Noodle twisters #21 Optical Illusions
What is a Optical Illusion and why we see it different then what it is?
An optical illusion is difference between reality and what the brain thinks its seeing.
The information gathered by the eye is processed in the brain to give a image that does not agree with a physical measurement of the source.
There are three main types:
1- Literal optical illusions that create images that are different from the objects that make them
2- Physiological ones that are the effects on the eyes brain of excessive stimulation of a specific type
3- Cognitive illusions where the eye and brain make unconscious inferences.
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