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Test your Brain and Mind with these 9 Classic Optical Illusions

Are the two orange circles of the same size? 

One way to learn more about our brains and minds is to look at how we can trick them–that is, to see how we react to brain teasers and visual illusions.

Quick facts: The brain has two hemispheres, each divided into four lobes. Each lobe is (largely) responsible for different functions. For instance the frontal cortex (in yellow) is responsible for decision making and planning; the temporal lobe (in purple) for language and memory; the parietal lobe (in green) for spatial skills, and the occipital lobe (in red) is entirely devoted to vision: It is thus the place where visual illusions happen..

Below are 9 optical illu­sions that com­bine fun and learn­ing about our visual system. We know you know there is a trick since these are illu­sions… but don’t try to be smarter than your brain; enjoy being surprised!

(You’ll find answers and explanations at the end of the article)

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#8. Test your Brain with these 10 Visual Illusions

The brain has two hemispheres, each divided into four lobes. Each lobe is responsible for different functions. For instance the frontal cortex (in blue below) is responsible for decision making and planning; the temporal lobe (in green) for language and memory; and the parietal lobe (in yellow) for spatial skills. The occipital lobe (in red) is entirely devoted to vision: It is thus the place where visual illusions happen.

top 10 visual illusions

The frontal lobe represents around 41% of total cerebral cortex volume; the temporal lobe 22%; the parietal lobe 19%; and the occipital lobe 18%. How the visual system processes shapes, colors, sizes, etc. has been researched for decades. One way to understand more about this system is to look at how we can trick it, that is, to look at how the brain reacts to visual illusions.

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10 visual illusions to combine fun and learning about the visual system (You’ll find answers and explanations at the end of the article) Read the rest of this entry »

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