Optical Illusion: Blink it & You will Miss it! What is the reason for disappearing illusions?

Optical Illusion Picture: The optical illusion pictures going viral these days are the disappearing illusions that one misses in one blink. What is so special about it? The optical illusion art looks like a version of modern art but is in fact a blurry colour cloud. You stare at it for a long and it vanishes somewhat in front of your eyes. We urge you to try the exercise or the optical illusion test below.

Optical Illusion: Rules to look at the image-

Take a look at the images below. The proper way to look at the image is given below:

1. Close your eyes for 10 seconds.
2. You have to open them now and stare at the image below for 15 seconds without blinking. 
3. Try to focus on the centre of the image, actually the dot there. 
4. You may start noticing the colours fading around the dot, and the longer you see it, the dot vanishes as well. 

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Now try to look down at the image. 

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Optical Illusion Image:

Did you also notice the image colours fading? Now some of you must have started doubting your eyes while others must be boasting of their focus and skills of concentration. It is none of the above. The effect is called the Troxler effect. 

What is the reason for this disappearing optical illusion?

The Troxler's effect as explained by the University of Glasgow's IllusionsIndex.org has been named after the one who discovered it, Ignaz Paul Vital Troxler. The effect was discovered in 1804. The optical illusion is based on a simple effect that once you focus on a point the objects around it start disappearing. The more unfocused the periphery, the more profound the effect. 

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What actually happens?

The illusion illustrates once you focus on a certain point what can also be referred to as a single target. Our eyes see an image through many micromovements in it, with each one collecting some information about the scene and passing it to the brain through synapses. This even happens when our gaze is fixated. 

However, when our eyes are directed by the brain to focus on a point, the tiny movements called saccades to start concentrating only on one point. This is what causes the other parts of the picture to fade. 

Try looking at the image below again to notice the effect now. It will be more visible and noticeable to you. 

Neurons are programmed to be unbothered by stationary stimuli. This is what keeps our bodies from sounding the alarm every time we see something from the corner of our eye.

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