Aha! Just as I suspected! Among the fascinating dream-related facts (or maybe factoids) in the link (please click above) I find the following one pretty darned interesting:
5. Not Everybody Dreams in Color
A full 12% of sighted people dream exclusively in black and white. The remaining number dream in full color. Studies from 1915 through to the 1950s maintained that the majority of dreams were in black and white, but these results began to change in the 1960s. Today only 4.4% of the dreams of under-25 year-olds are in black and white. Recent research has suggested that those changing results may be linked to the switch from black-and-white film and TV to color media.
So, I am going to claim that this supports my pending Colour Blind thesis that our perception of colour is increasingly informed from non-natural stimuli. Of course this then impels the question: “well, colour always existed in nature - arguably much more so than black & white - so why weren’t our dreams always in colour?”.
And that is, I’m afraid, beyond the scope of a humble photographer. Although, I might add, I suspect it has a lot to do with the trend in advertizing from around the 50s and 60s onward (thanks, Mad Men!) toward an endless barrage of full-colour stimuli continually demanding our attention.
But maybe I’ll just sleep on it.