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Study: Color vision works like colorizing a black-and white movie

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From Tina Hesman Saey at ScienceNews:

Color vision may actually work like a colorized version of a black-and-white movie, a new study suggests.

Cone cells, which sense red, green or blue light, detect white more often than colors, researchers report September 14 in Science Advances. The textbook-rewriting discovery could change scientists’ thinking about how color vision works.

Like a coloring book.

The large number of cells that detect white (and black — the absence of white) create a high-resolution black-and-white picture of a person’s surroundings, picking out edges and fine details. Red- and green-signaling cells fill in low-resolution color information. More.

Maybe that helps explain the craze for adult coloring? Not just that some people have too much time on their hands?

See also: Oldest colour vision cells, 300 million years ago

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