Tuesday, June 07, 2011

Today's interesting fact again has to do with sight.

Our visual cortex processes the information our eyes send to us.

While everyone knows the eye contains rods and cones which allow us to see, most people think that these are evenly distributed throughout the eye.

The Fovea is the small section of the eye that the lense of the eye primarily focuses on, and it contains the majority of cones found in the eye.

You can see how small the Fovea is by extending your arm completely out and lift your thumb.

The area the Fovea sees is about the size of your thumbnail.

You continue to see colour in your perferial vision because your visual cortex fills in the information for you.

If you don't see something in your Fovea, you might not notice it at all.

There is an experiment that involves videoing four or five individuals playing basket ball, and a man in a gorilla suit walks through the play.

When this video has been shown to subjects, and they were told to keep an eye on who has the ball, most watchers miss the gorrilla suit completely.

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