A WILD optical illusion has a strange effect on the eye-brain relationship.
This trick is scary, but once it’s explained, it’s easy to see how it works.
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Image is low contrast for maximum effect Credit: Mighty Optical Illusions
Stare at the center of the image for a few seconds to see how the illusion works.
The colors spin and briefly merge, only to disappear completely.
Blink once or refocus your vision and the colors will return.
No, the image is not a moving gif, it is the Troxler effect in action.
The Troxler effect is a psychological principle that states that the brain will ignore static and irrelevant stimuli.
The neurons become desensitized to the background and begin to fade out of view, an effect that works best with low-contrast images.
The Troxler effect takes advantage of small movements in the eye called “saccades” or “microsaccades”, small movements that give more receptors in the eye the opportunity to look at a target.
By firmly focusing attention on the center of the image instead of the colors, saccades are suppressed and colors fade.
The illusion is sometimes presented with a dot in the center to help hold the viewer’s attention.
The effect is named after the Swedish physician who discovered the phenomenon in 1804.
Optical illusions are an effective tool to study the behavior of the brain.
The Troxler effect is one of many that gives researchers the opportunity to study error in perception.
Categories: Optical Illusion
Source: tiengtrunghaato.edu.vn