Brain uses decision-making region to tell blue from green

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

By Laura Sanders, 10:20 AM March 4, 2014

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.


Colors can carry important information about an environment — a red berry that’s poisonous or a baby who has turned blue because he’s dangerously ill, for instance. Because colors can be linked to s...

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