Some Women May See 100 million Colours, Thanks To Their Genes

Susan Hogan can’t be sure, but it wouldn’t surprise her if she turned out to be a tetrachromat.

A tetrachromat is a woman who can see four distinct ranges of color, instead of the three that most of us live with.

A genetic test would be needed to verify whether Mrs. Hogan truly fits that description, but it could help explain why the interior decorator can hold up three samples of beige wall paint, “and I can see gold in one and gray in another and green in another, but my clients can’t tell the difference.”

It may be impossible for us trichromats to imagine what a four-color world would look like. But mathematics alone suggests the difference would be astounding, said Jay Neitz, a renowned color vision researcher at the Medical College of Wisconsin.

More at Post Gazette

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