Brain uses decision-making region to tell blue from green

Early visual brain areas, language areas not crucial for color distinction

10:21am, March 4, 2014

THE BLUES  Most people call the color on the left green and the three colors on the right blue. A brain area called the middle frontal gyrus is involved in making this distinction, a new study finds. 

The human brain tells green from blue by relying on sophisticated decision-making areas of the brain, not those that first receive visual input. That finding, published March 3 in the Proceedings of the National Academy of Sciences, also hints that language isn’t necessary for categorizing colors.

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