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boristhemanishere's avatar

Why does the brain always have to perceive everything around it?

Asked by boristhemanishere (17points) April 29th, 2014

I mean how does it know what the outside world looks like

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2 Answers

Cruiser's avatar

The brain utilizes the 5 senses of sight, sound, touch, taste and smell to assimilate all the sensory messages theses senses send to the brain. From there it is a learning process and then recognition of similar sights, sounds, touches, tastes and smells as you go through life. There are a lot of chemicals (Dopamine & Glutamate to name 2) in the brain that are part of the process that include the risk reward response that helps to ensure the survival of that person and or animal.

flutherother's avatar

Knowing what is going on all around us is necessary for survival. We have evolved, like all other creatures, to be constantly on the lookout for opportunities and dangers.

The brain doesn’t know what the outside world looks like. It just creates a model it can understand based on sensory input.

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