From Richard Alleyne’s “Black and white TV generation have monochrome dreams” (The Telegraph: 17 October 2008):
New research suggests that the type of television you watched as a child has a profound effect on the colour of your dreams.
While almost all under 25s dream in colour, thousands of over 55s, all of whom were brought up with black and white sets, often dream in monchrome – even now.
…
Research from 1915 through to the 1950s suggested that the vast majority of dreams are in black and white but the tide turned in the sixties, and later results suggested that up to 83 per cent of dreams contain some colour.
Since this period also marked the transition between black-and-white film and TV and widespread Technicolor, an obvious explanation was that the media had been priming the subjects’ dreams.