[Gormo]

> I have a hunch icons and text are recognized by a different part of the brain

It doesn't "feel" like that to me, as far as my own metaperception goes. At least not at a purely semantic level: I see a word, and I associate it with a concept; I see an icon, and I associate it with a concept. There's rarely any syntactic relationship among icons as there is among words, so icons are equivalent to merely seeing an single word in isolation, labelling something.