01-10-2010, 01:15 PM
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optical illusions
How do optical illusions trick our brain?
In order to make sense of the world around us,our brains try
to see patterns or shapes that wee can easily recognize.This
principle is called grouping.Our brain can group things into
four categories.
Types of Illusions
Physical – Due to the disturbance of light between the object and eye of the observer (Refraction).
Examples:Mirage,looming,apparent depth of objects in other media etc.
Mental – Due to psychological disorders such as schizophrenia etc.
Examples:Hallucinations.
Artificial – Due to a system of perception,
past experience with objects,perspective vision,color brightness confusions etc.
Examples:Zollner illusion,Ponzo illusion etc.
In order to make sense of the world around us,our brains try
to see patterns or shapes that wee can easily recognize.This
principle is called grouping.Our brain can group things into
four categories.
Types of Illusions
Physical – Due to the disturbance of light between the object and eye of the observer (Refraction).
Examples:Mirage,looming,apparent depth of objects in other media etc.
Mental – Due to psychological disorders such as schizophrenia etc.
Examples:Hallucinations.
Artificial – Due to a system of perception,
past experience with objects,perspective vision,color brightness confusions etc.
Examples:Zollner illusion,Ponzo illusion etc.