I suspect that this study is hog wallow but at study done at Dundee University posits the ability to dream in color or B/W with the type of television you watched in your formative years:
The findings suggest that the moment when Dorothy passes out of monochrome Kansas and awakes in Technicolor Oz may have had more significance for our subconscious than we literally ever dreamed of.
Eva Murzyn, a psychology student at Dundee University who carried out the study, said: "It is a fascinating hypothesis.
"It suggests there could be a critical period in our childhood when watching films has a big impact on the way dreams are formed.
"What is even more interesting is that before the advent of black and white television all the evidence suggests we were dreaming in colour."
http://www.telegraph.co.uk/earth/main.jhtm...scidream117.xmlI have a counter "observation" that the amount of color in my dreams seems to have a correlation with the subject matter of my dreams and the relative depth of my sleep. I dream in either and have all of my life: a mysterious dream of a disembodied arm floating into my bedroom was always in B/W (had it a number of times) and a later one where Redi-Kilowatt attacks my uncle was in living color. Perhaps like Scrooge it is all because of "a blot of mustard, a crumb of cheese, a fragment of an underdone potato."