The phrasing of the article seems a bit odd; I really don't know much about this, but the version I read wasn't so much that "people are born with ingrained ideas" or that "the brain is preconditioned" as that the physiology of the eye determines how we see colour. i.e. even though it is true from a physicist's perspective that colours fall on a continually graduated spectrum, our retinas don't detect all wavelengths equally. If that's true, finding a culture which divided up the colour spectrum completely differently to everyone else would be only marginally more likely than finding a pre-technological culture with a word for those wavelengths of light we simply can't see, like ultraviolet or microwave.

But I'm only parroting what I read somewhere.

But seriously, I hear that linguists have 73 words for "grue".

Yeah, I heard that too, except I heard it was 99!

In my college days I earned beer money by being a subject in student and faculty experiments in the psychology department. In one of these, the prof was recruiting people of various ethnic backgrounds (mine being Dutch) and asking them to say whether a variety of color slides in the blue-green spectrum were "more blue" or "more green".

Martin, after a while did they all look amber? :)

Color! Color! Piraha! Waha! (Kali-kali piwa-wu!!)