the eyes and minds of netizens are once again tricked.
The running man, who may not actually be running, has become a talking point for many people on the internet.
The image, shared by lens shopshows the silhouette of a man who looks like he is running, but is he?
Here’s everything you need to know about the optical illusion.
What happens in the optical illusion of the running man?
The image shows the silhouette of a man behind black bars. As the bars move, it looks like the man is running – but it’s not.
The black bars in the image move from left to right, creating the effect of a man running, but when the bars start to disappear, the “running” stops.
When you reach the end of the animation, it’s clear that the movement you thought you saw was just an illusion of the eyes and the mind.
This type of illusion works by presenting a series of static images one after another in rapid succession, tricking the brain into believing that the image is actually moving.
This is called “persistence of vision”.
Afterimage optical illusion
Another stunning illusion is the colorful or black and white parrot.
If you look into the colored parrot’s eye for 15 seconds, when the image turns black and white, you can still see color.
Your eyes make the blue parts of the picture look pink and the pink parts of the picture look blue.
Another tricky illusion is the spinning circles with an interesting pink, blue, black and yellow design.
If you look at the image for a few seconds, the circles inside seem to be spinning slowly.
However, this is a mental game called illusory movement.
Some scientists think objects appear to move due to involuntary eye movements
Other scientists have suggested that changes in neurons, which give the illusion of movement, can confuse motion sensors in your visual cortex.
However, there is no right answer.
What is an optical illusion?
Optical illusions occur when our eyes send mixed information to our brains, making us believe we are seeing something that is not the real thing.
These optical illusions are designed to trick you into seeing color when there is none, movement when things are still, and objects disappearing right in front of you.
There are two main types of afterimage: positive and negative.
In a positive afterimage, you can see the image in its original colors (even after the colors of the image have changed) because some cells in the retina continue to send signals to the brain.
Using the parrot as an example – in a negative afterimage, the color you see may be reversed or reversed from the original image.
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